Hi everyone!
I've been struggling with this question in a review exam I have and would appreciate greatly your help... what do you think, here it is:
A patient is to be fitted with an RGP lens in one eye.worn (4 marks)
Preliminary findings are:
Ks 40.86 (8.26) @ 145
43.61 (7.74) @ 55
oc rx +0.25/-1.25x45
a) Based on these findings determine the amount and axis of the residual cylinder
b) A spherical trial lens with BOZR of 8.05 mm and BVP of +1.00 is placed on the eye.
(i) Calculate the resultant tear lens power when this spherical trial lens power is
placed on the eye (3 marks)
(ii) What is the expected sphero-cylinder over refraction when this spherical lens is
thanks a lot~~
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