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    Anterior vitrectomy and partial capsulectomy via anterior approach to treat chronic postoperative endophthalmitis
    (Ijo Press, 2013) Guler, Mete; Yilmaz, Turgut
    AIM: To describe the results of vitrectomy and partial capsulectomy via anterior approach surgical technique in treatment of chronic postoperative endophthalmitis (CPE). METHODS: Clinical records of 9 patients treated for CPE between 2006 and 2010 were reviewed retrospectively. All of these patients were treated with vitrectomy and partial capsulectomy via anterior approach. RESULTS: Six of 9 patients were male. The average patients' age was (60 +/- 8.1) years. The average period between cataract extraction and onset of signs and symptoms was (3.6 +/- 1.3) weeks. The average presenting visual acuity was 0.3 +/- 0.1 and the average final post operative visual acuity was 0.7 +/- 0.2. The mean follow-up period was (28.1 +/- 8.9) weeks. In all patients, the inflammation subsided after surgery. CONCLUSION: Our results suggest that anterior vitrectomy and partial capsulectomy via anterior approach may be considered as potentially useful and relatively less invasive technique to treat CPE.
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    Comparison of Visual Field Parameters in Early and Advanced Stages of Multiple Sclerosis Patients Without a History of Optic Neuritis
    (Taylor & Francis As, 2013) Guler, Mete; Turkcuoglu, Peykan; Yilmaz, Turgut; Yoldas, Tahir Kurtulus; Channa, Roomasa
    This study compared the visual field parameters of multiple sclerosis patients without optic neuritis in early versus advanced stage of the disease. Patients were divided into two groups: group 1 (early stage, n = 14) constituted of patients with Expanded Disability Status Scale scores <3 and group 2 (advanced stage, n = 13) constituted of patients with Expanded Disability Status Scale scores >= 3. Mean visual acuities in both groups were similar (p = 0.674). Mean sensitivity, mean defect, loss of variance, reliability factor parameters (Octopus 101 perimeter) of groups 1 and 2 were 24.17 +/- 3.62, 21.81 +/- 3.04; 4.14 +/- 3.05, 6.49 +/- 2.58; 21.61 +/- 22.17, 33.31 +/- 18.67; and 1.57 +/- 2.79, 2.59 +/- 3.09, respectively. Compared with group 1, mean sensitivity was significantly lower in group 2 (p = 0.013). Mean defect (p = 0.004) and loss of variance (p = 0.042) parameters in group 2 were significantly higher than in group 1. Mean reliability factor was similar between two groups (p = 0.211). Multiple scleorisis may alter visual field parameters without severe loss of visual acuity by possibly involving optic pathways other than optic nerve.
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    Effects of local anesthetic use on non-contact tonometry measurement results and patient comfort
    (2019) Guler, Mete; Urfalioglu, Selma; Bilgin, Burak
    Aim: To evaluate the effects of local anesthetic use on non-contact tonometry (NCT) measurement results and patient comfort and to compare the intraocular pressure (IOP) readings obtained with Shin Nippon NCT-10 tonometer and Goldmann applanation tonometry (GAT).Material and Methods: 31 healthy participants were included in this study. Central corneal thicknesses (CCT) were measured. All IOP measurements were performed in the same order as NCT without anesthesia, NCT with local anesthesia and GAT with anesthesia, respectively. After the measurements, participants were asked to rate the pain felt during IOP measurements. The range was from 0 to 10; 0= very painful/reading impossible, 10=no sensation at all/reading very easily obtained. Less pain was evaluated as more comfort.Results: NCT (p=0.007) and NCT-local (P=0.001) measurements overestimated IOP compared to GAT. IOP measured in NCT and NCT-local groups were similar (p=1.00). Mean patient comfort score was higher in GAT group than NCT group (p=0.006). Compared with NCT-local group, mean patient comfort score was lower in NCT group (P=0.033). Mean patient comfort scores were similar in GAT and in NCT-local groups (p=0.615). A positive but statistically insignificant correlation was found among NCT (r=0.201, p=0.277), NCT-local (r=0.259, p=0.160), GAT (r=0.272, p=0.139) measurements and CCT. Conclusion: Compared to NCT, IOP measurement with GAT is more comfortable. Performing NCT measurements with local anesthesia increases the patient comfort without changing the IOP values. The measurements with Shin Nippon NCT-10 with or without local anesthesia overestimated IOP compared to the GAT and cannot be used interchangeably with the GAT.
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    Evaluation of central macular thickness after penetrating keratoplasty
    (2018) Can, Nagehan; Guler, Mete; Yusufoglu, Elif; Celik, Fatih; Gul, Fatih Cem; Ozsoy, Ercan
    Aim: To evaluate the changes in central macular thickness after penetrating keratoplasty. Material and Methods: A total of 24 eyes of 24 patients who had undergone penetrating keratoplasty were included in the study. This study was performed retrospectively by reviewing the charts of the patients. Postoperative 1st week, 1st month, 3rd month, 6th month and 12th month mean total macular volume, central macular thickness, parafoveal area and perifoveal area thickness and retinal nevre fiber layer (RNFL) thickness results obtained with optic coherence tomography were compared. ANOVA test was used for statistical analysis. Results: The postoperative 1st week, 1st month, 3rd month, 6th month and 12th month mean total macular volume measurements were 7.03±0.2 mm³, 7.05±0.4 mm³, 7.0±0.6 mm³, 7.02±0.5 mm³ and 6.12±0.6 mm³, respectively. Mean central macular thickness measurements were 227.6±4.6 μm, 228.7±5.5 μm, 227.2±4.6 μm, 227.5±7.1 μm, 226.3±5.1μm respectively; mean parafoveal area thickness measurements were 290.2±3.7 μm, 289.9±7.8 μm, 288.7±6.3 μm, 288.8±4.7 μm, 288.6±8.3 μm respectively, mean perifoveal area thickness measurements were 261.1±4.2 μm, 261.4±1.9 μm, 260.4±3.6 μm, 259.8±2.7 μm, 259.3±4.7 μm respectively, and mean RNFL thickness measurements were 106.54±11.28 μm, 107.28±8.75 μm, 107.45±13.64 μm, 105.62±9.27 μm, 105.16±12.74 μm; respectively. Conclusion: No significant change was seen in macular thickness after penetrating keratoplasty. Although the macular thickness increases in the early postoperative stage, it decreases in time.