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  • Title: Clinical outcomes of double membrane peeling with or without simultaneous phacoemulsification/gas tamponade for vitreoretinal-interface-associated (VRI) disorders.
    Author: Kumar K, Chandnani N, Raj P, Agarwal A.
    Journal: Int Ophthalmol; 2016 Aug; 36(4):547-56. PubMed ID: 26659009.
    Abstract:
    The purpose of this study is to evaluate the clinical outcomes of double membrane (ERM & ILM) peeling and the effect of combined cataract surgery and SF6 gas injection in vitreoretinal interface (VRI) disorders. This is a retrospective interventional study. Seventy-two eyes with idiopathic vitreoretinal interface abnormalities that underwent 23 gauge pars plana vitrectomy with "double stain and double peel" technique were reviewed. SD-OCT was used to classify VRI disorders into following 4 groups: 44 in ERM type, 17 in VMTS type, 7 in macular pseudohole (MPH) type, and 4 in lamellar macular hole (LMH) type. ERM was a common association in all types. Mean preoperative BCVA improved from 0.58 ± 0.14 logMAR to 0.27 ± 0.16 logMAR units (p = 0.001). Mean CFT reduced from 409.17 ± 122.31 µm preoperatively to 277.28 ± 0.16 µm postoperatively (p < 0.0001). Among the VRI subtypes, visual improvement was significant except in LMH variety (ERM type, p = 0.0029; VMTS type, p = 0.0281; MPH type, p = 0.05; and LMH type, p = 0.7926). Mean change in CFT from baseline was least in LMH cases (p = 0.0093). There was no significant difference in BCVA and CFT in the group who had combined phacovitrectomy versus pseudophakic group (p > 0.05). Use of intraocular SF6 gas tamponade did not show any added benefits among the groups (p > 0.05). Improvement in foveal contour was seen in all groups. Simultaneous removal of ILM along with ERM during surgery for VRI disorders helps in restoring normal foveal contour with a favorable visual outcome. Combined cataract extraction or use of intraocular SF6 gas injection does not affect the surgical results.
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