| Many types of refractive errors are correctable | | | | In this case, the cornea is too short and flatter |
| by Lasik. The end result of the Lasik procedure | | | | than normal. Near vision will be blurry if light is |
| can be influenced by varying degrees of severity. | | | | focused behind the retina. |
| There are still benefits of having surgery for | | | | Lasik can also correct astigmatism, which is |
| those with very bad eyes, but they still may | | | | another type of refractive error. An eye not |
| need glasses. | | | | consistently curved causes this condition. Light |
| Refractive errors are eye conditions which keep | | | | passes through the cornea and the lens, and it |
| light from focusing correctly, causing blurred vision. | | | | focuses at various points behind and in front of |
| Glasses or some other sort of corrective device | | | | the retina of patients with astigmatism. Patients |
| will be needed by that individual, to see focused | | | | who suffer from astigmatism have blurry vision |
| objects. | | | | at both close and far distances. |
| In a healthy eye, light will pass through the cornea | | | | Presbyopia, more commonly known as aging of |
| and lens, and it is able to focus into the correct | | | | the eye, is another type of refractive error that |
| location on the retina. Refractive errors occur | | | | can be corrected utilizing Lasik. It typically |
| when an eye is misshapen. | | | | presents in persons over forty. As people age, |
| Myopia is better known as nearsightedness. This is | | | | they lose the ability to focus the lens of the eye, |
| the most common refractive error correctable by | | | | and that loss causes presbyopia. The need for |
| Lasik. A person who has myopia will experience | | | | reading glasses, or bifocals, often comes from this |
| light passing through the cornea and lens, but it | | | | condition. Presbyopia can also be corrected |
| then focuses in front of the retina. A cornea that | | | | through laser eye surgery. |
| is too long or too curved will easily cause this. A | | | | Each of these is one of the refractive errors |
| symptom of this condition is blurry vision at a | | | | Lasik can fix. Every refractive error needs a |
| distance. | | | | slightly different method for correction, using the |
| Farsightedness is also called hyperopia. Lasik | | | | laser technology. The cornea is reshaped using the |
| surgery can also correct a refractive error. | | | | laser to create peaks and valleys within the |
| Farsightedness is essentially just the opposite of | | | | cornea. This will in turn cause the light that is |
| nearsightedness. Light passes through both cornea | | | | passing through, to focus in directly on the retina, |
| and lens and becomes focused behind the retina. | | | | which will result in clear vision. |