Araştırma Çıktıları

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    Correlation of Visual Recovery and Increased Ellipsoid Zone Reflectivity After Successful Macular Hole Surgery
    (TURKISH OPHTHALMOLOGICAL SOC, 2020-01-01) Tugan, Busra Yilmaz; Karabas, Levent; Yenihayat, Fatih; Subasi, Sevgi; Kesim, Enes; Ozkan, Berna
    Objectives: To assess changes in reflectivity of the retinal pigment epithelium (RPE), ellipsoid zone (EZ), and external limiting membrane (ELM) on spectral domain-optical coherence tomography (SD-OCT) images and the effects of reflectivity changes on visual acuity improvement after vitrectomy in macular hole patients. Materials and Methods: Twenty-four eyes of 24 patients with idiopathic full-thickness macular hole closed after vitrectomy were retrospectively reviewed. The ``plot profile{''} function of the medical imaging software was used by a single masked physician to analyze RPE, EZ, and ELM reflectivity on OCT images at postoperative 1 month and 12 months. Results: Absolute and relative EZ reflectivity showed highly significant increases at postoperative 12 months compared to 1 month (p<0.001 and p<0.001, respectively). Absolute and relative EZ reflectivity changes from postoperative month 1 to month 12 after macular hole surgery were significantly correlated with best corrected visual acuity improvement (p=0.012 and p=0.020, respectively). Conclusion: EZ reflectivity can be a predictor of functional and anatomical improvement after macular hole surgery.
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    Limited Vitrectomy in Patients with Idiopathic Macular Hole
    (GALENOS PUBL HOUSE, 2019-01-01) Ozkan, Berna; Karabas, Veysel Levent; Tugan, Busra Yilmaz; Altintas, Ozgul
    Background: Partial posterior hyaloidectomy is suggested to minimize traction on the vitreous base and thus reduce the risk of iatrogenic breaks in patients with macular hole and epiretinal membrane. Aims: To evaluate the safety and efficacy of limited vitrectomy in patients with macular hole. Study Design: Retrospective cohort study. Methods: Fifty-two consecutive patients who underwent macular hole surgery without complete peripheral vitreous removal were included in the study. The improvement in visual acuity, the incidence of retinal breaks and detachment, anatomical results, and intraoperative and postoperative complications of this technique were evaluated. Results: The median visual acuity was 0.2 (0.1-0.4) before surgery and 0.5 (0.3-0.6) after surgery (p<0.001). None of the patients had retinal breaks or detachments. A sulfur hexafluoride was used in 24 patients (46.2\%), and perfluoropropane was used in 28 patients (53.8\%). Three patients (5.76\%) had revision surgery because of recurrence of the macular hole. We did not observe proliferative vitreoretinopathy or surgery-related major complications in any patient during the follow-up period. Conclusion: Limited vitrectomy without removal of the peripheral vitreous seems to be effective and safe with minimal risk of peripheral retinal breaks and detachment.