In the present study, we evaluated the ophthalmologic outcomes of 24 patients who received chemotherapy and/or radiotherapy for the treatment of non-conjunctival ocular adnexal mucosa-associated lymphoid tissue-type (MALT) lymphoma. Ophthalmologic outcomes were assessed in patients who received chemotherapy and/or radiotherapy from March 2004 until May 2010. Outcomes were determined according to common symptoms following chemotherapy and/or radiotherapy, which consisted of decreased visual acuity, dry eye symptoms, retinopathy, optic neuropathy, increased intraocular pressure, and blepharitis. Nine patients received chemotherapy alone, eight patients received radiotherapy alone, and seven patients received chemotherapy with additional radiotherapy (chemoradiation therapy). Patients treated by chemotherapy alone showed better ophthalmologic outcome scores (mean score, 1.56) than those treated by radiation alone or chemoradiation therapy (mean score, 4.01). In conclusion, the treatment of ocular adnexal lymphoma including radiotherapy showed poor ophthalmologic outcomes due to radiation-induced complications. Recently, many new treatment options have emerged, such as immunotherapy or radioimmunotherapy. In the future study, to select a better treatment modality with fewer complications, well-designed prospective trials with ophthalmologic outcomes are needed.