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Previous Volume 350:2525-2526 June 10, 2004 Number 24 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: In a review article on diabetic retinopathy (Jan. 1 issue),¹ Frank stated that the mechanism for the effect of panretinal, or scatter, laser treatment on diabetic retinopathy is unclear. Two references, from 1978 and 1982, were cited to support this conclusion.

The review article ignores a substantial literature on the physiological mechanism of retinal laser treatment for proliferative diabetic retinopathy and diabetic macular edema, reviewed elsewhere.² These works confirm that scattered laser photocoagulation increases the oxygen tension in the inner retina,³ alleviates hypoxia,⁴ and affects the hemodynamics of the retinal circulation.⁵ These studies have been carried out . . . [Full Text of this Article]

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