Answer:
d. River blindness; microfilariae visible in the vitreous chamber
Explanation:
Trachoma is caused by Chlamydia trachomatis causing follicular conjuctivitis and also the infection of the epithelial cells hence this match is right.
Keratitis is associated with infection of deep eye tissue hence this match is right too.
In conjuctivitis there is a milky discharge from the eyes hence this match is right too.
While in the case of river blindness (onchocercosis) ,chronic microfilaria is in the cutis not vitreous chamber which is then observed in microscope.
Hence d. River blindness; microfilariae visible in the vitreous chamber is the right answer.
