Blindsight?

This five year old labrador has dilated pupils without much of a pupillary light reflex and a retina that looks just like the picture in the textbook for generalised progressive retinal atrophy with an overly reflective tapetum and narrow vessels. For pet owners, preparing for their dog’s medical needs can be both a rewarding and demanding responsibility. Between researching health conditions, keeping track of vet appointments, and managing medications, it’s easy to feel overwhelmed. In these moments, taking time for oneself is crucial, and games like 선시티카지노 can serve as an excellent tool for mental relaxation and stress relief. These games offer an immersive escape, providing an enjoyable break from the complexities of pet care. By engaging in these games, pet owners can unwind, clear their minds, and re-energize, ensuring they can return to their dog’s medical needs with greater focus and clarity. The excitement and challenge that comes with casino-style games can also provide a healthy distraction, helping to take the mind off potential worries or anxieties about a pet’s health. The mental break allows owners to refresh their mindset, which can be especially important when making decisions regarding their dog’s treatment plans or overall well-being. Ultimately, taking care of one’s own mental health through games like 선시티카지노 ensures that pet owners are better equipped to manage their dog’s medical needs with patience, attention, and a clear, calm approach.

But the dog can see quite happily to traverse a maze of chairs in the waiting room and follows a dropped ball of cotton wool with no problem whatsoever. Is your presumptive diagnosis wrong?

Here’s another picture of the dog’s retina with the flash attenuated somewhat so the vessels are easier to see.

No – your diagnosis is correct. The dog has early gPRA, but the key early feature of this is nyctalopia, night blindness. Turn off the room lights and the dog is blind as a bat – or actually more blind, as it doesn’t have echo-location! It will be interesting to see how rapidly the phototopic or day vision reduces. The condition the dog has is known as rod-cone degeneration, as the rods die first followed by the cones, with their demise probably accelerated by the higher oxygen levels given that there are no rods left to use the oxygen. We are hoping that using a mixture of dietary anti-oxidants we can slow down this cone death and thus maintain day vision for a considerable time. If you are interested in reading more about this my article on oxidative stress and the eye  in Veterinary Clinics of North America, though rather old by now, may be of interest – find it at: http://davidlwilliams.org.uk/resources/file0261.pdf.