Chapter 4 CL: NCLE EXAM REVIEW QUESTIONS & ANSWERS 100% CORRECT

C. Loose lenses - ANSWER-Small puncuated stains on the corneal epithelium when seen under an ultraviolet light are most likely caused by: A. foreign bodies B. loose lenses C. tight lenses D. epical clearance lenses D. Too tight a lens - ANSWER-After about four hours of wear, your patient complains that his eyes feel "hot". This may be an indication of: A. too small a lens B. too large a lens C. too loose a lens D. too tight a lens B. Rigid PMMA Lenses - ANSWER-Three and nine O'clock staining is generally seen with: A. soft lenses B rigid PMMA lenses C. gas permeable lenses D. fluorocarbon lenses B. to reduce the lens diameter ASK - ANSWER-A rigid gas permeable contact lens is causing a slight stagnation of tears over the carneal apex. One possible lens modification might be: A. to reduce the base curve radius B. to reduce the lens diameter C. to increase the lens diameter D. to fenestrate the lens ask