Abstract
Objective To evaluate the clinial efficacy of microinvasive vitreoretinal surgery under noncontact wide-field viewing systems for the treatment of tractional retinal detachment caused by severe proliferative diabetic retinopathy (PDR). Methods The data of 64 eyes of 55 patients with severe PDR were analyzed retrospectively. All cases undewent vitrectomy under noncontact wide-field viewing system. Results The follow-up time was 6-14 months, average (8.75±3.85) months. Retina was reattached in 60 eyes (93.75 %). The best corrected visual acuity (BCVA, log MAR) after operation was improved from 2.06±1.64 to 1.89±0.72, the difference was significant (t=11.484, P=0.022). The BCVA after operation was ≥0.05 or ≥0.3, the percentage of eyes without involving the macular was better than those involving the macular. The difference were statistically significant (χ2=5.154, 10.234, P<0.05). Conclusion The microinvasive vitrectomy under noncontact wide-field viewing system is effective for the treatment of tractional retinal detachment caused by severe proliferative diabetic retinopathy. The retinal reattachment rate is high. The visual function is improved. Key words: Wide-field viewing systems, noncontact; Retinopathy, diabetic, prolifertive; Detachment, retinal, tractional; Vitrectomy
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