In his blog, Doug Rett, OD, FAAO, digs deeper into questions every eye doctor has had at one point in his or her career. He sees patients and works with students and residents at the optometry clinic for the VA Boston Healthcare System and will use his blog to bring the teaching points he sees in clinic to a larger audience. Contact him at doctorrett@gmail.com.

Disclosure: Rett has no relevant financial disclosures.

BLOG: Why does hydroxychloroquine retinopathy look like a bull’s eye?

April 11, 2019

Much has been written about screening for hydroxychloroquine toxicity. In 2016 there was a major paper from the American Academy of Ophthalmology revising its…

BLOG: How does anemia cause retinopathy?

March 11, 2019

Picture two patients; you see them back-to-back. The first is an 82-year-old man with a lot of vascular diagnoses for which he’s taking a lot of medications. The…

BLOG: How do eplerenone and spironolactone treat CSCR?

January 21, 2019

In December, Primary Care Optometry News quoted me in an article about central serous chorioretinopathy. The article talked about a lot of facets of the disease, and…

BLOG: Why do we sneeze at the sun?

December 18, 2018

Roughly 25% of Americans have a tendency to sneeze when exposed to a bright light. Does this sound crazy to you? Or do you think that number is too low? The photic…

How does neurotrophic keratitis happen?

November 6, 2018

Because my last post discussed herpes zoster ophthalmicus and the vaccine recently developed to fight shingles, I thought we could continue the theme this month and…

BLOG: What’s the role of the eye care provider in preventing shingles?

September 6, 2018

I work in a veteran’s hospital, so I see a lot of older patients. Recently the emergency room called up to the eye clinic and asked us to see a 75-year-old patient…

BLOG: Is there a laterality preference in any ocular disease?

August 6, 2018

For the longest time, I’ve tried to find an eye disease that happens more in the right eye than in the left eye (or vice versa). Artery occlusion, episcleritis…

BLOG: Why does band keratopathy happen at 3:00 and 9:00?

July 6, 2018

I recently saw a patient with a phthisical eye due to multiple vitrectomies and a chronic retinal detachment, and the examining intern pointed out the band keratopathy…

BLOG: Does anti-VEGF work for the cornea?

June 1, 2018

In the retina field, it seems like there is nothing for which anti-VEGF injections cannot be used. Originally designed to limit the vasculature supply of tumors in cases…

BLOG: How does IOP change when we sleep?

March 28, 2018

Last month we talked about how long it takes for IOP medications to wash out of a patient’s system. We found that some medications washed out faster during daytime…