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Cataract 20220507_112035 - Coggle Diagram
Cataract 
Defination
Cataract is the gradually developing opacity of the lens or lens capsule of the eye. It is the most common cause of correctable vision loss.
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Pathophysiology
The lens, where cataracts form is positioned behind the coloured part of your eye (iris). The lens focuses light that passes into your eye, producing clear, sharp images on the retina-the light-sensitive membrane in the eye that functions like the film in the camera.
As they age, the lenses in their eyes become less flexible, less transparent and thicker. Age-related and other medical conditions caused tissues within the lens to break down and clump together, clouding small areas within the lens.
As the cataract continues to develop, the clouding becomes denser and involves a bigger part of the lens. A cataract scatters and blocks the light as it passes through the lens, preventing a sharply defined image from reaching the retina. As a result the vision becomes blurred.
Nursing care plan
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Nursing diagnosis
Disturbed visual sensory perception related to changes in sensory acuity as evidence by poor visual acuity, blurry vision, difficulty focusing.
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