It is one word.
No. Eyesight is a noun. There is no particular adjective form, as most of the words are based on the word "vision."
Two-toed sloths are nocternal. So yes two toed sloths have good eyesight.
stealth and eyesight
True, but rhinos do have particularly good eyesight.
Pandas have poor eyesight.
Vitamin A is essential for eyesight.
360 degree eyesight.
Lady's eyesight
no that's not possible
Retinopathy from diabetes eyesight recoverd
my eyesight is very bad
While he is still alive? "Either my eyesight fails or thou lookest pale".