A woman in her 60s with known human leukocyte antigen B27 positivity was referred for protracted intraocular inflammation and intractable pain 5 months after trabeculectomy in the right eye. On presentation, best-corrected visual acuity was 20/100. Ultrasonographic imaging showed moderate vitritis, and slitlamp examination mirrored this (Figure , A).Anterior chamber aspirates, which required a vitrector to extract, demonstrated filamentous, acid-fast, gram-positive nocardia (Figure , B). Despite aggressive treatment with intravitreal amikacin/vancomycin and oral cotrimoxazole, guided by culture and sensitivity analyses, the eye was ultimately enucleated.Despite favorable in vitro susceptibility profiles, advanced intraocular nocardia infections remain challenging to eradicate owing to abscess formation in the eye 1,2 and elsewhere, 3 and they are associated with poor ocular outcomes. 4 Early postcataract nocardia endophthalmitis has been successfully treated with combined topical and oral cotrimoxazole 5,6 but is often difficult to diagnose, mimicking chronic inflammation or fungal infection. Earlier recognition of the characteristic cotton-ball infiltrates may accelerate diagnosis/treatment and improve outcomes.