The correct option is D mydriasis
Dilation of pupils is termed as mydriasis. Drugs that cause mydriasis include atropine.
Constriction of pupils is termed as miosis. Drugs that cause miosis are called miotics- e.g:- acetylcholine.
The decrease in the elasticity of the lens with the advancement in age of an individual causes presbyopia.
Deposition of proteins on the lens causes cataract or safaid motia.