Which among the following eye defect is characterised by drying and wrinkling of conjuctiva?

The correct option is D Xerophthalmia
Xerophthalmia is an eye defect caused due to the severe deficiency of Vitamin A. In this condition, the lining of eyelid and eyeball, known as conjuctiva dries out, thickens and begins to wrinkle. These initial symptoms leads to other defects. Other symptoms of this disease include night blindness, bitot spots, etc.