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John E. Holte, OD
Cannon Falls, Minn

Arch Ophthalmol. 1988;106(6):723.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.

—I read with interest the excellent article¹ on the Visiscreen 100 (Medical Sciences Corp, Wedowee, Ala) in the November 1987 issue of the ARCHIVES. I began using a similar technique in 1976 for the purpose of evaluating ocular alignment in infants. With color transparencies, I use a 500-mm catadioptric telephoto lens attached to a 35-mm camera by extension tubes at a distance of 2.4 m, with the flash as close as possible to the top of the lens. I measure the lateral position of the corneal light reflex for each eye, relative to the pupil center, assigning nasal displacement positive numbers and temporal displacement negative numbers. I use a projection distance so that the magnification is approximately x4. By measuring the position of the projected corneal reflex to the nearest 0.5 mm, I measure the position of the reflex to the nearest 0.12 mm (0.5 mm . . . [Full Text PDF of this Article]

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