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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- UGC NET
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Match the following two sets. Set-I consists of terms related to refractive disorders, retinal and optic nerve problems.
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(a) Astigmatism is a common vision condition that causes blurred vision. It occurs when the cornea (the clear front cover of the eye) is irregularly shaped or sometimes because of the curvature of the lens inside the eye.
(b) Glaucoma is a disease of the eye in which fluid pressure within the eye rises; if left untreated, the patient may lose vision and even become blind. Glaucoma is relatively common, especially in older adults and can cause damage to the optic nerve if left untreated.
(c) Hyperopia, or farsightedness, is a common vision problem, affecting about a fourth of the population. People with hyperopia can see distant objects very well, but have difficulty focusing on objects that are up close.
(d) Retinitis pigmentosa (RP) is a group of rare, genetic disorders that involve a breakdown and loss of cells in the retina-which is the light sensitive tissue that lines the back of the eye. Common symptoms include difficulty seeing at night and a loss of side (peripheral) vision.