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Clinical Prof. Noticed Problems with ReNu Two Years Ago

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Christine Sindt, a University of Iowa clinical assistant professor of ophthalmology noticed a disturbing problem with ReNu contact lens solution after doing her own study of the product. “I always like to test the new products – test drive them, so I can develop an opinion,” Sindt said.

Contact lenses sat soaked in three different solutions overnight. The following day, Sindt examined five volunteers from her office for corneal staining, the presence of dead cells on the eye. Volunteers then wore a pair of the contacts for one to two hours and were examined again.

Sindt, also the director of UIHC’s contact-lens service, said the lenses soaked in MoistureLoc produced an “unusual” amount of staining, named because of a dye’s adherence to dead cells.

She immediately expressed her concern with Bausch & Lomb’s public-relations director, who told her he was certain the solution had undergone appropriate studies and had passed. When the director, Fred Edmunds, said the company had not conducted tests that could measure corneal damage over time, she urged him to do so.