Our equine vet, Dr. Bill Brown, came out this afternoon to give the horses their fall shots and do some procedures. First we did the shots and gave them their wormer while we were at it. Then we turned to the procedures.
In the first photo, Bill is testing the intraocular pressure (or IOP) on Cactus Jack, who came to us blind from glaucoma. My layperson's explanation of glaucoma is that the fluid produced inside the eye stops draining out normally, which causes the pressure inside the eye to increase, which then causes loss of vision.
Bill is using a device called a Tono-Pen, which is very lightly pressed against the center of the eyeball. It can register the pressure inside the eye. Most vets do not have this device because it costs $3,000 to purchase new, and few of them see enough glaucoma cases to justify the expenditure.
Our small animal vets in Helena have a Tono-Pen, however, and we were very familiar with its use because of the number of glaucoma cases we have in our dogs. But Bill did not have a Tono-Pen in his practice.
So when Cactus Jack first arrived, it drove us crazy that we couldn't measure his IOP. Without knowing what it was, we couldn't tell if it was getting worse, or how much discomfort he might be in.
We decided to write to Medtronic, the big medical device manufacturer who makes the Tono-Pen, and ask if they would donate one to the sanctuary. We figured the answer would be 'no,' but it couldn't hurt to ask. To our astonishment, Medtronic quickly offered to donate a refurbished one -- these cost about $1,500 -- and two weeks later, it arrived via UPS.
The good news from today's test is that Cactus Jack's IOP has dropped significantly ... from 80 units of mercury (don't ask, I can't explain) to the mid-20's. His eyes no longer bulge like they used to. It has not made a difference in his vision, but it is a sure sign his eyes are very comfortable now.
In this photo, Bill is taking aspirates of an enlarged thyroid from our blind Appy named Scout. I discovered this lemon-sized lump in his throat earlier this week, while I was hugging him. (He's a huggable horse. What can I say?) Bill is sticking a needle into the mass, and pulling cells out to send in for pathology tests.
And here is what sweet old Scout looked like from the other side. I took this just as the needle was going into his throat. Bless his heart, he just stood there ... not very happy about it, but quite stoic.
(Click on photos for larger image.)