Exam (elaborations)
NCLE Study Guide Part 3 out 4 with Complete Solutions!
- Module
- Institution
The FDA (Food and Drug Administration) - ANSWER-? classifies lens material by how much water is in it and by the electronic charge. The water is either low or high, and percentages are given. The electronic charge is indicated with ionic or non-ionic. The materials are in four groups as follows: ...
[Show more]