Word: corneas
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Salome is explaining a traditional cure for pterygium, an eye affliction common to the tropics in which vision gradually becomes obscured as a layer of tissue encroaches over the cornea. The traditional cure used by healers is leaves of Centella asiatica, a ground-hugging vine, which Salome chews into a poultice, smears on a cloth and then places as a compress on the afflicted eye for three consecutive nights...
...lens is made from a new plastic called Equalens II, which allows oxygen to diffuse freely across the lens into the eye. The cornea needs oxygen for the eye to function properly...
...cornea is the transparent membrane that covers the iris--the colored part of the eye--and the pupil. Occasionally, it becomes scraped, cut or dried out, which may lead to partial or complete loss of vision andoften causes pain...
...lens, which costs $2,500, rests on thesclera--the white part of the eye--and arches overthe cornea, creating a tiny...
Patients fill the lens--which is about the sizeof a quarter--with a lubricant, which in turnfills the space between the lens and the eye,providing lubrication to the irritated cornea andallowing the patient to see normally...