Understanding Low Vision

For a sighted person, the loss of vision representsat by people with 20/20 vision to determine
much more than a physical impairment. Maculareligibility for gov. services.
Degeneration and other low vision conditions haveA fact in the field of visual impairment is that a
contributed to a growing population of peoplefully sighted person gets 80 percent of his or her
relearning how to live. It means a loss of theirinformation about the world visually. In the case
accustomed independence: the end of driving toof a low vision person, he or she is still receiving a
work, reading the local newspaper, even simplevast majority of their sensory input by visual
pleasures like playing catch. Macular degenerationmeans. The point at which 80% becomes 50% or
products and other low vision magnifiers have5% is not something that is easily determined.
gave way to life, but not enough. Through a newAttempts to state a "percentage" of vision loss
center based at Wayne State University, afrequently fail to take into account factors other
multidisciplinary team of San Diego-areathan visual acuity. In my opinion, if an individual
researchers and clinicians has begun work theydemonstrates good visual functioning, this
hope will return a level of autonomy to theindividual's vision should be given the "benefit of
growing number of men and women who arethe doubt" when considering educational and
facing the limitations of life without sight.rehabilitation programming. Certainly it does not
To put it plainly, "Low vision is not no vision." Thedeserve to be ignored as if it were of no
definition of blindness is a visual acuity of 20/200importance.
in the best eye with best correction or a visualLow vision products help. The most common
field of 20 degrees or less. While this definitionvideo magnifier for reading is called a Desktop
sounds precise, it is often subjective. An eyeVideo Magnifier. These low vision aids feature a
specialist who uses an eye chart that does notcamera mounted over a tray on which the
measure acuities between 20/100 and 20/200material to be magnified is placed. Some have a
may give "the benefit of the doubt" and declarebuilt-in monitor and are known as "stand-alone"
the patient "legally blind" in order to give themagnifiers. Others are designed to connect to a
person access to more services. Thus, a persontelevision or personal computer.
who reads regular print with no aids risks beingHow to get more information - Ask your Eye MD
placed in the same category with people whofor a Low vision Specialist. Low vision specialists
have a far lesser degree of visual functioning.are licensed doctors of optometry who are
Why, in an environment where time is measuredtrained in the examination and management of
in milliseconds and gasoline sales are measured inpatients with visual impairments. A few of them
thousandths of a gallon, do we still considerare ophthalmologists with additional training in low
"counts fingers" a viable visual measurement?vision care. Their services do not offer a cure for
Why do we continue to cling to an out-of-datethe causes of low vision, but they do help the
standard? Unfortunately, mistakes andpatient learn how to utilize their remaining vision to
misunderstandings still occur. The definition ofits fullest potential. Low vision care does not
"legal blindness" is not even the same in allreplace the possible need for other treatments
countries. It is simply a random designation arrivedsuch as laser, medication, and surgery.