In Reply.
—The only statement with which I agree is that the driver with binocular vision, while looking through a telescope with one eye and a spectacle correction with the other, sees no scotoma in a binocular field of vision. However, it is unreasonable to prescribe a telescope for only one eye in the patient with binocular vision; diplopia results when looking through the telescope.
Even though it is self-evident that an individual with binocular vision wearing a telescope before one eye and a spectacle correction before the other will experience diplopia, I experimented on myself out of curiosity. My corrected vision is 20/20 OU, and I have binocular vision while looking through the x3 bioptic telescopic spectacle (BTS) with both eyes.
Experiment 1.
—I wore the x3 BTS before either my dominant or nondominant eye while wearing the spectacle correction before the other eye. I learned that I had
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