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To the Editor.—
During my 56th year, a posterior subcapsular cataract developed in my left eye. I had noticed only some loss of visual acuity and some photophobia earlier, but as the cataract developed, a peculiar phenomenon occurred that has led me to write this letter. While performing many urinalyses, I had become annoyed that the binocular microscope had visible "dirt" somewhere in the lenses, which I tried to eliminate with various cleaning efforts. I finally sent the microscope out for professional cleaning and when it came back, the alleged "dirt" was still present and I was quite annoyed. Then it struck me that I was not seeing this phenomenon in the scope, but in my eye instead. Under high-power magnification, backing my eye 15 to 20 cm from the lens, I could clearly discern the actual cataract, and it was not fuzzed or fogged by light as other items
Thomas DR. Visualization of Cataract. JAMA. 1982;248(16):1973–1974. doi:10.1001/jama.1982.03330160025012
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