Just wondering whether an overcorrected cyl of -0.50DC will cause any significant problem to the patient if he continue to use the overcorrected spectacle?
Here's the scenario:
The patient's actual refractive power is -2.00/-1.25 x 180 but the spectacle he using is -2.00/-1.75 x 180
Does this mean the patient will suffer a blur of about -0.25DS (which is 1 line loss on Snellen chart)?
If the patient refuse to change the lens, will there be any problems after the patient wear the overcorrected spectacle for long time?
Thanks!
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