A 17 yrs old girl with keratitis and severe pain in the eye came to the hospital and acanthamoeba keratitis was suspected.The patient gave the history of following 4 points.Out of these which is not a risk factor for acanthamoeba keratitis.

A 17 yrs old girl with keratitis and severe pain in the eye came to th

1.	A 17 yrs old girl with keratitis and severe pain in the eye came to the hospital and acanthamoeba keratitis was suspected.The patient gave the history of following 4 points.Out of these which is not a risk factor for acanthamoeba keratitis.
A.	Extended wear contact lens
B.	Exposure to dirty water
C.	Corneal trauma
D.	Squamous blepharitis
Answer» E.