眼眶颗粒细胞瘤是少见的眶内肿瘤〔１〕，源发下直肌者未见报道，我院发现１例报告如下。患者女３５岁住院号６１１０右眼逐渐向外突１年，视力下降１个月，１９９５年８月１４日收住我院。体检正常，家族史无特殊。右眼视力０．６，不能矫正，左眼视力１．５。眼压右眼２... Orbital granulosa cell tumor is a rare intraorbital tumor [1]. There is no report of origin of the inferior rectus muscle. One case was reported in our hospital as follows. The 35-year-old female patient, hospital number 6110, had his right eye gradually protruding outwards for 1 year, his visual acuity dropped for 1 month, and he was admitted to our hospital on August 14, 1995. Normal physical examination, no special family history. The right eye visual acuity 0.6, can not be corrected, the left eye visual acuity 1.5. Intraocular pressure right eye 2...