Calculations reveal significant errors in lens power estimation in hydrogel lenses, highlighting improved methods.
Calculations show that there can be a significant error in the estimated power of a hydrogel lens when standard techniques are used to arrive at the lens power by means of a lensometer and a wet cell. Ray‐tracing procedures were used to produce graphs which provide more accurate correction factors so that the lens power can be determined with improved precision.
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Yumori et al. (1981) studied this question.
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