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Low Vision Aids

1. Q: what is Low Vision

A: Low vision is a visual condition that affects millions especially seniors. Simply, it is a degree of visual impairment that cannot be adjusted completely to normal vision, even with the use of traditional eyeglasses or contact lenses (According to WHO: a man with low vision will have best corrected vision of less than 20/60 in the better eye).

In other word; Low vision could be defined as best corrected vision which is insufficient to do what your patient wants to do.

2.Q: Are there a difference between blindness and low vision?

A: Low vision should not be confused with blindness. Low vision patients still have some ability to see and the condition can often be improved under the care of a low vision specialist who will prescribe aids to assist a low vision patient.

3. Q: What are common symptoms o f low vision?

A: Although the degree of impairment varies, from one individual to another, and may or may not affect both eyes, Low Vision most often is a loss of central or reading vision and loss of side or peripheral vision. Other symptoms of low vision may include reduction or loss of color vision, difficulty in adapting , from light to dark environ­ments, and reduction of the ability to, focus.

4.Q: What are causes of low vision?

A: A variety of disorders may lead to low vision including birth defects and injury, disease (particularly diabetes, glaucoma, inoperable cataract), trauma and aging. The most common condition that causes low vision in seniors is macular degenerat­ion . Simply; this condition results from a breakdown of the macular cells that causes difficulty with reading and close work Vision.

5. Q: Is there a special examination for the low vision patient?

A: The "low vision examination" should be much more extensive than a regular eye examination. Often the initial examination will last more than one hour (or can be done in two visits). Low vision doctor will need to ask many lifestyle questions in order to determine the demands of your patient vision.

r The amount of remaining vision must be carefully, determined using specialised charts which are closer to the patient, and Have more gradations than the standard projected chart. The patient is instructed to use peripheral vision during testing, since central vision is often damaged.

r Then the amount of magnification needed to do the desired tasks must be determined for far tasks like driving, near tasks like reading and intermediate tasks like computing..

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