If you have an older, drafty house, it can be kind of hard to keep temperature even and comfortable from room to room. We get a lot of inquiries here at Birdtricks about how cold is too cold for our parrots. The concerns generally stem from the knowledge that many parrot species originate from warm climates.
Astigmatism in only one eye may cause lazy eye (amblyopia) if present from birth. The affected eye does not 'learn' how to see because the brain ignores the signals it receives. Amblyopia can be treated with eye patching if diagnosed early enough, before the vision pathways in the brain are fully developed.
Astigmatism is a common and usually minor eye condition that causes blurred or distorted vision. It occurs when the cornea or lens isn't a perfectly curved shape. Many people who wear glasses have some degree of astigmatism. Astigmatism belongs to a group of related eye conditions known as refractive errors.egular astigmatism is where the cornea is curved more in one direction than the other. It's more common than irregular astigmatism and can be corrected with glasses or contact lenses. Irregular astigmatism is where the curvature of the cornea isn't even across the surface of the eye.