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TO Thomas, S Yin, K Kolanda, J Li, TW Gardner, TW Gardner, TW Gardner, TW Gardner, TW Gardner; The Effect of Light Scatter on the Appearance of Retinal Detachments . Invest. Ophthalmol. Vis. Sci. 2002;43(13):621.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To investigate the cause of the gray appearance of the detached retina. Methods: The effects of ex vivo bovine retinas and Scotch tape on light scattering were predicted on the basis of mathematical modeling and examined empirically on an optical bench. Images were collected with a CCD camera connected to a microcomputer with an image grabber. The clarity of the image was calculated as the standard deviation, s. Results: Calculations predicted a Gaussian distribution of laser light scattering with increased diffusion with increasing distance from the medium to the target. The image clarity, s, increased rapidly in the first 50 mm of separation of the retina and tape from the test target and the rate of increase diminished thereafter. Removal of the outer retina with an excimer laser improved retinal transparency. Conclusion: The data explain that the gray appearance of the detached retina results from light scattering. This phenomenon likely results at least in part due to the irregular outer retina surface at the level of the photoreceptors.
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