My red ear slider's eyes are closed and he won't eat. What's wrong?
Most eye issues in red eared sliders is related to a vitamin A deficiency. This deficiency is caused by improper diet. You must correct his diet in order for him to get well. You also need to make sure everything else is correct - water temperature, basking temperature, cage size, etc.
( https://www.petcoach.co/article/vitamin-a-deficiency-signs-diagnosis-treatment-and-preventi/ )
Please realize that reptiles have a very slow metabolism. It takes a long time for them to show illness and subsequently, a long time to get well. So, this is not a quick fix. It may take months before he is back to normal.
Be careful over-supplementing with Vitamin A, more is not better. You can cause an overdose if you give too much. That is why it is best to work with your vet. It sounds like they are on the right track with treatment.
Updated on September 23rd, 2025