Long-Term Results after Intraocular Surgery in Treated Retinoblastoma Eyes.

The aim of the study was to analyze the results of intraocular surgery in treated retinoblastoma eyes and to assess the long-term results with a priority on local recurrences, secondary enucleation, and metastases. Retrospective noncomparative case series. From March 1964 to January 2020, 42 eyes of 40 retinoblastoma patients underwent intraocular surgery. Time interval between the last therapy and surgery was 9.5 years (mean: 114 months; median: 54.5 months). 31 eyes were treated for radiogenic cataract formation with a gain in visual acuity of 61.3%. One child developed an upper eyelid metastasis, 3 showed second primary malignancies (SPM), one a late recurrence, and 2 eyes were enucleated. Retinal surgery was performed in 17 eyes; 6 eyes were done as a combined procedure. Indications were radiogenic complications in the sense of a vitreous hemorrhage in 11 eyes and a rhegmatogenous retinal detachment in 6 eyes. 41.2% of the treated eyes had a postoperative gain in visual acuity, whereas 9.5% of the eyes could not be preserved in the long term. Regarding systemic involvement 2 patients developed late recurrences and one a SPM. Surgical therapy in treated retinoblastoma is necessary in isolated cases. In our series, cataract surgery was a safe procedure with a good option of a significant increase in visual acuity. As expected, vitreoretinal treated eyes showed a limited gain in visual acuity, a higher risk of late recurrences, and a lower globe retention rate. Therefore, a careful indication and individual risk-benefit analysis are mandatory.