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Scoring of eye appearance according to cageside observations. (A) Normal mouse eyes that were open more than 75% received a score of 0. (B) Mouse eyes that were open 50% to 75% yielded a score of 1. (C) Mice whose eyes were open 25% to 49% received the score of 2. (D) Mouse eyes that were open less than 25% were scored as 3. This image is reprinted from reference 26 with permission.
