Vision Impairment And Blindness Symptoms

VISION IMPAIRMENT AND BLINDNESS

DESCRIPTION

Visual impairment is a decrease in the ability to see to a certain degree that causes problems not fixable by usual means such as glasses. Blindness is the state of being unable to see due to injury, disease or genetic condition

Symptoms –

Not be able to see objects at a distance, like on a whiteboard or blackboard.

Risk factors -

Uncorrected refractive errors

Cataract

Age related macular degeneration

Glaucoma

Diabetic retinopathy

Corneal opacity

Trachoma

Diagnosis and test –

The Snellen test is also known as the visual acuity test. Usually a chart called the Snellen’s chart is used. It contains progressively shortening random letters and numbers and is placed 6 meters away from the patient. The patient is asked to read the letters with each eye separately and both eye together

Treatment –

Eyeglasses

Contact lenses

Eye drops

Medications

Surgery