Station eight
(5 minutes allowed)
Give the following prescriptions, assuming your working distance is 2/3 metres.

a. RE: With the streak at 900 a +2.25 sphere neutralized the reflex; with the streak at 1800 (leaving a +2.25D sphere in place) a -2.50 D cylinder neutralized the reflex? 

b. LE: With the streak at 450 a +2.00 sphere neutralizes the reflex, with the streak at axis 1350 a -1.00 lens neutralizes the reflex?



To station 1
Return to mock examination 22