Wednesday, June 25, 2008

Slit Lamp - Keratic Precipitates

This is a photograph of Keratic Precipitates located on the inner endothelial layer of the cornea. This patient had a bad reaction to silicon oil used after a cataract removal and these precipitates formed.

KERATIC PRECIPITATES: Inflammatory cells and white blood cells from the iris and ciliary body that enter the aqueous and adhere to the innermost corneal surface (endothelium).

What is seen where the lens should be is not actually a cataract, because that was removed, it is actually part of the reaction to the silicon oil building up anterior the lens.

Wednesday, June 18, 2008

Slit Lamp - Post Traumatic Scleritis

Another Slit-lamp image taken of a patient with Scleritis after trauma. Most patients we shoot on the Slit-lamp are photo-phobic (extremely sensitive to light) because of their anterior pathology, and it is not often you have a cooperative patient. They always pull away after every shot and complain. For this patient, we had to have three people in the room; myself, taking the photos, and two technicians forcing the patients head forward and pulling the eyelids open.
Also, sometimes the doctors will come in the camera room and want to watch, which was also the case for this patient, who was to immediately go into surgery after I finished the photographs. No pressure.

SCLERITIS: Inflammation of the Sclera

Slit-Lamp Camera:
Nikon D100's

Slit Lamp - Pterygium

Below is an image of what is called Pterygium. The "P" is silent.

PTERYGIUM: An abnormal, wedge-shaped growth on the bulbar conjuctiva, often related to sun irritation.

Slit-Lamp Camera:
Nikon D100's

Tuesday, June 10, 2008

Macular Nevus

This is a nevus located beneath the macula in the choroid layer of the eye.

NEVUS: (Mole) Small, flat, usually pigmented benign tumor made up of specific cells called nevus cells; found in skin and eye tissues.

Zeiss fundus camera

Monday, June 9, 2008

The Operating Room: DSEK

This is a shot taken in the operating room during a DSEK procedure.

Descemet's Stripping Endothelial Keratoplasty

This procedure is done to replace and repair the tissue of the cornea. Instead of a corneal transplant that damages many endothelial cells and takes a long time to recover from, this procedure takes a donor cornea endothelial layer and places it through a small incision, allowing less recovery time as well as a lot less damage to the corneal cells. The following image shows the step by step process, from the donor cornea in the first image, to the placement and unfolding of the donor corneal layer, to the injection of an air bubble to hold the graft in place for proper healing position.

*This same patient had a cataract removed and an IOL (Intra-Ocular Lens) inserted just minutes before the DSEK procedure.

Nikon D70x
105mm micro w/ PN-ll extension tube
F/16 w/ ringflash 1/2 power

Cataract Composite

This image is a composite of 4 images taken on the slit-lamp camera. Each separate image is called a red-reflex image, because you are lighting the posterior of the eye, and focusing on the anterior lens, so the cataract can be viewed somewhat like a silhouette. So two of the photos were at the nearest plane of sharp focus, while the other two were at the farthest plane of sharp focus. I used Photoshop to mask them together to show the full depth of the cataract.

Definition of Cataract: Opacity or cloudiness on the crystalline lens, which may prevent a clear image from forming on the retina.

Slit lamp: Nikon D100's
ISO: 200
F/22 w/ constant flash

Friday, June 6, 2008

Pyogenic Granuloma

This is an external shot of a pyogenic Granuloma. A breakdown of what exactly this means:

Pyogenic: Producing Pus.
Granuloma: Dense collection of cells consisting of various inflammatory types.

THEREFORE: This is a growth of epitheliod (skin) cells, filled with pus.
Nikon D70x
60mm macro
F/22 @ 1/80


Oh blogger where art thou? It's been about three months since I have even looked at one of these bad boys. I decided today that I will begin posting again due to the completion of my biology classes as well as the completion of my college admissions stuff. So in other words, I'm bored.
Most of what I'll be posting from now on is likely to be relative to my internship at Wake Forest University Eye Center as an Ophthalmic Photographer. I am not going to go into depth describing what is in these images, but only simple explanations for easy understanding. I hope everyone enjoys them.
This first image is a fundus(the inside) image of my own eyes. These were taken by David Miller, a co-worker of mine and a graduate of RCC. The photos are in sequence, right eye, left eye. This is also referred to as OD(Ocular Dexter), OS(Ocular Sinister).