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“X” selections in the Glossary of Terms for
Anatomy, Physiology & Pathology of the Human Eye
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- xantholasma
- whitish fatty deposits on an eyelid or lids; may be indicative of hyperbetalipoproteinemia, a syndrome characterized by an increased level of low density lipoproteins and their associated lipid components
- X-chrome lens
- a reddish or maroon colored contact lens worn on one eye, enabling people with certain color deficiencies to estimate or determine the colors of objects
- xerophthalmia
- a dry thickened lusterless condition of the eyeball resulting especially from a severe systemic deficiency of vitamin A
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