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Additionally, nicotine can cause constriction of the blood vessels, reducing blood flow to the eyes and making them more vulnerable to damage and disease. [30] It is recommended that smokers exhibiting signs and symptoms of retinopathy engage in smoking cessation to improve their quality of life.
Collie eye anomaly (CEA) is a congenital, inherited, bilateral eye disease of dogs involving the retina, choroid, and sclera. It can be a mild disease or cause blindness. It is known to occur in Smooth and Rough Collies, Shetland Sheepdogs, Australian Shepherds, Border Collies, and Nova Scotia Duck Tolling Retrievers. [63]
Zebrafish have also been used to test the medicinal benefits of certain psychoactive drugs, particularly how they can be used to treat mental health problems. [38] A study looking into the antidepressant properties of ketamine using zebrafish as subjects found that when exposed to small amounts of ketamine (2 mg/L), zebrafish displayed more ...
Eye problems in pets, like infections or cataracts, can lead to discomfort or vision loss. Regular check-ups help prevent serious issues. Tatyana Consaul/istockphoto
Parasites, including fleas and mites, are a common cause of skin disease in dogs, according to Dr. MacMillan. If your dog is allergic to flea saliva, they could develop flea allergy dermatitis, ...
Primary glaucomas occur in the absence of other eye disease, and are therefore presumed to be genetic in origin. [1] The most common type of glaucoma in dogs is primary angle-closure glaucoma (PACG). [1] The least common type of glaucoma in dogs is primary open-angle glaucoma (POAG), although this is the most common type that affects humans. [1]
Retinal dysplasia is an eye disease affecting the retina of animals and, less commonly, humans. It is usually a nonprogressive disease and can be caused by viral infections, drugs, vitamin A deficiency, or genetic defects. Retinal dysplasia is characterized by folds or rosettes (round clumps) of the retinal tissue.
Sudden acquired retinal degeneration syndrome (SARDS) is a disease in dogs causing sudden blindness. It can occur in any breed, but female dogs may be predisposed. [1] Approximately 4000 cases are seen in the United States annually. [2]