Analysis Of Visual Outcome Prognostic Factors After Vitrectomy For Mechanical Eye Injury

ObjectivesThis study aims at exploring the prognostict factors which influence the visual outcome after vitrectomy about mechanical eye injury, and discussing the measures how to improve the visual outcome.MethodsTo observe162patients (163eyes) who received vitrectomy firstly because of mechanical eye injury, they all hospitalized in our treatment group of Ophthalmology in The First Affiliated Hospital of Zhengzhou University since July,2011to October,2012.Record their age, sexuality, reasons, types, injured position, size of the wound, stage of eye trauma, vision after injury, complications after injury, the time from injure to therapy, the time from injure to vitrectomy, complications in surgery and after surgery, and corrected visual acuity for at least3months, and with relative examination. Compared with the best corrected visual acuity before the injury, some patients were loss part of vision. Using Binary Logistic regression, to analyse the relation between the visual prognosis and influencing factors, and find out the relatively independent hazards. Put forward the best therapy time and remedy, in order to improve the best corrected visual acuity. ResultsIn this population, there are5patients(5eyes) arrived the best corrected visual acuity(1.0),and the others were all loss part of vision, accounting for96.03%. In this eyes, there are65eyes with corrected visual acuity of0.4or more, accounting for41.14%, there are29eyes with corrected visual acuity between0.2-0.4, accounting for18.36%,34eyes with corrected visual acuity between0.1～0.19, accounting for21.52%,8eyes with corrected visual acuity between0.05-0.09, accounting for5.06%,22eyes under0.05, accounting for13.92%.There is no relationship between visual prognosis and some reasons, like age, stage of eye trauma, PVR before surgery, traumatic cataract and choroidal detachment(P>0.05). The result was showed by Binary Logistic regression:size of the wound, types, the time from injure to therapy, the time from injure to vitrectomy, complications after surgery, amotio retinae, endophthalmitis, vitreous hemorrhage, optic nerve injury are the relatively independent hazards(P<0.05).ConclusionsThe patients with mechanical eye injury loss part of their vision. It is related with several factors:size of the wound, types, the time from injure to therapy, the time from injure to vitrectomy, complications after surgery, amotio retinae, endophthalmitis, vitreous hemorrhage, optic nerve injury. After injury, have a earlier diagnosis and treatment, avoid the complications in surgery, periodic inspection after surgery, process the complications timely, prevent vision damage again.