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Equine recurrent uveitis (ERU) – also known as moon blindness, recurrent iridocyclitis, or periodic ophthalmia [1] – is an acute, nongranulomatous inflammation of the uveal tract of the eye, occurring commonly in horses of all breeds, worldwide. The causative factor is not known, but several pathogeneses have been suggested.
Uveitis: is a group of 30 intraocular inflammatory diseases [71] caused by infections, systemic diseases, organ-specific autoimmune processes, cancer or trauma. [72] That is, uveitis refers to a complex category of ocular diseases that can cause blindness if either left untreated or improperly diagnosed. [72]
The disease may progress to severe inflammation of the uveal layer of the eye (uveitis) with pain and sensitivity of the eyes to light. The affected eye often remains relatively painless while the inflammatory disease spreads through the uvea, where characteristic focal infiltrates in the choroid named Dalén–Fuchs nodules can be seen. The ...
Uveitis is estimated to be responsible for approximately 10%-20% of the blindness in the United States. [ 36 ] For non-infectious uveitis, women are more likely (57%) to be affected than men, possibly due to their higher prevalence of related autoimmune diseases . [ 37 ]
For this reason, blindness in animals is a unique topic of study. In general, nocturnal or subterranean animals have less interest in the visual world, and depend on other sensory modalities . Visual capacity is a continuum, with humans falling somewhere in the center.
People taking Ozempic and Wegovy may be at increased risk of developing a debilitating eye condition that can cause irreversible vision loss, a study published in JAMA Ophthalmology finds.
Uveitis includes recurrent uveitis and periodic ophthalmia ("moon blindness"). Spontaneous equine recurrent uveitis (ERU) occurs in 10-15% of the equine population, with the Appaloosa breed having an eightfold higher risk than the general horse population.
Because uveitic glaucoma is a progressive stage of anterior non infectious uveitis, uveitic glaucoma involves signs and symptoms of both glaucoma and uveitis.. Patients with acute non infectious anterior uveitis may experience the following symptoms: pain, blurry vision, headache, photophobia (discomfort or pain due to light exposure), or the observance of haloes around lights.