Preliminary results of radiotherapy for primary intraocular non-Hodgkin lymphoma

This study aimed to retrospectively evaluate the efficacy of radiotherapy for primary intraocular non-Hodgkin lymphoma (PIOL). Between May 1998 and October 2010, 22 immunocompetent patients (four men, 18 women; median age 70 years, range 53-79 years) were diagnosed with PIOL. Magnetic resonance imaging showed no intracranial involvement in any patient. Patients received radiotherapy at a median total dose of 30 Gy (range 30-40 Gy). Three-year overall survival, progression-free survival and local control rates were 89% (95% confidence interval [CI]: 75, 103), 49% (95% CI: 24, 73) and 95% (95% CI: 86, 105) over a median of 36 months of observation, respectively. Twelve patients (55%) had intracranial relapse at a median of 28 months after initiation of radiotherapy. Visual acuity improved or was stable in 81% of treated eyes. The only grade ≥ 3 toxicity was cataract formation (five patients). Radiotherapy without chemotherapy for PIOL achieved high local control rates with acceptable toxicities.