12 Ruth is 78 years old and recently reported to her ophthal

12 Ruth is 78 years old and recently reported to her ophthalmologist that she has developed some changes in the way she sees colors. Which of the following age-related changes to the eye might best explain her experience? A The corneas in her eyes are changing in their thickness. B The lenses in her eyes are beginning to yellow c The irises in her eyes are losing their elasticity. D The retinas of her eyes are losing photoreceptors.

Solution

ANSWER=

The retinas of her eyes are losing photoreceptors

explaination = our vision deteriorates with age & virtually every measure of visual function shows declining performance with increasing age including decline in visual acuity

Retinal pigment epithelium is vital for integrity of rods & cones

shows with age increased pleomorphism ,decrease in number of cells in posterior pole,decreased melanin content & decreased volume of cytoplasm

There is decline in visual functions

1] decrease visual acuity

2] declining sensitivity of visual field

3] decreased photoreceptors cells