Hi Dani,
I hadn't seen this message prior to my response to your other post. As such, I hadn't realized you had your tortoise for so long. Indeed, they are tough animals as shown here.
Could you please describe the habitat sold to you recently? If its a larger aquarium, again these make very poor habitats in general for tortoises. Please refer to the links I gave you for habitat, re-read this website again, and implement all the suggestions made.
Its essential that you do get your tortoise into a habitat as I described to you in my previous response and a good diet, minus the dog/cat food. I'd also have the tortoise evaluated by a vet that knows and understand in great depth tortoise and turtle veterinary medicine. Since you do describe eye problems and now here an idea of poor diet, it may well be due to a Vitamin A problem, but injections of other supplements of this vitamin aren't needed and can be fatal. Please read:
http://www.maturtlerescue.org/vatamin-a-toxicity.htm Improvement in diet will correct an deficiency present, including Vitamin A in fairly short order.
An improved environment may also lead your tortoise to a healthier appetitie as well. I genuinely hope that the 10 years of poor diet and environoment has not lead to anything critical for your tortoise, but it likely at the present time suffers from some sort of health issues.
Hi, I have had my Russian Tortious, Lance, for about 10 years now. I recieved him as a Christmas present when I was 9 years old. I feel he is very unhappy. The main food I have fed him for his whole life is peas and carrots! He avoids the carrots, but seems so enjoy the peas. Besides that- I have been a horrible owner. This complex animal was thrown at me without an idea of how to care for him. Now that I am an adult, I see he is really unhappy and want to make a change-- in his diet, habbitat, baths-- everything! He hasn't had a bath in about 5 months. And is only fed his peas once a week! I am ready to take care of this LIVE animal, and am ashamed of myself for the way things have been. Pretend I am a new tortious owner-- advice please!
He is a beautiful animal, and I truely love him. It's time to show it!
-Lances_girl aka Dani