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: 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…

BLOG: How long is the washout period for glaucoma medication?

February 21, 2018

Last week an intern and I were managing an older patient who was a low-risk suspect for glaucoma. He had been treated for about 5 years with a prostaglandin analogue…

BLOG: What is a conjunctival membrane made of?

January 31, 2018

I recently saw a patient with a nasty case of epidemic keratoconjunctivitis. His right eye was quite red with significant lid edema, crusting of the lashes, follicular…

BLOG: Why do we use glue on the eye?

December 27, 2017

If you Google “ocular Super Glue” you mostly get entries about people accidentally instilling superglue into their eyes. It’s usually kids playing with…

BLOG: How do amniotic membranes work?

November 27, 2017

The fact that we, as eye doctors, can use amniotic membranes in our daily practice is a pretty amazing testament to how far medicine has come in the 21st century. But…

BLOG: Why does orbital fat prolapse?

October 26, 2017

Say you’re doing binocular indirect ophthalmoscopy on a patient and you want to examine the inferior retina. You ask him to look down, you pull up on his upper…

BLOG: If my patient has a hemianopia, will there be OCT changes?

September 26, 2017

Most of us have seen patients with visual field changes from stroke, and we confirm a homonymous hemianopia (HH, or hemianopsia, if you prefer; as far as I can tell…

BLOG: How the lamina cribrosa changes with glaucoma – part 2

July 26, 2017

Last month we discussed enhanced depth imaging and its ability to image the lamina cribrosa, specifically in patients with glaucoma. This month we’ll get into a…

BLOG: How does the lamina cribrosa change with glaucoma?

June 21, 2017

In my clinic, we see a lot of glaucoma (and glaucoma suspect) patients, and we are always running retinal nerve fiber layer optical coherence tomography on them. This…

BLOG: How do androgen and estrogen affect dry eye? (part 2)

May 12, 2017

Last month we learned how androgen and (to a lesser extent) estrogen levels can influence dry eye. specifically, how a decrease in systemic androgen levels can lead to…