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A Hollenhorst plaque (also known as a retinal cholesterol embolus) is a cholesterol embolus that is seen in a blood vessel of the retina.It is usually found when a physician performs ophthalmoscopy, during which a plaque will appear as a small, bright crystal that is refractile (reflects the light from the ophthalmoscope) and yellow. [1]
Chloroquine retinopathy is a form of toxic retinopathy (damage of the retina) caused by the drugs chloroquine or hydroxychloroquine, which are sometimes used in the treatment of autoimmune disorders such as rheumatoid arthritis and systemic lupus erythematosus. This eye toxicity limits long-term use of the drugs. [3]
amitriptyline – tricyclic antidepressant used to treat separation anxiety, excessive grooming dogs and cats; amlodipine – calcium channel blocker used to decrease blood pressure; amoxicillin – antibacterial; apomorphine – emetic (used to induce vomiting) artificial tears – lubricant eye drops used as a tear supplement
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.
In a US study, after 10 years, 37% had developed into a defined connective tissue disease, 43% continued undifferentiated and 20% were in remission. [ 23 ] In a Spanish study, after a mean follow-up of 11±3 years, 14% had developed a definite CTD, 62% continued undifferentiated, and 24% were in remission.
The ERG is also used extensively in eye research, as it provides information about the function of the retina that is not otherwise available. Other ERG tests, such as the photopic negative response (PhNR) and pattern ERG (PERG) may be useful in assessing retinal ganglion cell function in diseases like glaucoma .
The Genesis Invitational was one of several sporting events in the region to be postponed due to the fires. The Lakers, Clippers and Kings all had games postponed, and the Los Angeles Rams’ wild ...
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]