Optometry and vision science : official publication of the American Academy of Optometry · 1989
Protein and elemental analysis of contact lenses of patients with superior limbic keratoconjunctivitis or giant papillary conjunctivitis.
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Barr J T, Dugan P R, Reindel W R, Tuovinen O H
Аннотация
Soft contact lenses worn by six patients (12 eyes) diagnosed as having contact lens-induced superior limbic keratoconjunctivitis (SLK) and from four patients (5 eyes) with giant papillary conjunctivitis (GPC) were analyzed for protein concentration and for elemental content. Fifty-five percent water content, ionic lenses containing methacrylic acid had high protein concentration. Calcium was not a common element found on protein-coated lenses. Sulfur and iron were found on used and new lenses. An elevated level of mercury was detected in one gray lens that had been disinfected in thimerosal-preserved saline with a high heat disinfection unit by a patient with SLK.