Macular vitreoretinal interface abnormalities in highly myopic eyes are among the most visionthreatening diseases associated with macular retinal schisis and macular holes. To relieve the traction of the posterior vitreous cortex and to recover the anatomy of fovea for good central vision are the keys to successful repair. However, there are many controversial issues in the efficacy of the surgerical procedures including gas injection, scleral buckling and vitrectomy. How to evaluate these different surgeries and to establish standard surgical procedure options for macular vitreoretinal interface abnormalities in highly myopic eyes needs to be explored.
Objective To compare the outcome of pars plana vitrectomy (PPV) with triamcinolone (TA) assistance and internal limiting membrane (ILM) peeling for the treatment of moderate and extreme highly myopic macular hole retinal detachment (MHRD). Methods Forty-one highly myopic MHRD patients (41 eyes) who underwent PPV with TA assistance and ILM peeling were enrolled in this study. These eyes were divided into two groups according to different anatomic features: group A (24 eyes) had a consistent moderate long axial lengths (＜29 mm), quot;mildquot; retinal pigment epithelium (RPE) and chorioretinal atrophy, and posterior staphyloma (level 0 - 1 and depth le;2 mm); while group B (17 eyes) had a consistent extreme long axial lengths (ge;29 mm), quot;severequot; RPE and chorioretinal atrophy, and posterior staphyloma (level 2 - 3 and depth＞2 mm). All the patients underwent C3F8 tamponade at the end of PPV. The anatomic reattachment of the retina, macular hole closure, and visual acuity were observed at 12 months after surgery. Results The rates of retinal reattachment and macular hole closure were 91.67% and 58.33% in group A, 64.71% and 17.65 % in group B in the first time of surgery. The differences of rates of retinal reattachment (P=0.049) and macular hole closure (chi;2=6.787, P=0.009) between two groups were statistically significant. The rates of retinal reattachment and macular hole closure were 95.83% and 58.33% in group A, 88.23% and 29.53% in group B in the second time of surgery. The difference of retinal reattachment rate between two groups was not statistically significant (P=0.560). The difference of macular hole closure rate between two groups was statistically significant (chi;2=4.894, P=0.027). Twelve months after surgery, the vision acuity improved in 14 eyes, unchanged in nine eyes, and decreased in one eye in group A; the vision acuity improved in six eyes, unchanged in eight eyes, and decreased in three eyes in group B. The differences of vision result between two groups was not statistically significant (chi;2=0.209, P=0.647). Conclusion After PPV with TA assistance and ILM peeling, the rates of retinal reattachment and macular hole closure in eyes with moderate highly myopic MHRD are higher than that in eyes with extreme highly myopic MHRD, but there is no difference in visual acuity.
Objective To compare the outcome of pars plana vitrectomy (PPV) with triamcinolone (TA) assistance and with or without internal limiting membrane (ILM) peeling for retinal reattachment and macular hole closure of moderate highly myopic macular hole retinal detachment (MHRD). Methods Forty-three moderate highly myopic MHRD patients (43 eyes) with proliferative vitroretinopathy in class A or B, moderate long axial lengths (ge;26 mm but ＜29 mm), mild retina pigment epithelium and chorioretinal atrophy, and posterior staphyloma (0 - 1 level and le;2 mm) were enrolled in this study. The patients were divided into two groups according to surgical options: TA-assisted PPV with ILM peeling (group A, 24 eyes), TA-assisted PPV without ILM peeling (group B, 19 eyes). The anatomic reattachment of the retina, macular hole closure, and corrected visual acuity (CVA) were observed at one week, one, three, six and 12 months after surgery. Results Twelve months after surgery, retinal reattachment was achieved in 22 eyes (91.67%) and 18 eyes (94.74%) in group A and B, respectively. The difference of retinal reattachment rate between two groups was not statistically significant (Fisherprime;s exact test, P=1.000). Macular hole closure was in 14 eyes (58.33%) and 11 eyes (57.89%) in group A and B, respectively. The difference of macular hole closure rate between two groups was not statistically significant (chi;2=0.049，P=0.824). The differences of CVA between two groups was not statistically significant (chi;2=0.001, P=0.977). Conclusion ILM peeling may not be necessary in the surgery of TA-assisted PPV for moderate highly myopic MHRD.
Objective To observe the effect of pars plana vitrectomy (PPV) with epiretinal membrane peeling (ERMP) and (or) internal limiting membrane peeling (ILMP) and silicone oil tamponade for highly myopic macular hole retinal detachment (MHRD) with posterior staphyloma. Methods Eighty-five highly myopic MHRD patients (85 eyes) were enrolled in this study. All the patients were examined for corrected visual acuity (CVA), slit lamp microscope and preset lens, indirect ophthalmoscope, A/B ultrasound, optical coherence tomography (OCT) and intraocular pressure examination. The average axial length was (29.1plusmn;1.8) mm. There were 24 eyes with diffuse choroid atrophy and 61 eyes with partial choroid atrophy. The CVA was converted into a logarithm of the minimal angle of resolution (logMAR) for statistical analysis. The average logMAR CVA was 1.93plusmn;0.37. All the patients were treated with PPV and triamcinolone acetonide or indocyanine green (ICG) assisted ILMP and (or) ERMP and silicone oil tamponade. TA assisted ERMP was performed in 21 eyes; with ICG assisted ILMP in 56 eyes and TA assisted ILMP in eight eyes. The duration of silicone oil tamponade was (6.2plusmn;1.6) months. CVA, retina and macular hole status and complications were observed postoperatively. Differences between preoperative and postoperative CVA were evaluated by the t test and correlation analysis. Multiple logistic regression analysis was performed to assess the influence of individual preoperative factors on the initial anatomical success. Differences in the macular hole closure rate between eyes with or without macular schisis were evaluated for statistical significance using corrected chi-square. Results The mean logMAR CVA was 1.34plusmn;0.48 after surgery, which significantly improved compared to that before surgery (t=39.38, P＜0.01). The CVA after surgery was independent of axial length (r=0.142, P＞0.05), choroid atrophy (t=0.23, -0.165,P＞0.05) and macular hole closure (t=0.12, -0.005, P＞0.05). The retina reattached in 79 eyes (92.9%) and recurrence of retinal detachment occurred in six eyes (7.1%). Multiple logistic regression analysis indicated that recurrence of retinal detachment was independent of choroid detachment, proliferative vitroretinopathy, axial length, choroid atrophy and ILMP (OR=1.428, 5.039, 0.815, 2.578, 0.432; P＞0.05). Of these 85 eyes, macular hole closed in ten eyes (11.8%), macular hole did not close in 75 eyes (88.2%). There were 24 eyes (28.2%) experienced high intraocular pressure during the first 2 weeks after surgery, all of them were under control with drugs. There were 12 eyes (14.1%) presented with high intraocular pressure before the silicone oil removal, all of them were under control only by silicone oil removal. Conclusion For the treatment of MHRD with posterior staphyloma, PPV combined with ERMP and (or) ILMP and silicone oil tamponade show a high retinal reattachment rate.
Objective To compare the outcome of C3F8 versus silicone oil intraocular tamponade after pars plana vitrectomy (PPV) for the treatment of severe highly myopic macular hole retinal detachment (MHRD). Methods Thirty-two highly myopic MHRD patients (32 eyes) with extreme long axial lengths (ge;29.0 mm), quot;severequot; retina pigment epithelium (RPE) and chorioretinal atrophy, and posterior staphyloma who underwent PPV, were enrolled in this study. The patients were divided into two groups according to different intraocular tamponade agents: C3F8 (group A, 15 eyes) and silicone oil (group B, 17 eyes). The patients with retinal re-detachment after surgery received PPV again. The differences of sex (P=1.000), age (t=0.444, P=0.660), best-corrected visual acuity (t=0.084, P=0.934), diopter (t=0.449, P=0.978), lens state (P=1.000), time of the symptoms (t=0.375, P=0.710) and degree of retinal detachment (chi;2=0.014, P=0.907) between group A and B were not statistically significant. The anatomic reattachment of the retina, macular hole closure, and vision acuity were observed at one week, one, three, six and 12 months after surgery. Results The rates of retinal reattachment and macular hole closure were 60.00% and 13.33 % in group A, 82.35% and 29.41% in group B in the first time of surgery. There was no difference in rates of retinal reattachment and macular hole closure between two groups (P=0.243, 0.402). The rates of retinal reattachment and macular hole closure were 86.67% and 20.00% in group A, 94.12% and 29.41% in group B in the second time of surgery. There was no difference in rates of retinal reattachment and macular hole closure between two groups (P=0.589, 0.691). Twelve months after surgery, the vision acuity improved in five eyes, unchanged in seven eyes , and decreased in three eyes in group A; the vision acuity improved in seven eyes , unchanged in eight eyes , and decreased in two eyes in group B. The differences of vision result was not statistically significant between two groups (chi;2=0.209, P=0.647). Conclusion The rates of retinal reattachment and macular hole closure with silicone oil tamponade was higher than that with C3F8 tamponade in eyes with severe highly myopic MHRD, but the differences are not statistically significant.
ObjectiveTo observe the efficacy of vitrectomy combined with internal limiting membrane (ILM) peeling and scleral shortening for myopic foveoschisis (MF).MethodsProspective and non-randomized concurrent control study. A total of 35 MF patients (35 eyes) were enrolled in this study. The patients were divided into 2 groups according to surgery, including group A (18 eyes) and group B (17 eyes), all received vitrectomy combined with ILM peeling, but group A also received scleral shortening. The best corrective visual acuity (BCVA) examination using the Snellen vision chart was converted to the minimum resolution logarithm (logMAR). Ocular axis length (AL) was measured by Zeiss IOL-Master or A-scan ultrasound (Quantel Medical, France). The maximal value of retinal foveoschisis (MxFT) was measured by frequency-domain optical coherence tomography (Heidelberg, Germany). Multifocal electroretinogram (mfERG) responses were obtained with the RETIscan system (Roland Consult, Gemany).There was no statistically significant difference between the two groups (P＞0.05) in age (t=0.460), AL (t=1.520), diopter (t=0.020), logMAR BCVA (t=−2.280), MxFT (Z=−4.179) and b-wave ERG amplitude (Z=−0.198). The changes of BCVA, AL, MxFT and b wave amplitude were followed-up for 3-12 months.ResultsAt the last follow-up, the height of MF was decreased in 18 eyes of group A, and MF was completely disappeared in 4 eyes. The logMAR BCVA (t=7.272, 5.951), MxFT (Z=−3.724, −3.622) and b- wave ERG amplitude (Z=−3.223, −3.243) in both groups A and B were statistically improved (P=0.000, 0.000, 0.000, 0.000, 0.001, 0.001) compared to pre-operational results. There was significant difference of logMAR BCVA (t=−2.280) and MxFT (Z=−4.179) between the two groups (P=0.029, 0.000). But there was no significant difference in the amplitude of b-wave（Z=−0.198, P=0.843). The AL in group A was shortened after surgery, the difference was statistically significant (t=10.017, P=0.000). During the follow-up, there was no ocular hemorrhage, endophthalmitis and other complications.ConclusionPPV combined with ILM peeling and scleral shortening can shorten AL significantly for MF patients, and gain relative normal anatomical structure of the fovea, thus improve the vision.
ObjectiveTo observe and compare the outcomes of vitrectomy (PPV) combined with complete internal limiting membrane (ILM) peeling and fovea-sparing ILM peeling for the high myopic foveoschisis (MF).MethodsA retrospective case study was performed. From June 2016 to June 2018, 31 eyes of 31 patients with high myopic MF diagnosed in Department of Ophthalmology of Central Theater Command General Hospital were included in the study. There were 9 males and 22 females, who were monocular. The mean age was 57.55±9.45 years. All patients underwent BCVA, diopter, spectral domain OCT and axial length measurement. Snellen visual acuity chart was used for BCVA examination, and which was converted into logMAR visual acuity. According to the surgical method, patients were divided into PPV combined with ILM complete removal group (group A) and PPV combined with retained fovea ILM group (group B), which were 16 patients (16 eyes) and 15 patients (15 eyes ), respectively. The mean logMAR BCVA was 1.03±0.33 in group A and 1.11±0.35 in group B. The mean CFT was 596.51±196.69 μm in group A and 578.33±200.18 μm. There were no statistically significant differences in age (t=0.649, P=0.527), AL (t=－0.639, P=0.533), logMAR BCVA (t=－0.368, P=0.718), CFT (t=0.228, P=0.823) and MF type (P=0.576) between the two groups. The mean follow-up time after operation was 18.65±5.15 months. At 7 d, 1, 3, 6 and 12 months after surgery, and at the last follow-up, the same equipment and methods for relevant examinations. The changes of BCVA, CFT, macular hole and other complications were compared between the two groups. Comparison of BCVA and CFT between the two groups before and after operation was performed by paired t test. The count data were compared by using Fisher exact probability method.ResultsAt the last follow-up, MF was completely restored in 27 eyes (87.1%) of 31 eyes, partially restored in 4 eyes (12.9%). The mean logMAR BCVA of group A and Group B was 0.67±0.24 and 0.64±0.21, respectively. The average CFT was 126.25±36.61 μm and 134.27±25.29 μm, respectively. Compared with pre-operation, BCVA was obviously improved in both groups (t=6.630, 9.260; P=0.000, 0.000), CFT was significantly decreased in both groups (t=10.206, 8.799; P=0.000, 0.000). There were no statistically significant differences in logMAR BCVA and CFT between the two groups (t=0.156, －0.924; P=0.878, 0.371). In group A, full-thickness macular hole occurred in 1 eye (6.3%), while no macular hole occurred in group B. There was no significant difference in macular hole incidence between two groups (χ2=0.969, P=0.516). No intraocular hemorrhage, endophthalmitis and other complications occurred during the follow-up period.ConclusionsPPV combined with ILM peeling or fovea-sparing ILM peeling is effective in the treatment of high myopic MF. Both may contribute to improved MF closure rate and BCVA.