2011 · Q48
An elderly person while trying to read a book at about 25 cm from the eyes finds the image appears blurred because of the decreasing effectiveness of the ciliary muscles and the loss of flexibility of the lens. This defect of the eyes is called
general-sciencebiology-human-body
- Amyopia
- Bastigmatism
- Chypermetropia
- Dpresbyopia
Explanation
Weakening ciliary muscles and loss of lens flexibility with age is presbyopia (NCERT Class X, Chapter 10). The source page's key misprinted this as (b); corrected against independent keys for this exact CAPF 2011 question.