Objective:To evaluate the clinical effects of vitrectomy on total retinal detachment in patients with retinopathy of prematurity (ROP). Methods:The clinical data of 73 eyes of 56 patients with total retinal detachment in ROP (stage 5) who had undergone vitrectomy were retrospectively analyzed. The age o f the patients when underwent the surgery was 384 months old with the average o f (13.02plusmn;14.64) months. The gestation age ranged from 25 to 36 weeks with the average of (29.5plusmn;2.22) weeks; the birth weight ranged from 900 to 2500 g wit h th e average of (1400.19plusmn;300.05) g; the oxygeninhaling time ranged from 2 to 9 0 days with the average of (20.53plusmn;18.91) days. The surgery included open vitr ectom y, closed lens extraction, and vitrectomy. The anatomical outcomes of retinal re attachment were categorized as success: macular reattachment; partial success: macular detachment; and failure: total retinal detachment.Results:After the operation, the anatomical outcome was succeed in 10 eyes (13.69%), partially succeed in 20 eyes (27.39%), and failed in 43 eyes (58.9%). The visual acuity was hand moving in 9 eyes (12.33%), and the grating acuity was better than 0.004 in 6 e yes (8.21%) after the surgery.Conclusions:The procedures of vitrectomy for retinal detachment in ROP is difficult, and the prognosis of the operative therapy is poor. After t he operation, only a few patients get retinal reattachment, and few have certain extent recovery of the visual acuity.
ObjectiveTo evaluate the potential risk factors with incidence and degree of retinopathy of prematurity (ROP) in infants with very low birth weight.MethodsThe clinical data of 130 premature infants with birth weight ≤1500 g recorded in Peking University People′s Hospital from July 2002 to April 2004 were retrospectively analyzed.ResultsThere were 60 infants in ROP group and 70 infants in control group. The mean birth weight and gestational age was (1256.3±196.8) g and (29.583 3±1.543 6) weeks in ROP group, and (1337.8±146) g and (31.217 4±2.430 6) weeks in control group, respectively. In 39 ecdemic infants, 32 were found with ROP (82.1%, 1 with mild and 31 with severe ROP) while in 91 local infants, 28 were found with ROP (30.8%, 15 with mild and 13 with severe ROP). The time of the first examination in infants with mild ROP was (36.062 5±2.909 0) weeks, which was significantly earlier than (59.477 3±33.604 0) weeks in the ones with severe ROP. The time of the first examination and surgery was earlier in non vitrectomy group than in nonvitrectomy group.ConclusionLow birth weight is the high risk factor in ROP. Incidence of ROP is higher in ecdemic infants. The severity of ROP correlates with time of first examination, and the way of surgery is relative to time of the first examination and surgery.(Chin J Ocul Fundus Dis,2005,21:275-277)
Objective To evaluate improvement of visual acuity for advanced proliferative diabetic retinopathy eyes with different complications after vitrectomy． Methods Four groups of advanced pr oliferative diabetic retinopathy (APDR) in 314 eyes with diabetes type Ⅱ and type Ⅰ were analyzed retrospectively: vitreous hemorrhage with limited traction retinal detachment (VH), extensive fibrovascular membranes with traction retinal detachment (TD), combined rhegmatogenous and traction retinal detachment (CRT) and cataract with vitreous hemorrhage or and traction retinal detachment (CHD)． Results 0．1 or better postoperative visual acuity was achieved in 59．5% of type Ⅱ and 66．7% of type Ⅰ in the VH group; 39．4% of type Ⅱ and 52．6% of type Ⅰ in the extensive TD group; 31．6% of the CRT grou p; 62．5% of the CHD group． The major intraoperative complication is iatrogenic retinal breaks． The causes of postoperative visual loss in present study included neovascular glaucoma (2．8% of type Ⅰ and 0．4% of type Ⅱ in aphakia, 25% of type Ⅱ in aphakia and 4．2% in pseudophakia), retinal detachment and CRAO． Conclusion The majority of APDR eyes obtained better visual improvement after vitrectomy and photocoagulation． (Chin J Ocul Fundus Dis, 2001,17:171-174)