###Rationale: Keratoconus usually have irregular astigmatism * B/L Non inflammatory ectatic condition of cornea Clinical Presentation * Young females with constantly changing power of glasses with myopia & high cylinder and irregular astigmatism SIGNS IN KERATOCONUS Munson sign Enlarged corneal nerves Oil droplet reflex( on DDO) Rizutti sign Hydrops Fleischer ring

###Answer: OPTION C IS CORRECT.
###Question: Most common type of astigmatism in keratoconus is
###Options:
A. Simple myopia
B. Simple hypermetropia
C. Irregular astigmatism
D. Regular astigmatism
