Which of the following statements for persons suffering from presbyopia is/are correct ?
- 1. They cannot distinguish colours.
- 2. It usually develops with ageing.
- 3. They wear either bi-focal lenses consisting of both concave and convex lenses or progressive lenses.
Select the answer using the code given below :
[amp_mcq option1=”1 only” option2=”2 only” option3=”1 and 3″ option4=”2 and 3″ correct=”option4″]
This question was previously asked in
UPSC CDS-2 – 2024
– Difficulty distinguishing colours is associated with colour blindness (daltonism), which is a different condition and not typically related to presbyopia. Thus, statement 1 is incorrect.
– People with presbyopia often need corrective lenses to see clearly up close. Bifocal lenses have two distinct optical powers (for distance and near vision), while progressive lenses provide a smooth transition between multiple focal lengths. These are common solutions for correcting presbyopia, often combined with other refractive errors like myopia or hyperopia. Thus, statement 3 is correct.