a. What is the retinoscopic finding if the optician, working at
distance of 2/3 metre, find neutral motion
in the 1800 meridian
with +2.25 DS and in the 900
meridian with +3.00DS (expressed
plus or minus cylinder)?
b. What would be the effect of the retinoscopic findings (either
too much plus
or too little plus) of:
i. patient looking at the
examiner's face rather
than the distant
ii. refracting close up to the patient?
iii. refracting too far away from the patient?