Article: article from journal or magazin.
Case report (case report): feedback on an observation with a short commentary.
Reemergence of dormant Coats disease after 30 years.
European Journal of Ophthalmology
Publication types: JOURNAL ARTICLE
Purpose. We describe an atypical case of a patient with Coats disease that re-emerged after 30 years, illustrating a previously poorly understood long-term evolution of the disease. Methods. A 20-year-old man consulted for visual acuity (VA) decrease in the left eye (LE) to 0.3. Fundus examination revealed an exudative lesion with telangiectasias in the superior peripheral retina compatible with the diagnosis of Coats disease. Results. The patient was treated with cryotherapy and argon laser. Visual acuity improved to 0.5 and remained stable during a 1-year follow-up. The patient did not seek further clinical follow-up. Thirty years later, he returned complaining of a progressive VA decrease in the LE. Snellen VA was measured to counting fingers. Fundus examination revealed stage 3A Coats disease with macular exudation and a serous retinal detachment in the inferior quadrants requiring the placement of an encircling band, external drainage, and cryotherapy of the vascular lesions. After 10 additional sessions of argon laser on the vascular malformations, exudation regressed further and best-corrected VA increased to 0.1 at the end of the follow-up period. Conclusions. Coats disease must be considered as a chronic disease, which necessitates a very long-term follow-up even in the absence of subjective visual loss. The disease can reawaken and recur with force in previously unaffected areas of the retina several decades later. The gold standard treatment consists of cryotherapy and argon laser. However, in cases of very important retinal exudation, surgical management with subretinal drainage may be necessary.
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