THE DISTRIBUTION OF LIGHT SCATTERED FROM THE RABBIT'S CORNEA

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Abstract
Under normal conditions the mammalian cornea is highly transparent over a broad wavelength range. In the wavelength range of the highest receptor sensibility, i.e. 5000–6000 Å, the cornea transmits more than 90% of the incident radiation intensity. Recent measurements on the rabbit's cornea show that the transmission at 6000 Å is about 94%, the residual 6% being scattered or absorbed. Under pathological conditions the scatter from different parts of the cornea may change drastically. The purpose of this work was to measure the intensity of back scattered light as a function of depth in the rabbit's cornea during changes in the intraocular pressure. It was found that the anterior half of the stroma always gives rise to stronger scatter than the posterior half. Increasing intraocular pressure usually increases the scatter from the anterior side of the stroma while scatter from the posterior side is essentially unaffected. The behaviour is in accordance with theoretical expectations.

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