[Corneal infection in wearers of contact lenses: causes, effect on visual acuity and prevention].
This is a 5-year retrospective survey of corneal infection in wearers of optical contact lenses (OCL). 23 of the 61 patients (38%; Hasharon Hospital) with positive cultures wore OCL. Visual acuity improved in 15 (65%), no change was noted in 4 (17.5%) and there was deterioration in 4 (17.5%), as compare with status on admission. Pseudomonas aeruginosa was the most common cause of infections among OCL wearers. The improvement in visual acuity expected due to wearing OCL was affected by infections. Those after Staphylococcus albus infections had the highest rate (100%) of improvement in visual acuity and after Ps. aeruginosa the lowest rate (57.2%) of improvement, as well as the highest rate of deterioration (42.8%) found following recovery. OCL wearers are at higher risk for damage to visual acuity following corneal infection, and highly virulent infections in OCL wearers are responsible for a high risk of damage to visual acuity.
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