April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
Intraretinal Microstructural Changes After Cataract Surgery In Eyes With Previous Pars Plana Vitrectomy And Indocyanine Green-assisted Peeling Of The Internal Limiting Membrane
Author Affiliations & Notes
  • Georgios Mylonas
    Department of Ophthalmology, Medical University Vienna, Vienna, Austria
  • Stefan Sacu
    Department of Ophthalmology, Medical University Vienna, Vienna, Austria
  • Roman Dunavoelgyi
    Department of Ophthalmology, Medical University Vienna, Vienna, Austria
  • Wolf Buehl
    Department of Ophthalmology, Medical University Vienna, Vienna, Austria
  • Michael Georgopoulos
    Department of Ophthalmology, Medical University Vienna, Vienna, Austria
  • Ursula Schmidt-Erfurth
    Department of Ophthalmology, Medical University Vienna, Vienna, Austria
  • Footnotes
    Commercial Relationships  Georgios Mylonas, None; Stefan Sacu, None; Roman Dunavoelgyi, None; Wolf Buehl, None; Michael Georgopoulos, None; Ursula Schmidt-Erfurth, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 4504. doi:
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      Georgios Mylonas, Stefan Sacu, Roman Dunavoelgyi, Wolf Buehl, Michael Georgopoulos, Ursula Schmidt-Erfurth; Intraretinal Microstructural Changes After Cataract Surgery In Eyes With Previous Pars Plana Vitrectomy And Indocyanine Green-assisted Peeling Of The Internal Limiting Membrane. Invest. Ophthalmol. Vis. Sci. 2011;52(14):4504.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To investigate intraretinal changes after a successfully cataract surgery in patients with previous pars plana vitrectomy and indocyanine green-assisted peeling of a macular pucker and the internal limiting membrane (ILM).

Methods: : Fifteen eyes of 15 patients with previous 23 gauge pars plana vitrectomy and ILM peeling scheduled to undergo cataract surgery by phacoemulsification and intraocular lens implantation. All eyes were imaged using Spectralis OCT (Heidelberg Engineering©) using the AutoRescan function which allows follow-up scans in precisely the same location as the baseline scan. Spectralis OCT scans, infrared fundus imaging and biomicroscopy were performed at baseline, week 1, month 1 and 3 after surgery. OCT raster scans were further analyzed regarding the area of retinal thickening. All planimetric measurements were performed using the program ImageJ © (National Institutes of Health).

Results: : The mean (±SD) age of patients was 68 (±5) years (range 56-77).The mean visual acuity score was 0.3 (±0.13 SD) Snellen lines improved significantly to 0.83 (±0.15 SD) Snellen lines (p<0.001) three months after cataract surgery. Mean central millimeter thickness (CMMT) was 402 (±45µm SD) at baseline and increased to 417 (±48µm SD) at month 3 (p=0.001). Seven patients were developed increase of CMMT more than 30µm one month after cataract surgery.Three months after surgery, the area of swelling was significantly bigger in most patients compared to baseline values.

Conclusions: : This is the first study showing that patients with previous pars plana vitrectomy and ILM membrane peeling are more likely to develop macular edema after cataract surgery.

Keywords: macula/fovea • vitreoretinal surgery 
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