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A dense white opacity of the cornea.
Synonym(s): leucoma.
[G. whiteness, a white spot in the eye, fr. leukos, white]


A dense, white opacity of the CORNEA resulting from disease or injury. A leucoma near the centre of the cornea causes blindness, but vision can be restored by corneal grafting.


Dense, white, corneal opacity caused by scar tissue. A localized leukoma appears as a whitish scar surrounded by normal cornea. A generalized leukoma involves the entire cornea, which appears white, often with blood vessels coursing over its surface. Visual impairment depends on the location and extent of the leukoma. If the opacity is faint, it is called a nebula. Note: also spelt leucoma. See hyperacuity; corneal ulcer.
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