Discussion
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Presbyopia is a defect to eyes due to ageing. It is usually due to decrease in the power of accommodation of the eye.
Reason R: Presbyopia can be treated using bifocal lens consists convex lens in upper portion to facilitate distant vision and concave lens in lower portion to facilitate near vision.
In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: C
The answer is A is correct but R is not correct.
The Assertion is true: presbyopia develops with age as the eye lens loses flexibility and the ciliary muscles weaken, so the power of accommodation falls and near objects become hard to see.
The Reason has the bifocal lens upside down. In a bifocal lens the upper part is a concave lens for distant vision and the lower part is a convex lens for near vision (reading). The Reason swaps them, so it is incorrect.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development