Refractive changes after lens-sparing vitrectomy for macular hole and epiretinal membrane

Abstract

PurposeCataract progression after lens-sparing vitrectomy might differ according to original posterior segment diseases. Our objective was to analyze the refractive values after lens-sparing vitrectomy for macular hole (MH) and epiretinal membrane (ERM).Materials and methodsWe reviewed the medical records of 25 MH patients (25 eyes) and 23 ERM patients (23 eyes) who underwent lens-sparing vitrectomy. Refractive changes in both groups were compared. All patients underwent 20-gauge three-port pars plana vitrectomy. Fluid–air exchange was performed during vitrectomy only in the MH group. The results were analyzed using the unpaired t-test, chi-square test, or Fisher exact probability test, and multivariate analysis.ResultsThere were no significant differences in the patient’s age (P=0.45). The myopia progression rate (D/month) was higher in the MH group after surgery than that in the ERM group (P=0.035). MH group had more females (P=0.043), longer surgical time (P<0.001), and higher frequencies of surgical adjuvants use (triamcinolone acetonide, P=0.019; brilliant blue G, P<0.001). The myopia progression rate in the MH group (R=0.568, P<0.001) correlated with female gender. However, no correlation was observed between longer surgical time and the use of surgical adjuvants.ConclusionThe rate of myopia progression was higher in the MH group. Fluid–air exchange and gender may affect the rate of myopia progression.

One‑year outcomes of 27G core‑pars plana vitrectomy of idiopathic epiretinal membrane

“…The total refractive force of the eyeball was +58.64 D, including +43.05 D for the cornea and +16.0 -+20.0 D for the lens; thus, the vitreous has low refractive power. A relevant study reported that most of the progression of myopia after vitrectomy was linked to cataract progression (34). However, in the present study, no significant cataract progression was detected at 12 months post-operatively.…”

Comparison of Refractive Changes Following Pseudophakic Vitrectomy with or without Gas Tamponade

“…Also, 23 G, 25 G, and 27 G instrumentation were introduced with advances in technology since 1971 (Fujii et al, 2002;Eckardt, 2005;Oshima et al, 2010). Many reports have described the development of nuclear cataract and refractive changes following lens-sparing vitrectomy (Ikeda et al, 2014;Okamoto et al, 2014;Muto et al, 2017). Also, some reports have found changes in refraction toward myopia in pseudophakic eyes who underwent 20 G and 23 G vitrectomy for various vitreoretinal pathologies (Suzuki et al, 2000;Akinci et al, 2008).…”