| Objective:Optical coherence tomography (optical coherence tomography, OCT) of retinal detachment of more than 1 year after surgery are not satisfied with visual acuity and macular optical coherence tomography of the relationship. By OCT after retinal reattachment, of best corrected visual acuity (best-corrected visual acuity, BCVA) is not satisfied with the reasons.Methods:Of clinical October 2008 to March 2011 at the Second Affiliated Hospital of Nanchang University, retinal detachment due to retinal reattachment surgery, including vitrectomy and gas tamponade in 25 cases,49 cases of silicone oil, scleral outer bar,42 cases of external pressure and condensation. All patients more than 1 year after the line OCT examination. Comprehensive comparison of age, retinal detachment time, more than 1 year after reduction of macular OCT examination best corrected visual acuity in patients with RRD impact; healthy control group:46 OCT routine inspection. First, the quantification of these factors create the table, with SPSS17.0 statistical software for various groups of visual acuity change for X2 test (significance level a= 0.05). Check the best corrected visual acuity≤0.1 parallel optical coherence tomography to observe the morphological changes of the macular area, and the best corrected visual acuity improved to analyze the reasons for the poor. The study group, foveal thickness and health of human eyes to compare the thickness of the fovea, the use of single factor analysis of variance. Analysis of whether there are statistically significant.Results:The preoperative visual acuity:light perception in 13 eyes,24 eyes manually, the fingers 32,0.01-0.1 by 47. Visual acuity improved 66 (56.9%), unchanged vision in 27 eyes (23.3%), decreased visual acuity in 23 eyes (19.8%). The group of 116 patients (116 eyes) were divided into 4 groups according to age,18 years of age were increased BCVA 2 cases; 18-30 years of age 28, decreased BCVA after surgery in 3 eyes, the same one, to improve 24; 30 45-50 years of age, postoperative BCVA dropped 13 eyes, unchanged in 12 eyes, improved in 26 eyes; 50 years of age 41, postoperative BCVA decreased in 13 eyes, unchanged in 14 eyes,14 eyes improved. Preoperative and postoperative BCVA compared (X2 = 4.003, P = 0.261> 0.05, not significant); postoperative BCVA changes in different age groups was statistically significant difference (X2= 20.818, P= 0.002<0.05), low age group of patients after surgery BCVA improved in the majority; different times after retinal detachment BCVA improvement were significantly different (X2 = 30.603, P = 0.000<0.05), retinal detachment and increase the longer the lower the BCVA. More than 1 year after reattachment OCT macular image features:1) the macular region was normal in 5 eyes,2) a sponge-like retinal thickening of 19,3) macular retinal thinning in 8 eyes, 4), cystoid macular edema in 13 eyes,5) serous retinal detachment in 11 eyes,6) macular hole 6,7) damage to retinal pigment epithelium in 16 eyes,8), macular edema in 11 eyes with macular epiretinal membrane,9), macular degeneration 12,10) Epiretinal membranes 9,11) others such as choroidal neovascularization, retinal hemorrhage, subretinal scar formation, retinal pigment epithelium thickening, chorioretinal atrophy 6; BCVA in all patients were less than 0.1. The study group and healthy foveal thickness macular thickness of the human eye to compare:In addition to the normal structure of the macular region and in healthy control group, P = 0.495> 0.05, no significant external; other species and the healthy control group Pairwise comparison P = 0.000<0.05, statistically significant meaning.Conclusion:OCT retinal detachment more than 1 year after macular morphology observation of anatomic reasons for postoperative BCVA recovery not only with age, time of retinal detachment, macular detachment on whether, and macular edema, retinal nerve Epithelium detachment, macular hole, retinal pigment epithelium detachment, macular thickness of the thinner, the formation of epiretinal membrane, macular edema associated with macular epiretinal membrane, macular degeneration, retinal pigment epithelial damage such as edema and is also an important influence Factors. OCT for clinical early detection, diagnosis and treatment of disease, providing vital information. |
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