yes they are kept on sand (like children playsand ,never was a problem before). they are sort of housed together coz ive got a 3meter by 1.5 meter reptile tank but i divided the cage in 3 with wood each part with a basking lamp and evrything. they are approx 2 years old ive got the female nd male that has the eye problem around 3 months ago for free coz the owner wasnt looking after them properly he let them live in fish tank gravel and didnt clean the tanks and stuff

. and this eye thing only started 3 days ago. i think it was the new uvb light i installed 6days ago because if i put them outside they open their eyes alittle and run around and stuff and when i put them back in the tank they close their eyes again. i turned off the uvb light yesterday morning. if no improvement in a few days ill haveto take them to the vet