Search results
Results from the WOW.Com Content Network
Progressive retinal atrophy (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. Similar to retinitis pigmentosa in humans, [ 1 ] it is characterized by the bilateral degeneration of the retina , causing progressive vision loss culminating in blindness.
Glaucoma in a dog. Canine glaucoma refers to a group of diseases in dogs that affect the optic nerve and involve a loss of retinal ganglion cells in a characteristic pattern. . An intraocular pressure greater than 22 mmHg (2.9 kPa) is a significant risk factor for the development of glauco
Presumed ocular histoplasmosis syndrome (POHS) is a syndrome affecting the eye, which is characterized by peripheral atrophic chorioretinal scars, atrophy or scarring adjacent to the optic disc and maculopathy. The loss of vision in POHS is caused by choroidal neovascularization.
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]
Italian Greyhound – occurs in young dogs and is focal. Lhasa Apso – oval appearance. Mastiff – oval appearance. Miniature Pinscher – occurs at one to two years of age and is oval. Norwich Terrier – peripheral cornea. Pembroke Welsh Corgi – occurs in young dogs and can include blood vessels and pigmentation. Pointer – gray, hazy ring.
There are three stages a patient with the disease goes through: First stage: This is the initial phase of the condition, and it takes place from birth to the age of 14 years old; [6] it is characterized by the appearance of a large, perforated chorioretinal atrophic lesion at the central part of the macula which contains the vascular arch, alongside extra-macular white deposits and localized ...
The disease is usually unilateral and not associated with any accompanying systemic diseases. [ 3 ] Choroidal vascular disorders which cause visual symptoms, including central serous chorioretinopathy (CSCR), choroidal neovascularization (CNV), and polypoidal choroidal vasculopathy (PCV) may also present with focal choroidal excavation.
Collie eye anomaly (CEA) is a congenital, inherited, bilateral eye disease of dogs, which affects the retina, choroid, and sclera. It can be a mild disease or cause blindness. CEA is caused by a simple autosomal recessive gene defect. There is no treatment.