Dislocation of the lens is seen in all the following conditions except: (A) Congential Rubella, (B) Marchesani Syndrome, (C) Marfan Syndrome, (D) Homocystimuria
Answer is A. Causes of ectopia lentis (dislocation or subluxation of the lens) 

Homocystinuria      
Marfan syndrome        
Weil-Marchesani syndrome         
Ehler Danlos syndrome        
Hyperlysinemia 
Sulphite oxidase deficiency
Stickler syndrome
Trauma
 Consecutive/spontaneous (Hypermature cataract, buphthalmos, high myopia)