RESUMO
Objective:The aim of this study was to observe the clinical effects of myopic foveoschisis (MF) via triamcinolone (TA) assisted fovea-sparing internal limiting membrane peeling (FSILMP).Methods:This study was prospective research, including 41 cases (44 eyes) of patients diagnosed with MF in Changsha Aier Eye Hospital from November 2018 to June 2020. All patients underwent combined TA assisted FSILMP and 25 G pars plana vitrectomy (PPV). The posterior vitreous cortex, epiretinal membrane and internal limiting membrane (ILM) in the macular area were labeled by TA particles. The corrected visual acuity, central retinal thickness (CRT), post-operative healing of myopic foveoschisis and the incidence of macular hole were observed. Facilitating statistics, in this study, decimal visual acuity was converted to logMAR visual acuity through the formula logMAR=lg(1/decimal visual acuity).Results:Three cases underwent binocular surgery and 38 cases underwent monocular surgery. The average age of the patients was (56.16±11.00)years old ranging from 30-73 year olds; the average axial length of the patients was (30.50±1.96)mm which was ranging from 26.19-34.52 mm. The corrected visual acuity was 0.1-3(1.65±0.67) and the CRT was 126-1 100(473.47±195.96)mm. The patients were followed up for 1-31(13.89±8.32)months. A total of 38 cases (41 eyes) were followed up and 3 cases were lost. Reduction of MF in 41 eyes: 5 eyes (12.2%) were not healed, 12 eyes (29.3%) were improved, 8 eyes (19.5%) were near healed and 16 eyes (39.0%) were healed. The incidence of macular hole was 4.9% (2 eyes). The postoperative corrected visual acuity was 1.00±0.62, which was significantly higher than the preoperative corrected visual acuity [(1.65±0.67), t=8.23, P<0.01]. The postoperative CRT was (295.88±167.55)μm, which was significantly lower than that before operation (473.47±195.96)μm( t=7.82, P<0.01). Conclusions:TA can better mark the vitreous cortex, epiretinal membrane and inner limiting membrane of high myopia MF, and avoid the retinal toxicity caused by repeated indocyanine green (ICG) staining. At the same time, the effect of TA assisted FSILMP is no less than that of ICG assisted FSILMP in postoperative visual acuity recovery, CRT and the incidence of postoperative macular hole.