Biomedical subjects
Publications and source records attributed to A Rengel.
We describe an alternative glare test using a simple penlight. When the glare and decrease in vision created by the penlight were compared on Snellen chart recordings, 92% of eyes within 20/50 or less visual acuity were no longer able to see even the 20/200 Snellen figure. This penlight test is suggested as an adjunct to standard Snellen testing in the evaluation of the cataract surgery patient.
We reviewed soft toric contact lens fitting success in 100 eyes that required greater astigmatic correction than spherical power correction. We found a significantly greater rate of success with lenses having back surface cylinder correction than lenses with front surface cylinder. When back surface optics are used to correct astigmatism with soft toric lenses, the success rate approaches that obtained in random studies of soft lens fitting success.
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