What affects us affects cats
Introduction: I am focusing on the primary health problem suffered by this cat: inherited progressive retinal atrophy which is very serious. The first section was written by ChatGPT, an AI computer. It is well written and accurate in my view. There follows references to 3 studies. Progressive retinal atrophy (PRA) is a group of …
Introduction: I was the first person to make these comparison point-of-view images. Everyone has followed. I used our knowledge of the cat’s eyesight to work it out. Enjoy. We cannot be absolutely certain that these images are entirely accurate but they should be pretty close. Remember too that cats have poor close-range eyesight partly …
A domestic cat companion’s eyes are expressive. There are probably five basic eye configurations: Wide-open pupil i.e. a dilated pupil with wide-open eyes Narrowed eyes with a narrow slit of a pupil Half-closed eyes with the pupil in a relaxed mid-range position Closed eyes Stare Background The pupil is the aperture of the eye …
Well, the truth of the matter is that domestic cats’ eyes don’t only glow green in the dark. You will see a range of colours from green, yellow-green (cyan), orange and a reddish colour. We know the reason why domestic cats have glow-in-the-dark eyes. It’s because there’s a reflective layer behind the retina of …
This tabby cat sitting outside minding his own business with a nice collar and bell to help protect the birds has very interesting eyes because the pupils are triangular-shaped due to a congenital condition called coloboma. This is particularly noticeable in domestic cats because we know that they have pupils which vary from a …
It may interest cat owners that the optical quality i.e. the ability of the cat’s eye to resolve detail, is poorer than that of the human eye as per one study cited below and according to a second study the optical resolution of the cat’s eye is “some 3-5 times worse than that of …
People ask “Why do domestic cats have slitted eyes?” The reasons are (a) they can use the closing of the eyelid to reduce even further the light entering the eye beyond simply closing the aperture of the pupil and (b) to maximise blur behind and in front of the object focused upon to improve …
This is a much-discussed topic but it is also a complicated topic. Only fairly recently have scientists successfully grappled with understanding the science behind the anatomy of the domestic cat’s eye. In my opinion, there are three reasons why cats’ eyes contract to a vertical slit. First reason The first reason is to do …
