###Rationale: "Pseudomonas aeruginosa is the most common organism encountered in contact lens-related acute keratitis and corneal ulcer".
-Holland & Mannis
Acanthamoeba is the 2nd most common cause.

###Answer: OPTION C IS CORRECT.
###Question: A soft contact lens users have corneal keratitis cause is –
###Options:
A. Acanthamoeba – ulcer
B. Erosion of cornea
C. Pseudomonas infection
D. Herpes infection
