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KMID : 0360220240650040297
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Journal of the Korean Ophthalmological Society
2024 Volume.65 No. 4 p.297 ~ p.303
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Two Cases of Massive Subretinal Fluid Accumulation after Photodynamic Therapy for Age-related Macular Degeneration
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Han Su-Yeon
Park Min-Soo
Yang Yun-Sik
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Abstract
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Purpose: To report two cases of massive subretinal fluid accumulation at laser irradiated sites after photodynamic therapy in patients with age-related macular degeneration (ARMD).
Case summary: (Case 1) A patient with bilateral polypoidal choroidal vasculopathy, who was treated with half-dose verteporfin photodynamic therapy (PDT), developed decreased visual acuity. On fundus examination, massive subretinal fluid accumulation was observed in the laser irradiated sites of both eyes. The subretinal fluid was reabsorbed without further treatment, and the patient's visual acuity has recovered. (Case 2) A patient with ARMD, accompanied by a choroidal neovascular membrane and accumulation of subretinal fluid in the right eye, developed decreased visual acuity on the treated eye a day after receiving half-dose PDT treatment. On fundus examination, the subretinal fluid in the right eye had increased more than 5-fold compared to pre-treatment levels. After one week, the amount of subretinal fluid decreased and the patient's visual acuity improved.
However, since retinal exudate still remained, intravitreal bevacizumab treatment was administered. Thereafter, the patient’s fundus findings were unremarkable.
Conclusions: In the case of photodynamic therapy for ARMD, a large amount of subretinal fluid may occur as a rare complication. The subretinal fluid was naturally absorbed, but close observation is needed with the possibility of developing subretinal fluid in the event of decreased vision after photodynamic therapy.
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KEYWORD
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Age-related macular degeneration, Photodynamic therapy, Subretinal fluid
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