This research demonstrates the supplemental power effect in eyes wearing Bausch and Lomb SOFLENS, highlighting its clinical importance.
The supplemental power effect (SPE) of F series Bausch and Lomb SOFLENS ® (polymacon) Contact Lenses was determined for a sample of 54 eyes. The mean value was +0.34 D = S.D. ±0.37D, range zero to +1.00 D. A significant correlation was present between the SPE and the apical lens‐cornea bearing relationship. ( p < 0.01). The results of this study provide refractive evidence that a central lens‐cornea alignment is achieved when the posterior apical radius of the lens is about 0.5 mm flatter than the flat radius of the cornea, S.D.±0.35 D. This information is clinically useful in assessing the patient's visual response as well as the fit of the lens.
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Sarver et al. (1975) studied this question.
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