Risk factors for retinal detachment after intraocular


Objective: To evaluate the risk factors for late retinal detachmentoccurrence after successful posterior segment intra‐ocular foreign bodiesremoval.Method: This prospective cases series study included subjects presented toone vitro‐retinal surgeon at vitrectomy clinic/ Ibn Al‐Haetham Teaching EyeHospital from January 2007 to January 2012 with retained posterior segmentintra‐ocular foreign bodies. Ocular complications related to the trauma wererecorded. Extractions of foreign bodies were done through standard threeportvitrectomy technique. Nature and sizes of the foreign bodies werenoted. Post operative occurrence of retinal detachment was recorded,regarding possible risk factors. Follow‐up time was at least 6 months aftersurgeries.Results: 51 subjects with posterior segment intra‐ocular foreign bodies wereincluded. Most important mechanism of injury was shell injuries (43.1%).Majority of foreign bodies were metallic (82.4%), with mean average size of4.6 mm3. Ocular complications at presentation were; vitreous hemorrhage(76.5%), lens injury (52.9%), retinal detachment (21.6%), siderosis bulbi (3.9%),endophthalmitis (3.9%), and increased intraocular pressure (2.0%). Latepostoperative retinal detachment developed in 18 subjects (35.3%); 16 cases(88.9%) were due to formation of proliferative vitreo‐retinopathy, while 2cases (11.1%) occurred in eyes with siderosis bulbi. Ten cases had posttraumatic retinal detachment, and 6 of them had large foreign bodies (sizewas 10 mm3 or more).Conclusion: After successful posterior segment intra‐ocular foreign bodies’removal late retinal detachment can occur mainly due to development ofproliferative vitreo‐retinopathy which was related to presence of posttraumatic retinal detachment and large foreign bodies.