Corneal abrasion following anaesthesia for non-ocular surgical procedures: A case-controlled study.

The aim of this study was to identify risk factors associated with perioperative corneal abrasion at a single hospital in Mineola, New York (United States). A chart review was conducted of patients with perioperative corneal abrasion following non-ocular surgery and age-matched controls between June 2011 and November 2013. An age-stratified logistic regression model evaluated the association between corneal abrasion and potentially predisposing variables. The adjusted odds of a corneal abrasion occurring were 4.6 times greater for patients having surgery for ≥ 3 hours (p=0.001) and 3.6 times greater for patients with pre-existing ocular disease (p=0.02). Gender, diabetes status, surgical procedure or position were not found to be associated with the occurrence of a corneal abrasion. Corneal abrasions were associated with longer procedures and history of pre-existing ocular disease. No significant association between body positioning or surgical site and perioperative corneal abrasion was found. The study concludes that a longer duration of surgical procedure and pre-existing ocular disease are risk factors for perioperative corneal abrasion.

Subfoveal fluid resolves slowly after pars plana vitrectomy for tractional retinal detachment secondary to proliferative diabetic retinopathy.

PURPOSE: To report delayed visual recovery resulting from slow resolution of subfoveal subretinal fluid measured with optical coherence tomography (OCT) after pars plana vitrectomy (PPV) for repair of tractional retinal detachment (TRD) involving the fovea secondary to proliferative diabetic retinopathy (PDR). METHOD: In this retrospective case series, charts of three patients with persistent subfoveal fluid after PPV for TRD secondary to PDR were reviewed. All patients were followed up for a minimum of 1 year after surgery, using OCT and serial ophthalmic examination. RESULTS: Subfoveal fluid resolved completely after a minimum of 6 months after PPV as measured by OCT. All three patients had improvement in visual acuity after subfoveal fluid was completely resolved. CONCLUSION: Persistent subfoveal fluid may take several months to resolve in patients undergoing PPV to repair TRD secondary to PDR and account for delayed visual recovery. OCT is an important tool in the follow-up of patients undergoing vitrectomy for TRD.