She only does it every 2 years, because she said its important to check the retina. I agree, especially because my mother had 2 retinal detachments. She checks my angles and my pressures before she does it. She also said if it sent me into an acute attack, she has all of the instruments she needs in the office to stop it. Regardless, my eyes were dilated and I had no problems whatsoever. And I know that my retina is healthy. She's young but she's conservative, and I like that. She said no reason to rush into iridotomy if not necessary because that can come with its own set of problems.