A 10-year-old boy was referred to the authors three days after bimedial faden operation (posterior fixation), with a purulent endophthalmitis in his right eye and visual acuity of LP. Systemic combined antibiotics "ad hoc", including cephalosporins and amikacin, were administered in combination with immunosuppressive doses of methylprednisolone after swabs had been taken for bacteriologic workup. Nine days after admission a pars plana vitrectomy was performed. Both the conjunctival swabs and the vitreous aspirate grew coagulase-negative, gram-positive cocci with high colony counts. Traction retinal detachment developed, and 30 days after the squint surgery lensectomy and silicone oil instillation had to be performed. Visual acuity 3 months after squint surgery was RE cc 0.2.