DS DS/EN ISO 9337-1
DS DSEN SO 9337-1 2000-AUG-15 Contact lenses - Determnaton of back vertex power - Part 1 Method usng focmeter wth manual focusng Replaced by DS DSEN SO 18369-3
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This part of ISO 9337 describes test methods for the determination of back vertex power of both rigid and hydrogel contact lenses in air using a focimeter with manual focusing. It is applicable to finished concact lenses.