A 60-year-old patient complains of decreased distant vision but now he does not use spectacles for near vision. The image of his ocular examination is given below. What is this type of refractive error called?
- Index myopia
Axial myopia
- Curvatural myopia
Positional myopia
The Correct Option is A
Solution and Explanation
The situation described involves a 60-year-old patient who reports decreased distant vision but no longer requires spectacles for near vision. This is indicative of a specific type of refractive error associated with aging.
In this context, Index myopia is the correct diagnosis. As people age, the index of refraction in the eye's lens can change, often due to cataract formation. This change typically causes the lens to become more myopic, meaning that the focal point of vision shifts, leading to improved near vision at the expense of distant vision clarity. Consequently, the patient might find a reduced need for reading glasses while experiencing blurred distant vision.
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