Chorioretinitis results in which change?

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Enhance your knowledge of equine eye health. Prepare for the Clinical Equine Ophthalmology Test with targeted quizzes, interactive flashcards, and detailed explanations.

Multiple Choice

Chorioretinitis results in which change?

Explanation:
Chorioretinitis causes inflammatory damage to the choroid and retina, leading to scarring and loss of pigment. In horses, this most often shows up as pale, depigmented areas in the non-tapetal retina around the optic disc. The tapetum lucidem is a separate layer, and chorioretinal inflammation typically does not present as hyperpigmentation of the tapetum. Thickening of the sclera or vascular shunting are not characteristic fundoscopic signs of chorioretinitis. So the depigmentation in the non-tapetal retina around the disc is the classic, most consistent change you’d expect.

Chorioretinitis causes inflammatory damage to the choroid and retina, leading to scarring and loss of pigment. In horses, this most often shows up as pale, depigmented areas in the non-tapetal retina around the optic disc. The tapetum lucidem is a separate layer, and chorioretinal inflammation typically does not present as hyperpigmentation of the tapetum. Thickening of the sclera or vascular shunting are not characteristic fundoscopic signs of chorioretinitis. So the depigmentation in the non-tapetal retina around the disc is the classic, most consistent change you’d expect.

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