Search Eye Pictures

Wednesday, June 19, 2019


Diabetic retinopathy has been the number one cause of preventable blindness in the United States.  Fortunately treatments have improved through the years.

The pictures below show patients with moderate non-proliferative diabetic retinopathy.  There are various types of hemorrhages.  Cotton wool spots are areas of focal oxygen deprivation.  microaneurysms are outpouchings of capillaries that can leak.  Exudates are the leakage of blood serum from capillaries.

If the oxygen deprivation is severe enough, new blood vessels (neovascularization) will begin to form in the attempt to reperfuse the retinal tissue.  However, these new blood vessels are very leaky and certain contents from the blood destroy the retina, thereby causing severe vision loss.   When new blood vessels grow, retina specialists often will perform pan-retinal photocoagulation, or PRP.  PRP selectively destroys much of the peripheral retina, thereby decreasing the oxygen deman in the eye.  This decreased oxygen demand allows the most important central part of the eye to receive enough oxygen to prevent neovascularization.   The photo below shows the laser scars that result in the peripheral retina from PRP.

Thursday, June 13, 2019


This picture shows laser scars around the tear in the retina that would have ended up as a detached retina with accompanying permanent loss of vision.


Asteroid hyalosis is small white opacities that float in the eye.  They uysually occur in one eye more than the other, as is the case with the picture below.  It occurs in humans, dogscats, and horses. Ocular asteroids are different from the more common typical vitreous floaters. The cause of asteroid hyalosis is unknown, but it has been associated with diabetes , high blood pressure, and high cholesterol. The asteroid bodies are made up of calcium and phospholipids.  While asteroid hyalosis is quite impressive, surprisingly most patients never notice them in their vision.  They cause no problems, but may interfere with visualization of the retina during eye exams. Treatment of asteroid hyalosis is unnecessary unless better visualization of the retina is needed, such as in cases of diabetic retinopathy.  

Wednesday, June 12, 2019


The image above is the treated hole with laser.  The image below is the original hole. 

Friday, June 7, 2019


Branch retinal artery occlusion in a 54 year old male.  It caused retinal neovascularization which then lead to a vitreous hemorrhage.  

Tuesday, June 4, 2019


The image below displays higher concentrations of pigment in the retinal pigment epithelium layer.  They have the appearance of "bear tracks" and are harmless.


A patient presented after a scuba trip with the following presentation:

Failure to equalize the mask on a dive descent will result in suctioning of the mask, which will cause blood vessels to enlarge and leak, resulting in the bleeding and swelling.  This is called "mask squeeze".  The bleeding is harmless and will resolve on it's own within weeks.