I accidently found this brilliant iPhone application called Eyephone. It gives distance vision testing Es, Near vision checking charts,Color vision charts (34 plates with interpretation just a flick away), an Amsler Grid and a Pupil size Gauge. At least in my setting, refractionists do the refractions and I just occasionally do it myself and most of the time it is for near vision a day or two after cataract surgery. Many times, just can't find the right charts when we need them. This is going to be very useful aid for me.
Sarbjit
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