The patient was a 47-year-old man with a sudden loss of vision in the right eye one month after cataract surgery at the end of which Triesence was injected. He had pain, redness, and photophobia. The past medical history was remarkable for gonorrhea 20 years previously. He denied recent weight loss, fatigue, general weakness, nasal, oral, or genital ulcers, chest pain, shortness of breath, abdominal pain, muscle pain, arthritis, rash, hair loss, headaches, dizziness, tinnitus, or hearing loss. He denied recent foreign travel or exposure to animals.
The visual acuity was hand motions OD and 20/25 OS. Anterior segment examination was remarkable for 1+ cells OD and OS was quiet. Both eyes had a posterior chamber intraocular lens. Posterior segment examination revealed 2+ vitreous cells and fluffy round white aggregates on the posterior hyaloid in the right eye. The left vitreous was quiet. The blood vessels in the right eye were attenuated with some sclerosis in the temporal half of the retina. The right fundus and periphery had confluent retinal whitening with a distinct curvilinear border, and there were multiple blots of deep yellowish material. Centrally, there were intraretinal hemorrhages. In the left eye, there were multiple small, deep, yellowish spots, primarily in the inferotemporal macula. OCT showed disruption of the deep retinal layers in the right eye, and fluorescein angiography of the right eye revealed large areas of nonperfusion, particularly temporally.
Laboratory testing was remarkable for a positive FTA Abs and RPR. HIV was negative, and CRP and ESR were normal. The PPD showed 5 mm of induration. The intravitreal Triesence likely contributed to the degree of involvement of the right eye. The patient was treated with doxycycline due to a penicillin allergy and the inflammation in the right eye subsided.
Two years later, he presented with blurred vision in the left eye for one week. The visual acuity was light perception in the right eye and 20/300 in the left eye. There was subretinal fibrosis inferotemporal to the fovea without hemorrhages or hard exudates. OCT revealed a deep plaque and shallow subretinal fluid that extended to the fovea.
What is the source of the deep plaque and subretinal fluid in the left eye and what treatment, if any, would you recommend?