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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.
Brown syndrome is a rare form of strabismus characterized by limited elevation of the affected eye. The disorder may be congenital (existing at or before birth), or acquired. Brown syndrome is caused by a malfunction of the superior oblique muscle , causing the eye to have difficulty moving up, particularly during adduction (when eye turns ...
The management of strabismus may include the use of drugs or surgery to correct the strabismus. Agents used include paralytic agents such as botox used on extraocular muscles , [ 1 ] topical autonomic nervous system agents to alter the refractive index in the eyes, and agents that act in the central nervous system to correct amblyopia.
This is when it is said to be "compensated". When fusional reserve is used to compensate for heterophoria, it is known as compensating vergence. In severe cases, when the heterophoria is not overcome by fusional vergence, sign and symptoms appear. This is called decompensated heterophoria. Heterophoria may lead to squint, also known as strabismus.
Stifle pain sometimes causes a horse to stand with the stifles rotated out. [13] Hip and pelvic pain can produce a toe-out, stifle out, hock-in stance and that remains present at the walk. [10] Asymmetry of the muscular structure, due to muscle atrophy, usually occurs on the side of the lame limb.
The acute symptoms of contagious equine metritis include acyine inflammation of the uterus, an obvious thick, milky, mucous vulvar discharge 10 to 14 days after a live covering by a stallion. Chronic symptoms include milder uterine inflammation that will cause less obvious vulvar discharge, and then the infection may be more difficult to eliminate.
An equine malocclusion is a misalignment between the upper and lower jaws of a horse or other equine. It results in a faulty bite with the upper and lower teeth failing to meet correctly. [ 1 ] Malocclusions can cause pain to the horse and may also lead to weight loss and other eating problems related to poor chewing or loss of appetite.
A horse may be returned to work if symptoms have ceased and is no longer on NSAIDs or other prescribed drugs related to treatment of ER, this can otherwise can hide signs of another bout of ER. If NSAIDs or other treatment drugs are needed to keep the horse comfortable, or if the horse is reluctant to continue work, the animal is not yet ready ...