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ELBAY, AHMET

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Now showing 1 - 8 of 8
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    PublicationOpen Access
    Comparison of postoperative anterior segment changes associated with pars plana vitrectomy with and without vitreous base shaving
    (2020-11-01T00:00:00Z) Toklu, Enes; Altinisik, Muhammed; ELBAY, AHMET; Koytak, Arif; ELBAY, AHMET; KOYTAK, İBRAHİM ARİF
    AIM: To compare changes in anterior segment topography and axial length (AL) evaluated with Pentacam and IOL Master after pars plana vitrectomy (PPV) performed with and without vitreous base shaving.
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    PublicationOpen Access
    Postsurgical Cystoid Macular Edema following Posterior Chamber Toric Phakic Intraocular Lens Implantation Surgery: A Case Report.
    (2015-07-08) CANAN, J; AKKAN, U; TUNCER, K; Elbay, AHMET; ELBAY, AHMET
    Purpose: To describe a case of cystoid macular edema (CME) developing after posterior chamber toric phakic intraocular lens (PIOL) implantation. Methods: Case report. Results: A 33-year-old male underwent implantation of toric implantable collamer lenses (ICL), a new generation of PIOLs, for both eyes. Preoperative best spectacle-corrected distance visual acuity (BCVA) was 20/25 in the right eye and 20/32 in the left eye, with a manifest refraction of -9.25 -4.0 × 4° and -9.75 -4.25 × 171°, respectively. On day 1 postoperatively, the left eye had an uncorrected distance visual acuity (UDVA) of 20/60 with a refraction of +2.0 -3.5 × 11°. Despite the rotation of the PIOL, the cylindrical refractive component persisted in the left eye with a refraction of +2.0 -3.5 × 11°. Two weeks after the initial surgery, he presented with a decrease in his visual acuity in the left eye. The UDVA and BCVA were both 20/100 in the left eye with a refraction of +2.0 -4.25 × 3°. Dilated fundus examination and macular optical coherence tomography revealed a CME in the left eye. Following topical nepafenac therapy and explantation of the ICL, we observed a complete resolution of the CME at 3 months with an improvement in BCVA to 20/32 in the left eye. Conclusions: To our knowledge, this is the first reported case of postsurgical CME following toric ICL implantation. In cases of phakic eyes with an intact posterior capsule, postsurgical CME can develop, thus highlighting the purpose of this report.
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    PublicationOpen Access
    Diffuse Retinal Thickening due to Epiretinal Membrane in a Patient with Idiopathic Parafoveal Telangiectasia
    (2019-01-01T00:00:00Z) HAMZAYEV, IGBAL; ELBAY, AHMET; EKİNCİ, CANSU; Ozdemir, Hakan; HAMZAYEV, IGBAL; ELBAY, AHMET; EKİNCİ, CANSU; ÖZDEMİR, MEHMET HAKAN
    Idiopathic parafoveal telangiectasia (IPT) is characterized by abnormal dilated or ectatic retinal capillaries with exudation. In many studies macular hole or pseudohole was demonstrated in patients with IPT. However, only one case with the coexistence of IPT and epiretinal membrane (ERNI) formation was reported before. In this study, we presented the retinal alterations of a patient with IPT admitted to our clinic with complaint of blurred vision for two months. A hyperreflective band refers to ERM, diffuse thickening and increased reflectance of inner retinal layers and cystic spaces in the inner nuclear layer of the retina were detected in horizontal optic coherence tomography (OCT) images of left eye. Due to the thickening of the inner retinal layers, foveal depression was lost. There was no full-thickness or partial-thickness retinal tissue defect in any OCT scan.
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    PublicationOpen Access
    Dry Eye and Dry Nose Caused by the Effect of Allergic Rhinitis on Tear and Nasal Secretion Osmolarity.
    (2020-03-17T00:00:00Z) Elbay, A; Yenigun, A; Ozturan, O; Bayraktar, H; Ozer, Ömer Faruk; Dogan, R; YENİGÜN, ALPER; ELBAY, AHMET; ÖZDEM, ABDULLAH; ÖZER, ÖMER FARUK; DOĞAN, REMZI; ÖZTURAN, ORHAN
    Objective: Allergic rhinitis is a type 1 hypersensitivity reaction of immunoglobulin E in the rhino-ocular mucosa. This study was planned to demonstrate in patients with allergic rhinitis to evaluate changes in tear, nasal secretions, and blood osmolarity compared to healthy individuals. Method: Forty allergic rhinitis patients, 25 patients with acute upper respiratory tract infections, and 26 healthy participants were included in the study. Positive patients with allergic symptoms and skin prick test results were included in the allergic rhinitis group. Tear, nasal secretion, and blood osmolarity values were examined for the 3 groups. Result: In patients with allergic rhinitis, tear and nasal secretion osmolarity values were significantly higher in patients with acute upper respiratory tract infections and those of the healthy participants (P ¼ .001, P ¼ .038). In blood osmolarity measurements, there was no statistical difference between the groups (P ¼ .489). In patients with allergic rhinitis, Schirmer test results were significantly shorter than patients who had acute upper respiratory tract infection and those of the healthy participants (P ¼ .001, P ¼ .001). Patients with allergic rhinitis and acute upper respiratory tract infections had significantly shorter Schirmer test results than in healthy participants (P ¼ .001, P ¼ .001). Conclusion: Tear osmolarity was increased in allergic rhinitis patients, and this was thought to lead to dry eye findings. In the presence of allergic rhinitis, nasal secretions were found more hyperosmolar than tears. Nasal secretion osmolarity was higher in allergic rhinitis patients than in patients with acute upper respiratory tract infections and control group.
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    PublicationOpen Access
    Effect of foveal herniation on surgical outcomes in patients with idiopathic epiretinal membrane.
    (2021-09-10T00:00:00Z) Ozdemir, Hakan; Karacorlu, Murat; Elbay, AHMET; Kirik, Furkan; ELBAY, AHMET
    Purpose: This study aimed to compare the anatomical and visual outcomes of idiopathic epiretinal membrane peeling surgery, with and without foveal herniation. Methods: This retrospective, comparative, two-center study included age- and sex-matched patients exhibiting an idiopathic epiretinal membrane with and without foveal herniation (epiretinal membrane + foveal herniation group and epiretinal-membrane-only group, respectively). The baseline best-corrected visual acuity and central foveal thickness were compared within the groups through months 1, 3, 6, and 12 of follow-up postoperatively. Then, changes in these two parameters at all follow-up points were compared between the groups. Results: We enrolled 16 patients per study group. The baseline best-corrected visual acuity and central foveal thickness were not significantly different between the two groups (p>0.05). Compared with the baseline, both the best-corrected visual acuity and central foveal thickness improved significantly in both groups in all follow-ups (p<0.05), except for the best-corrected visual acuity of the epiretinal-membrane-only group after month 1 (p<0.05). The mean best-corrected visual acuity improvement after month 1 and the mean central foveal thickness reduction after months 1, 3, and 6 were significantly better in the foveal herniation + epiretinal membrane group than in the epiretinal-membrane-only group (p<0.05). However, the best-corrected visual acuity and central foveal thickness changes were not significantly different between the groups at the final visit (p>0.05). Conclusions: Although epiretinal membrane + foveal herniation demonstrated prompt anatomical and functional improvement, foveal herniation occurrence did not affect the final surgical outcomes in patients with idiopathic epiretinal membrane.
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    PublicationOpen Access
    Insomnia Might Influence the Thickness of Choroid, Retinal Nerve Fiber and Inner Plexiform Layer.
    (2020-03-19T00:00:00Z) Sahbaz, C; Elbay, AHMET; Ozcelik, M; Ozdemir, H; ELBAY, AHMET; ÖZDEMİR, MEHMET HAKAN
    Sleep may play a fundamental role in retinal regulation and the degree of retinal variables. However, no clinical study has investigated optical coherence tomography (OCT) parameters in patients with primary insomnia. All participants were evaluated with the insomnia severity index (ISI) and the Pittsburgh sleep quality index (PSQI). The retinal nerve fiber layer (RNFL), ganglion cell layer (GC), inner plexiform layer (IPL), macula and choroidal (CH) thickness were compared between 52 drug-naïve patients with primary insomnia and 45 age-gender-BMI-smoke status matched healthy controls (HC). The patients with primary insomnia differed from the HC regarding RNFL-Global (p = 0.024) and RNFL-Nasal inferior (p = 0.010); IPL-Temporal (p < 0.001), IPL-Nasal (p < 0.001); CH-Global (p < 0.001), CH-Temporal (p = 0.004), CH-Nasal (p < 0.001), and CH-Fovea (p = 0.019). ISI correlated with RNFL-Global and RNFL-Nasal inferior. The regression analysis revealed that ISI was the significant predictor for the thickness of RNFL- Nasal inferior (p = 0.020), RNFL-Global (p = 0.031), and CH-Nasal (p = 0.035) in patients with primary insomnia. Sleep disorders are seen commonly in patients with psychiatric, including ocular diseases. Adjusting the effect of insomnia can help to clarify the consistency in findings of OCT.
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    PublicationOpen Access
    Corneal sensitivity and subjective complaints of ocular pain in patients with fibromyalgia
    (2018-01-01) AYKUT, VEYSEL; ELBAY, AHMET; Uçar, Çiğdem; ESEN, FEHİM; Durmuş, Ebubekir; KARADAĞ, REMZİ; OĞUZ, HALİT; ELBAY, AHMET
    Purpose Fibromyalgia (FM) is a chronic pain disorder associated with pain and hypersensitivity in various parts of the body. The aim of this study was to understand whether changes in corneal sensitivity were associated with the subjective complaints of these patients. Patients and methods In this study, we included 36 patients with FM (30 female, 6 male, mean age: 46.7 ± 9.2 years) and 39 healthy control subjects (33 females, 6 males, mean age: 44.3 ± 7.6 years). We performed a detailed ophthalmological examination, measured tear film breakup time (TBUT), and performed Schirmer I test without anesthetic (SIT). Only patients that did not have any eye disease were included in this study. Subjective complaints of the patients were evaluated with ocular surface disease index (OSDI) scores and the corneal sensation was evaluated with Cochet-Bonnet esthesiometer. Results There was no significant difference between the groups for age, sex, and visual acuity. Both SIT (16.1 mm vs 15.3 mm, P = 0.36) and TBUT results (17.8 s vs 18.8 s, P = 0.40) were similar in FM group and the controls subjects. However, corneal sensations in central (60.0 mm vs 55.0 mm, P = 0.03), superior (57.5 mm vs 50.0 mm, P = 0.005), and inferior (53.89 mm vs 46.03 mm, Po0.001) regions were significantly increased in FM patients. There was a significant positive correlation between corneal sensation and OSDI scores. Conclusion In this study, we have demonstrated that the patients with FM have increased corneal sensitivity and have related ocular surface complaints similar to dry eye disease in the absence of it.
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    PublicationOpen Access
    Angioid streaks in a case of Camurati-Engelmann disease.
    (2017-07-01) ÖZDEMIR, HÜSEYİN; Tugcu, BETÜL; SEZER, TAHA; ELBAY, AHMET; TUĞCU, BETÜL; SEZER, TAHA; ELBAY, AHMET; ÖZDEMİR, MEHMET HAKAN