Demonstrates reduced corneal edema in hard-to-fit patients using ultra-thin lenses, suggesting enhanced oxygen delivery benefits.
A study was conducted to test the hypothesis that a more favorable corneal‐edema response for hard‐to‐fit patients might be expected from ultra‐thin Bausch & Lomb Soflens® (polymacon) contact lenses than from standard‐thickness lenses because of the additional oxygen reportedly available to the cornea. Corneal edema was monitored by measuring changes in corneal thickness over 6 hr of lens wear with an electronic pachometry assembly. Statistical analysis showed significantly less edema for a group of hard‐to‐fit patients wearing ultra‐thin lenses than for a group of successful patients fitted with standard‐thickness lenses.
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G W Mertz (1978) studied this question.
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