1. Which lens is used to correct myopia?
✅ Myopia is corrected using a concave lens.
2. Which defect is caused due to loss of flexibility in the eye lens with age?
✅ Presbyopia occurs due to aging and stiffening of the eye lens.
3. Which defect is caused by an irregular shape of the cornea?
✅ Astigmatism is due to irregular curvature of the cornea.
4. Which lens is used to correct hypermetropia?
✅ Hypermetropia is corrected using a convex lens.
5. In myopia, where does the image form?
✅ In myopia, the image forms in front of the retina.
6. What type of lens is used for astigmatism correction?
✅ Astigmatism is corrected using cylindrical lenses.
7. What kind of lens is included in bifocal glasses?
✅ Bifocal lenses combine concave and convex lenses for near and distant vision.
8. What is the main cause of hypermetropia?
✅ Hypermetropia is usually caused by a shortened eyeball.
9. Presbyopia is most commonly seen in which age group?
✅ Presbyopia typically affects older adults due to aging of the eye lens.
10. Which of these is a symptom of astigmatism?
✅ Astigmatism causes general blurry vision due to distorted focus.
11. What is the main function of the retina?
✅ The retina converts light into nerve signals sent to the brain.
