بررسي علائم تشخيص پارگي اسكلرا بعد از تروماي غير نافذ به چشم

EVALUATION OF SCLERAL RUPTURE DIAGNOSTIC SIGN AFTER OCULAR BLUNT TRAUMA

Objective to determine the sensitivity and specificity of cardinal signʹs of scleral rupture after ocular blunt trauma. Background trauma is one of the most important causes of ocular morbidity , and has been reported 1.4% to 5.6% of the prevalence of scleral rupture after ocular blunt trauma . The scleral rupture may be occult after ocular blunt trauma with subconjunctival hemorrhage and intraocular hemorrhage . Methods records of all patients with ocular blunt trauma who had undergone diagnostic peritomy surgery for scleral laceration were retrospectively reviewed. The eyes were categorized into two groups: 1, positive peritomy (scleral laceration) and 2: negative peritomy , then the recods were evaluated. Results with respect to clinical features , 73 patients (81.8% male , 19.2% female) had went disgnostic peritomy surgery. Patientsʹage ranged from 8 months to 65 years. Overall diagnostic peritomy was positive in 28.76% and negetive in 71.24% . The signs in positive peritomy group includes decreased visual acuity in 80.9% , intraocular pressure 6 mm/Hg in 66.6% , limitation of ocular motility in 28.5% , APD (Afferent pupillary defect) in 57.1% , sub conjuctival hemorrhage and chemosis in 80.9% , hyphema in 95.2% , depth of anterier chamber change in 76.1% and not visible of fundus in 90.4% . Overall , the scleral laceration may be occurred after blunt truma . Therefore the patients show Cardinal signʹs after ocular blunt trauma may need diagnostic peritomy surgery.