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G K Klintworth, J W Reed, H K Hawkins, P Ingram; Calcification of soft contact lenses in patient with dry eye and elevated calcium concentration in tears.. Invest. Ophthalmol. Vis. Sci. 1977;16(2):158-161.
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Following radiotherapy for an extensive intraepithelial carcinoma of the conjunctiva and eyelid, a patient developed opacification of soft contact lenses used on the same side. Calcilm was demonstrated within the contact lenses by cytochemical methods and by energy-dispersive x-ray microanalysis. The phenomenon was associated with unilateral tear insufficiency and an elevated tear calcium level as determined by atomic absorption spectrophotometry.
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