What are the names of the lenses shown above? What are the indications for using lens: a. and b. ?
What are the indications for using lens:
a. and b. ?
Answer to a a. Barkan goniolens is a surgical lens. It has a blunted side allowing access for goniotomy b. Koeppe lens is a diagnostic lens and is used for examination under anaesthesia (EUA). In both examination, the patients have to be supine.