Abstract
Introduction Soft contact lenses have now been fitted for several years and because of their initial comfort, some asymptomatic patients may not return for follow-up visits, with the possible danger of ocular changes going unnoticed. It is the purpose of the present communication to report on a retrospective study of the long term effects of soft contact lens wear on the corneal metabolism and endothelial morphology. Three methods were chosen to this effect: pachometry, aesthesiometry and endothelial macrophotography. The first two measurements have been the subject of several reports (Mertz & Touch, 19771, Millodot, 19742 ) but our particular attention will concern the influence of the lens oxygen transmissibility on these measurements. Further, the only known endothelial studies of soft contact lenses (Zantos & Holden, 19773 ) deals with transient effects and our object is to verify whether these changes are also long term effects, or if similarly to hard contact lens wear (Guillon, 19804), soft lenses do not affect the endothelial cell death rate.
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