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Gregory Empey, Baruch Kuppermann, Simon R Bababeygy, Arlene Gwon; An Evaluation Of Vitreoretinal Surgery Through A Hydrophobic Small Aperture Intraocular Lens In New Zealand Black Rabbit Eyes. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):2988.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate the ease of performing vitreoretinal surgery in eyes implanted with a hydrophobic small aperture intraocular lens (IC-8 IOL, AcuFocus, Irvine).
Single-center, prospective, animal study. Six female New Zealand black rabbits underwent crystalline lens extraction and IC-8 IOL implantation in one eye. In the opposite eye of three rabbits, a control monofocal IOL (BioTech Vision Care) was implanted. In the opposite eye of the remaining 3 rabbits, a Tecnis Multifocal IOL (ZMB00, Abbott, Santa Ana, CA) was implanted. Two weeks post-op, the following vitreoretinal procedures were performed: anterior and posterior vitrectomy, air-fluid exchange, diathermy, simulated epi-retinal membrane peel, simulated endo-retinal laser photocoagulation, and binocular indirect ophthalmoscopic visualization and indirect laser photocoagulation of the retrina. Dilated pupil size varied between 5.0 to 9.5 mm. Procedural ease was rated based on four primary measures of visualization: optical quality, stereopsis, depth perception, and contrast sensitivity. Each measure was rated on a scale of 0 to 4 (4=excellent). Slit-lamp examination was performed to assess ocular status.
All procedures and analysis were possible to perform with minor adjustments to technique for the IC-8 IOL eyes. The overall score for ease of performing vitreoretinal procedures in the IC-8 IOL eyes was 3.4 (range 3.0-4.0). Mean scores for ease of performing a vitrectomy procedure was 3.67 (range 3.5-4.0). Mean scores for ease of performing diathermy and simulated epi-membrane peel procedures were both 3.33 (range 3.0-3.5). The ease of performing air-fluid exchange and indirect ophthalmoscopy were rated 3.2 and 3.0 (range 3.0-3.5) respectively. . For the monofocal and multifocal IOL eyes, all scores were 4.0 for all measures. Slit-lamp examination revealed no abnormal findings for any eye involved in this study.
Vitreoretinal surgery in eyes implanted with a small aperture IOL can be performed with relative (?)ease and good visibility of all retinal structures. Some minor modifications to technique may be required.
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