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CBSE Class 12 Biology Opthalmic-ii Sample Question Papers 2027

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Frequently Asked Questions

What is cataract and how is it treated?

A cataract is a clouding of the lens that impairs vision. It can be treated with surgery where the cloudy lens is replaced with an artificial one.

How do corrective lenses improve eyesight?

Corrective lenses like glasses or contact lenses adjust the focal point on the retina by altering how light rays enter the eye, thereby improving clarity.

What role does nutrition play in maintaining eye health?

Proper nutrition supports eye health; nutrients like vitamin A, C, E, zinc, omega-3 fatty acids, and lutein help protect against age-related conditions such as macular degeneration.

What are some modern technologies used in ophthalmology?

Technologies such as LASIK surgery for correcting refractive errors, OCT scans for detailed imaging of retinal layers, and intraocular lenses for cataract surgery are commonly used.

How does diabetes affect eye health?

Diabetes can lead to diabetic retinopathy where blood vessels in the retina become damaged, potentially causing blindness if not managed properly.