SOME COMMON ARTIFACTS IN THE RETINA

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Abstract
Two types of artifacts in the retina are described and characterized histochemically. One is called lipid crystals and occurs in eyes which have been removed post mortem and subjected to prolonged formalin fixation. The other is called intrusion of myelin into the retina and peripapillary region. The lipid crystals were found exclusively in the retina and appeared to be derived from the reticular layers. They had the tinctorial and solubility characteristics of phospholipid. They were found in all the eyes which had been subjected to prolonged formalin fixation. Intrusion of myelin into the retina and peripapillary portions of the preretinal and subretinal space was found commonly in eyes with normal optic nerves which, at the time of enucleation, had been cut close to the globe.

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