This is the corneal topography of
a patient pre-cataract surgery.
a. What does the picture show?
b. The patient's refraction can be corrected
with -3.00DS to 6/6.
Give a reason why he does
not require cylindrical correction.
c. A temporal clear corneal incision was performed
patient has deep set eye.
What is the effect on:
i. the cornea tissue
ii. the cornea astigmatism