Focus Retina

Treating Patients with Visual Impairment Patients who are blind or vision impaired will have different needs to other groups. In the general population, 70% of information is visual. Sight loss can therefore totally change the way that people communicate. Getting communication right is so important, but obviously difficult in a busy environment. Varying Needs People vary in what they can see, and this reflects in what they need from communication. A small number of patients will be totally blind. Aside from this, there is a huge variation in types of sight loss. Someone who has central vision loss (e.g. Macular Disease) may not see faces or expressions; they may not see written signs, or be able to...

Sometimes the current news is a good source of material that can be used as examples of some of the more difficult concepts that we have discussed in previous articles. If you have been reading these articles for some time, you are aware that I have discussed "Illness" before, simply because so many are inflicted with a variety of personal challenges with their health. Recently, a popular radio and television personality Glenn Beck made a tearful announcement that he had been informed by his doctors that he has a disease called macular dystrophy, a relatively rare genetic disorder that causes a progressive loss of vision. Not too long ago another radio personality, Rush Linbaugh experienced sudden...

ith the obesity rates rising, more and more people are developing type 2 diabetes. Type 2 diabetes is when the body does not produce enough insulin or the insulin that is produced is not used by the body. Without the proper amount of insulin your body can't use glucose to produce energy. Glucose is the fuel for all the cells of the body and without your body can just shut down. There are many different medical complications that one can get from not having their diabetes under control. Just some of the possible medical complications from type 2 diabetes are: heart disease, stroke, kidney disease, eye degeneration or blindness, gum disease, poor foot circulation which leads to severe foot problems...

Diabetes can be quite common in northwestern countries. Adult-onset diabetes, diabetes Type II, or non-insulin-dependent diabetes mellitus represent a variety of the disease that can be caused by an elevated number of metabolize carbohydrates, also called sugars, in the blood. Diabetes onset may be unnoticed for an extended period, but the exacerbation of the problem can be substantiated because of poor diet and/or obesity. The problem with diabetes mellitus equals not a lack of the insulin, but rather its lofty amount of secretion. Diabetes affects insulin levels by disrupting the metabolic activity of sugars in the body. This overabundance of insulin embodies metabolic ineffectiveness, which...

Research is conclusively showing that omega 3 is absolutely beneficial to good health. However just to confuse the situation though, there are different kinds of essential fats to be found in different sources of omega three. For instance, if you were to eat flaxseed then the Omega three that you would get from that would be ALA omega 3. On the other hand, if you were to eat oily fish then the omega three fats that you would get from them would be DHA and EPA. Of them all, research is showing that the best Omega three fats for you are the ones from oily fish; but, what are the benefits of taking omega 3 from oily fish? Well here are what I think are the 3 most important benefits:- 1. One of the...

a href=" rel="nofollow" rel="tag">standard monofocal IOLs can only provide clear distance vision and require patients to wear reading glasses for close vision, presbyopia-correcting IOLs with multifocal designs are approved to offer clear vision at multiple distances. There are three brands of multifocal IOLs that are FDA-approval: AcrySof IQ ReSTOR, ReZoom and Tecnis. The original version of AcrySof IQ ReSTOR changes the way light is directed when it falls on its different zones to achieve vision at multiple distances, while the newer version provides better intermediate vision. ReZoom is actually an upgrading of the Array IOL and uses different zones within concentric rings for multiple focuses...

Our eyes are greatly ignored, though they are very important organs for our human beings. Generally, receiving eye examinations is very effective to detect some potential eye problems. But most of us have failed to do this. Therefore, many eye diseases become worsened when they are diagnosed. Most of us seldom pay any attention to our eyes till they become sick. However, those problems can always not be treated easily when detected, though we go to visit eye doctors. For example, the damage caused by glaucoma is not reversible and sufferers may become blind. But if it can be detected at its early stage and treated properly, suffers' vision can be saved. In a word, prevention is much more effective...

The optometrist, also recognized as the doctor of optometry, was the major source of eyesight care. The working nature of this field is the examination and diagnosis of the person's eyesight problems and to name a few; depth and color perception, focus and eye coordination, farsightedness, and nearsightedness. They can set down eyeglasses, contact lenses, and they can give some treatment for vision therapy and even low-vision rehabilitation. Doctor of optometry likewise tests for glaucoma and any other eye problem caused by universal diseases just as hypertension and diabetes. They can prescribe medicines for treating vision problems and eye diseases or even give some pre and post operative care to...

If you have ever heard of Lasik, you must know it is a kind of eye surgery which is able to correct vision for people who have nearsightedness, farsightedness or other eyesight problems. In general, it is a vision correction procedure performed by a laser. The patients undergoing such a surgery are believed to see objects both near and far clearly without the help of eyeglasses and contact lenses. Lasik is a rather simple eye surgery which needs only a few minutes to get itself finished. Therefore many myopia and hyperopia sufferers would like to choose a Lasik procedure to correct their vision. However, the point is that not everyone is suitable to undergo this procedure. If one could not meet...

Eye glasses now play very important role in our daily lives- they are usually used as vision rectifying devices. Therefore, if we really have troublesome eye diseases, some prescription glasses are needed. However, common prescription eye wear are not suitable for sports use, especially in those intensive sports activities. And some of us, also called sport fans or athletes, are in want of eye wear for both vision correction and sports use. In the market are really some special prescription sports glasses that can completely meet our demands. These special eye glasses are really perfect in vision correction. It is really a horrible matter to have some eye diseases, and our daily lives will be...

LASIK eye surgery has been performed on more than one million of people in the world. Almost all of them are satisfied with the results - they have been able to eliminate the dependence on corrective eyewear and most of them even don't need prescribed glasses or contacts to see and read anymore. Having heard of such results, you may begin contemplating LASIK eye surgery. But unfortunately, LASIK surgery is not for everyone. Many people are considered as good LASIK candidate, but some people do not meet the criteria. You have to visit your doctor and consult with him or her, take a comprehensive eye and health examination, answer some questions and your doctor will then determine whether you are...

Living a quality life while suffering the effects of low vision is challenging to all those who have experienced the condition. Whether your favourite past time of reading a good book or the morning newspaper has become demanding, work tasks are becoming increasingly difficult, or you feel that driving has become an unsafe adventure for yourself and other road users, there are simple and effective ways to alleviate and cure low vision conditions, allowing you to get on with living your life the way you want. Vision loss can be frustrating and traumatic. The term 'low vision' refers to a condition where an individual suffers from a significant visual impairment caused by a variety of factors which...

I've seen many people suffer needlessly from eye pain. They often think it's caused by spending too much time on their computers or from eyestrain or other reasons. They worry about brain tumors, brain cancer, glaucoma, eye diseases and many other ailments. Some have even undergone MRI's and multiple eye tests and exams to see if their pain is caused by the eye only to find out it's because of sinus problems or sinus infections. Yes, many people who've been suffering from either left eye pain or right eye pain have discovered that their eye pain or pressure is actually caused by their sinuses. Of course, you may want to have your doctor rule out your sinuses as the problem if it's ongoing. And...

t the most out of the foods we eat especially plant foods, it is to our advantage to eat them raw whenever we can. It is natural for our digestive system to eat a high alkaline diet and our physiology in general to consume plant food in its raw state to get the full benefits of the phytochemicals found in plant based foods. These "bio-chemicals" give our bodies the boost that it needs to keep our immune system running at full capacity and it is easier to digest. This is probably the way that nature intended for us to eat our food but we discovered thousands of years ago that cooking our food made it easier to chew and in some cases it made the food taste better. Try consuming roughly 50-70% of your...

It may well just do that, as this important antioxidant is apparently something we are born with but cannot produce more of. That may be of importance to those who value their eyesight. So, will lutein improve vision for you if you have failing eyesight was one question I was intrigued to find out the answer for. It was because I have elderly parents, and one of whom has had eye surgery to combat macular degeration. This is an age related condition and a real worry amongst the elderly the world over. While modern medical science, tools and techniques are making bold strides in many health areas, we must try to remember that we should not rely entirely for others to provide solutions to our problems...

Question: I intend to join the forces in five years when I graduate from university, but my eyesight is getting worse quite quickly - although I have net been diagnosed with any eye condition. I am worried about having corrective laser eye surgery because there is a risk of being left with even worse eyesight. Are there any herbal supplements or vitamins that could help improve my vision? Answer: The eyes are the most powerful and precious organs in the body, so it is very important to look after them. The different structures of the eyeball - cornea, sclera, pupil, retina, fluids and the muscles that move the eyes in different directions - were identified by Galen, the great Greek physician and...

A few years ago eggs were thought to be the culprit in producing artery clogging cholesterol in the blood (all of the cholesterol is in the yolk of the egg). But in recent years, the School of Public Health at Harvard University had traced over 100,000 nurses for about 10 to 12 years and could not find any difference in the risk of heart disease for anyone eating 1 egg a week or anyone eating more than 1 egg a day. Recent studies have shown that eating 2 eggs may actually improve your lipid profile. (cholesterol is also known as lipid, the fatty substance that is produced by the liver and also found in highly saturated fatty foods) Also, regular consumption may help to prevent clotting of the blood...

The effect of the compound, N-acetylcarnosine, on human cataracts has been thoroughly investigated and proven to be safe and effective toward slowing down and even reversing the disease. Over the last ten years, Dr. Mark Babizhayev and his team of Russian medical researchers have continued to observe the ongoing beneficial effects of this breakthrough cataract eye drop. In clinical trials conducted, it showed that patients instilled with two drops of the 1% N-acetylcarnosine (Can-C™) eye drops twice daily for a period of 6 months showed vast improvement in their pre-existing eye conditions. The effective rate was a reported 100%. These results led to the patent and manufacture of the product...

Most people seldom go to see an eye doctor for an eye exam unless they find things in vision becomes blurry and when the poor vision lead to difficulties with study or work. All of them neglect the periodic optometric examinations which are an important part of routine preventive health care. Regular eye check decreases the possible eye problems and helps to find out early diagnosis. Therefore, regular eye examinations are recommended to everyone to take every two years, especially for those who have any prescription or current problems. The fact is that they are suggested to have an eye exam once or twice a year. Why? The Reasons are: Regular eye exams guarantee you a near perfect vision. No matter...

type="text/javascript"> ch_client = "articlealley"; ch_type = "mpu"; ch_width = 590; ch_height = 250; ch_non_contextual = 4; ch_noborders = 1; ch_vertical ="premium"; ch_sid = "590x250 Article Mixed Top"; ch_alternate_ad_url = " var ch_queries = new Array( ); var ch_selected=Math.floor((Math.random()*ch_queries.length)); if ( ch_selected < ch_queries.length ) { ch_query = ch_queries[ch_selected]; } Unless you were born blind you already know how valuable your eyes and vision are in coping with life. Helping us to process information on the world around us, our eyes constantly work to help us enjoy life and avoid danger. Dogs also use their eyes in similar ways but with a few minor important...

As a special eye disease, glaucoma usually develops slowly and unnoticeably. But this condition can damage the eye seriously and even lead to blindness. The normal circulation of watery fluid in the eye is essential for eye health. Healthy eyes allow eye fluid to enter and exit with ease. The reason of glaucoma is that the exit route for the fluid becomes blocked. As a result, pressure in the eye will increase. Without early detection and treatment, such an increased eye pressure would damage the optic nerve, which is closely associated with visual loss and blindness. Currently, most eye doctors will prescribe eye drops for the control of eye pressure. Controlling or even lowering the increased eye...

Drinking of wine has been for long associated with health benefits that cannot be delivered by any other alcoholic beverage. Beer causes all kinds of health problems and is simply bad news for your liver and your stomach. Brandy is just as bad, but wine, wine is the exact opposite. It will actually protect you from some of the ailments that you are predisposed to. Heart protection has already been highlighted in detail, and so have the antioxidants that are available in red wine that encourage natural detoxifications to boost the body systems. What has not been said is the ability of the wine to reduce the risk of getting diabetes. With a regular glass, you don't have to worry about your blood sugar...

type="text/javascript"> ch_client = "articlealley"; ch_type = "mpu"; ch_width = 590; ch_height = 250; ch_non_contextual = 4; ch_noborders = 1; ch_vertical ="premium"; ch_sid = "590x250 Article Mixed Top"; ch_alternate_ad_url = " var ch_queries = new Array( ); var ch_selected=Math.floor((Math.random()*ch_queries.length)); if ( ch_selected < ch_queries.length ) { ch_query = ch_queries[ch_selected]; } Athletes and sportsman should have good eyesight which is good for their work, and at the same time their eyes are easily to get hurt as the activities they participate. The strong hit on eyes usually happens during the contact sports. Eye piercing injuries may occur by the fish hook when they are...

Our bodies are wonderful machines. They do and accomplish literally billions of activities that day and almost all of these activities come off with 100% accuracy almost every single time. Through millions of years of evolution -- which is basically nature's way of engaging in trial and error experimentation on a grand scale -- our bodies have learned what works and what does not. Because of this experimentation there are mechanisms within our body that keep us safe from harm, both outside our bodies and from within our bodies. One such mechanism is what scientists and health professionals refer to as the "blood/brain barrier." This type of figurative wall acts as a kind of gatekeeper that prevents...

Before going in for an eye exam, it's important to know what you (or your child) can expect during the appointment. First and foremost, the purpose of an eye exam is to check a person's vision for any changes or imperfections. Eye doctors also use this opportunity to look for any diseases of the eye. During the appointment, a variety of tests and tools are used. Each one of these procedures analyzes a separate aspect of a person's vision. At the beginning of the exam, your doctor will ask about your medical history and any problems you might be experiencing with your vision or eyes. Next, the doctor will use a light to evaluate the exterior parts of the eye. He or she will also measure the patient's...

Koi diseases can be of different varieties that can be detrimental to the health of your fish. Keeping a close watch on the common ailments that can affect your Koi is necessary in order to identify the typical indications that may suggest that your fish may be suffering from a disease. Owners of this species should be aware of a wound that they may find on their Koi fish that does not seem to heal. Although at the beginning, the fish may seem unperturbed by the wound and show no signs of discomfort. However an apparent open wound that does not improve or may be spreading could be a sign of a cancer. The cancer can prevent the wound from healing and it may be aggravated by some parasites that keep...

We all understand the benefit of super light polarized sunglasses as applied to golfing and fishing and other sports. Super light polarized sunglasses allow clarity and comfort during outside activities. This combined with UV protection can be a preventative measure for eye disease. They can also be very stylish and with a lighter frame you can be comfortable wearing your super light polarized sunglasses. As I mentioned above just cutting the glare is not always going to be enough. So what you need to consider is UV protection with your super light polarized sunglasses. UV is an ultra violet ray that is just outside our visible light spectrum. Sunlight is the most common source of UV rays but don't...

Ultra refined fish oil is steadily becoming more and more popular. It helps those who are ill but also does its part for those who are healthy. This is because it helps to cure existing ailments but also goes a long way in preventing future health problems. However, not just any common fish based oil can do this; therefore this article is divided into two parts: 1. The Uses of Ultra Refined Fish Oil The omega 3 fatty acids present in ultra refined fish oils prevent diseases like heart failures, depression, cancer and so on. For example, low levels of DHA in the brain have been proven to lead to a higher incidence of depression. However, fish supplements provide a natural supply of DHA to assimilate...

What is fish oil? Know this supplement and have a healthy body. The advantages of fish oil supplement is numerous and wide-ranging. Fish oil, which can be obtained from fatty fish like mackerel and tuna, is rich in Omega 3 and Omega 6 fatty acids. These fatty acids are essential by primary organs of the human body, such as the heart and the brain. There is a popular claim of fish oil supplementation thesedays rather than having fatty fish because of the presence of toxic substances in fatty fish such as mercury. Fish oil is necessary by the human body as it can play a primary function for plenty of body organs. Below is a brief explanation of benefits of fish oil...

Graves' disease is the only kind of hyperthyroidism that has inflammation of the eyes, swelling of the tissues around the eyes, and bulging of the eyes. Graves-Basedow disease, also known simply as Graves' disease. Graves' disease is the most common form of hyperthyroidism. It occurs when your immune system mistakenly attacks your thyroid gland and causes it to overproduce the hormone called thyroxine. When the thyroid is too active, it makes more thyroid hormones than the body needs. High levels of thyroid hormones can cause side effects such as weight loss, rapid heart rate and nervousness. The thyroid gland is under continuous stimulation by circulating autoantibodies against the thyrotropin...

Is declining eyesight apart of getting older? Well the answer to that question is yes and no. for us older Americans who fail to get the proper preventive care, our vision will continue to get worse with age. Most of us can expect by age 65 to have some sort of eye impairment, but with a proactive mindset toward preserving our eyesight we can off set the inevitable. Most importantly, never assume that your vision irregularities are just a regular process of getting older.   Preventive eye care is crucial to maintaining good eyesight. See your eye doctor once a year and protect your eyes from the suns ultraviolet rays by wearing quality sun glasses.   Some of the most common eye disorders that...

Some people only know that there are kinds of eye exams, which will be conducted when they begin to wear eyeglasses or contact lenses. However, there are actually particular contact lens exams, which are exclusively for contact lens wearers. Some people consider a routine eye exam and a contact lens exam as the same one. Actually, there are fundamental differences between the two types and this writing focuses on this information. With these differences in mind, it is possible to make a right schedule of eye exam that is truly needed. A routine eye exam aims at detecting vision problems, eye disease and general eye health issues. Some of these problems can not be realized at an early stage and a...

HIGH BLOOD SUGAR CAN EFFECT YOUR EYESIGHT  it is very important for your body to rest and is essential to regaining control of your health.  Your eye has a lens and an aperture (opening) at the front, which brings objects into focus on the retina at the back of the eye. The retina is made up of a delicate tissue that is sensitive to light, like film in the old cameras. At the center of the retina is the macula which is a small area about the size of a pinhead. This is the most highly specialized part of the retina and it is vital because it enables us to see fine detail to read small print. The other parts of the retina give us side vision (peripheral vision). The rest of the eye in front of the...

Contact lenses are used for vision correction and are placed on the cornea of the eye. They do the same corrective function that conventional spectacles, or glasses, do. However, in comparison, they are very light in weight and are, for all purposes, invisible. Contact lenses help form the image on the retina of the eye by either converging or diverging the rays of light entering the eye. Earlier contact lenses were made of glass, and were scleral lenses. Scleral lenses are large contact lenses that cover the complete sclera – the white outer coating – of the eye. These unwieldy lenses could only be worn for a short period at a time. With the development of PPMA – polymethyl...

To understand how a detached retina surgery can be performed, we need to understand what retinal detachment is. In a layman’s language, it is a disorder of the eye where the retina gets separated from its attachment to its underlying tissue within the eye. Retina is a thin layer of light-sensitive tissues on the back wall of the eye. When we look around, light from the objects we are trying to see enters the eye. The light image is focused onto the retina by the cornea and the lens. The retina translates that focused image into neural impulses and sends them to the brain through the optic nerve. The retina can be compared to the film of the camera. Retinal detachments are basically results of...

Pass the Prozac for the Eye Floaters? Posterior Vitreous Detachment is a common condition, which occurs in about 75 per cent of people over the age of 65. As people get older the vitreous, a jelly-like substance inside the eye changes. This can cause posterior vitreous detachment. The vitreous is a clear jelly-like substance within the eye, which takes up the space behind the lens and in front of the retina, the light sensitive layer at the back of the eye. It is 99 percent water. The other 1 percent consists of substances, which are important in maintaining the shape and structure of the vitreous. The outer part of the vitreous (the cortex) has the highest concentration of collagen. The vitreous is...

Laser eye surgery and LASIK surgery are one and the same. This is a procedure that can take less than perfect vision and make it near perfect again. There is a very high success rate with this surgery and most people that have it are able to see very well without using corrective lenses. LASIK surgery was introduced to the public in 1990 and ever since it has been very popular for those that can afford it. Laser surgery has worked well with people that have myopia and hypermetropia. In perfect vision light goes into the eye through the lens. It is refracted or bent to fall on the retina, which focuses the image. When you wear eyeglasses the lens work with the natural lens of the eye to make the...

Have you ever had black spots in your vision & wondered what they were or if you should be concerned? Essentially, there are only a handful of things that can cause black spots in your vision. The main are "floaters", an intermittent and temporary lack of adequate blood supply to the eye, and a retinal break. We will talk briefly about each and help you to better understand them. Floaters. We've all had them at some point. For those lucky few, who perhaps haven't yet, count your blessings! It is only a matter of time however until you too develop floaters. So what exactly are they? Floaters are a layman term for vitreal degeneration or a posterior vitreal detachment. They are the result of a natural...

Retinal hemorrhage means bleeding onto the surface of the retina caused by rupture of the tiny blood vessels that lie on the surface of the retina. Retinal hemorrhage signify increased pressure within the skull. This may result from head trauma and bleeding, whether accidental or intentional (child abuse). It was once believed to be pathognomonic of so-called shaken baby syndrome, but this is no longer thought to be true by the forensic pathology community. Retinal hemorrhages in children are important clinical findings. They may be associated with trauma or systemic diseases. In the absence of bleeding disorders, retinal hemorrhage most often result from non - accidental injuries such as direct...

Is that normal?? That's a very common complaint when patients call the office. They are usually puzzled, often scared, and always eager to find out why they are seeing weird dots, floaters or webs inside their eye. The only way to really assess this problem is with a complete, dilated eye exam. Even though the eyedrops are a hassle, they allow the ophthalmologist to look at the entire retina, including the optic nerve, blood vessels (veins and arteries), the macula and fovea, as well as the peripheral retina. The vitreous gel is usually optically clear, but sometimes floaters or strands can be seen within it. When a patient calls the office with these complaints, it is important that their complaint...

Experienced surgeons perform Vitrectomy surgery in India with excellent results. Patients opting to undergo the treatment are facilitated with the facilities of senior most surgeons of India having vast experience and successful profiles, of performing numerous successful surgeries.Vitrectomy surgery in India have certifications for internationally recognized quality standards and are well-equipped and staffed to ensure the highest level of professionalism, safety and care to patients.   What is Vitrectomy? Vitrectomy is the surgical removal of the vitreous gel from the middle of the eye. It may be done when there is a retinal detachment, since removing the vitreous gel gives your eye doctor...

Optic atrophy refers to changes in the color and structure of the optic disc associated with variable degrees of visual dysfunction. Optic atrophy may be classified into hereditary, consecutive, circulatory, metabolic, demyelinating, pressure, post inflammatory and traumatic types. Degeneration of the retina and the optic nerve due to different patho-physiological processes is believed to be the cause of this disease. The Ayurvedic treatment of optic atrophy is aimed at preserving vision, slowing down or reversing the degeneration in the retina and optic nerve and treating the cause, if known. Medicines like Tapyadi-Loh, Punarnavadi-Mandur, Saptamrut-Loh, Panch-Tikta-Ghrut-Guggulu, Punarnavadi...

Learn about the Diabetic Retinopathy disease which occurs in diabetes patients. The disease of Diabetic Retinopathy damage eye's retina and leading cause of blindness. Diabetes occurs when diabetes damages the tiny blood vessels inside the retina, the light-sensitive tissue at the back of the eye. The blood vessels of the retina are the first to be damaged by high blood sugar. Diabetic retinopathy includes microaneurysms, intraretinal hemorrhage, exudates, macular edema, macular ischemia, neovascularization, vitreous hemorrhage, and traction retinal detachment. Diabetic symptoms are not identified in the early stage. Later symptoms of diabetes Retinopathy are eye pain, blurred vision, floaters and...

Floaters are translucent dots and squiggles that waft to and fro within vision and in front of what is being looked at. They are very common. They may be of any shape and can be difficult to describe. Terms like "a spider" or "a fly" or "a cobweb" or "frog spawn" are often used and they may appear so real that the affected individual may reach out to try and catch them. The fancy medical name for them is "Muscae Volitantes" which means flies that flit about. What are they? The main internal cavity of the eye is filled with a jelly like material called "the vitreous". This is mostly made up of water which is chemically linked to fine molecular stands. This arrangement gives the vitreous some...

You may be asking yourself, "If diabetes is a disease of the pancreas, what's it got to do with my eye sight?"  The answer is a lot.  Diabetes sufferers are at higher risk of contracting cataracts, blurred vision and diabetic retinopathy.  These are all potentially blinding, but easy to treat if diagnosed early enough, which means it is very important to attend your yearly eye examinations. Blurred vision is usually only temporary, and may be one of the first symptoms of diabetes, but may also occur at any time if your diabetes is not kept under control.  This causes the lens to swell, resulting in the blurred vision.  When your diabetes is brought back under control the blurring will go away...

The optomap Retinal Exam provides a panoramic view of the back of a person's eye (the retina). The view provided by the optomap displays up to 80% of the retina without dilating the patient's eyes. How Does the Optomap Work The patient places their eye to be photographed up to the instrument and the doctor's assistant positions the patient for a photograph and takes the picture. The optomap captures its image in only 1/4 of a second. The photographer takes two photos and evaluates the images. If the images look good the same thing is repeated on the second eye. The image captured allows the doctor to view up to 80% of the retinal fundus at one time. The image may be magnified or manipulated for a...

The retina is an extremely thin tissue that lines the extreme back of the eye and is basically responsible for the assimilation of visual data, which is then transmitted to the brain by the optic nerve for interpretation. A retinal detachment is a separation of the retina from its attachments to the underlying tissue, usually due to trauma, bleeding, extreme near-sightedness, medications or surgery. This condition invariably leads to complete loss of vision, and needs to be treated urgently. Currently, surgery is the only viable medical option in the management of retinal detachment. The limitations of surgery are that eyesight may not be regained for several months, and recovery may be only partial...

Resolution is the ability to witness two sources close together. iPhone4 offers higher screen resolution than most of its predecessors, with extra small pixel size and smooth display. It exceeds the ability of your eye to detect them. It provides a continuous and pixellated look. At any particular distance of the iphone4 screen, the two objects closer together are marked by smaller angles of separation, which make them difficult to distinguish. For good screen resolution, any two nearby objects observed from far off distance seem a single object. For those with perfect eyesight, the iPhone 4's pixels are resovled at one foot away. It's retina display makes everything you do and see on iPhone 4...

What is the meaning of floaters? Floaters are seen by the patients as floating black spots on their visual field. Why patients see floaters The eye consists of two segments, the anterior segment which lies infront of the lens and is filled with aqueous humor while the posterior segment is filled with vitreous humor. During childhood, the vitreous is clear and is jellylike material. Later in life, vitreous normally will undergo liquefaction and changed from jellylike material to fluid like material in a process called vitreous syneresis and this will cause the collage fibers within the vitreous to form strands. With each eye movements, those strands will also move, causing floaters. Another normal...