Publications by authors named "Murat Gunay"

Purpose: To evaluate the foveal development in patients diagnosed with retinopathy of prematurity (ROP) and to evaluate whether foveal development was affected by treatment in ROP patients.

Methods: This cross-sectional study included patients with a history of ROP. Foveal development was compared between eyes with spontaneous regression and treated eyes.

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Background: Overactive bladder (OAB) is an issue in the field of urology that is known for causing symptoms like urges to urinate frequently during the day and even at night (known as nocturia). Nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) play a vital role in the growth and operation of nerve cells in the body. New studies are indicating a connection between these neurotrophins and OAB; As such this research project was undertaken to explore how levels of NGT and BDNF in urine might be related to the presence of OAB in individuals.

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Purpose: To investigate clinical characteristics of postoperative supraciliary effusion (SCE) development following gonioscopy-assisted transluminal trabeculotomy (GATT) in patients with pseudoexfoliation glaucoma (PEXG).

Methods: In this prospective and observational study, 64 eyes (64 patients) with PEXG were examined with spectral-domain optical coherence tomography (SD-OCT) after GATT over a 12-month follow-up. Outcomes were surgical success, intraocular pressure (IOP), best-corrected visual acuity (BCVA), number of antiglaucoma medications (AGM) and complications of the SCE (+) group with those of SCE (-) group.

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Article Synopsis
  • Amiodarone can cause kidney damage by increasing free oxygen radicals and inflammatory markers while decreasing ATP levels, negatively affecting renal function.
  • A study on rats examined the protective effects of Coenzyme Q10 (CoQ10), cinnamon extract (CE), and a combination of both (CoCE) against this kidney injury caused by amiodarone.
  • Results showed that CoQ10, CE, and CoCE significantly reduced kidney damage, with CoCE being the most effective at preventing oxidative and inflammatory injury.
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Objectives: This case report explores the intricate relationship between methylphenidate (MTX) use and increased intraocular pressure (IOP) in a pediatric patient with a preexisting history of eye disease. Despite existing literature presenting cases of IOP elevation linked to MTX, a significant gap remains in understanding nuanced risk factors.

Methods: This case study used patients' medical records and a comprehensive literature review.

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Premature infants have a risk of neurodevelopmental deficits. Little is known, however, about how retinopathy of prematurity (ROP) affects visual motor integration (VMI), which is necessary for both fine motor skills and further school abilities. Due to the systemic escape of bevacizumab in the treatment of ROP, concerns regarding the long-term neurodevelopmental effect of the drug have arisen.

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Background: Fuchs uveitis syndrome (FUS) is a chronic intraocular inflammatory disease. It can lead to glaucoma which can be intractable to both medical and surgical treatment. In the present report, we describe our experience with GATT as a primary surgical option in the treatment of glaucoma secondary to FUS.

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Prcis: Analysis of surgical success and intraocular pressure (IOP), best-corrected visual acuity (BCVA), and antiglaucomatous medication (AGM) changes between segmental 180-degree and 360-degree gonioscopy-assisted transluminal trabeculectomy (GATT) in patients with pseudoexfoliation glaucoma (PEXG) showed no significant difference.

Objective: To compare surgical outcomes of segmental 180-degree and 360-degree GATT in patients with PEXG.

Materials And Methods: Prospective, comparative study of 65 PEXG eyes, who underwent segmental 180-degree GATT (GATT 180-degree group, 31 eyes) and 360-degree GATT (GATT 360-degree group, 34 eyes) in a tertiary academic center over a 12-month of follow-up.

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Purpose: To evaluate early changes after the first antivascular endothelial growth factor injection for macular edema secondary to diabetic retinopathy and retinal vein occlusion and the relationship between longterm outcomes.

Methods: The study enrolled patients who received anti-vascular endothelial growth factor injections for treatment-naive macular edema due to retinal vein occlusion and diabetic retinopathy. The central macular thickness was measured at baseline, post-injection day 1, week 2, and month 1, and at the last visit using spectral-domain optical coherence tomography.

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Article Synopsis
  • The study aimed to compare the clinical outcomes of two surgical techniques (GATT and TRAB) for treating advanced-stage pseudoexfoliation glaucoma (PEXG) among 62 patients.
  • After 12 months, both procedures showed similar rates of intraocular pressure (IOP) reduction, but TRAB had a higher success rate for achieving IOP below 12 mmHg.
  • No significant differences were found in demographic factors or the number of antiglaucoma medications used between the two groups by the end of the study.
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Gonioscopy-assisted transluminal trabeculotomy (GATT) has been used as a safe and effective procedure in the treatment of open angle glaucoma. In the present report, we demonstrated successful IOP control in two uveitic glaucoma cases secondary to juvenile idiopathic arthritis (JIA) following 360° GATT. Case 1 was a 7-year-old pseudophakic male with a preoperative IOP of 38 mmHg; his IOP stabilized at 17 mmHg with two topical antiglaucoma medications over 18 months.

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Purpose: To quantitatively assess the development of peripheral anterior synechia (PAS) formation rate and PAS locations on gonioscopic examination following gonioscopy-assisted transluminal trabeculotomy (GATT) surgery and investigate the surgical outcomes.

Methods: A total of 35 eyes from 31 patients with open angle glaucoma who underwent GATT or combined GATT and phacoemulsification surgery were analyzed. Presence of PAS was assessed on gonioscopy in nasal, temporal, superior and inferior quadrants at months 1, 3 and 6 following surgery.

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Introduction: To evaluate corneal endothelial cell morphology in patients with thyroid-associated ophthalmopathy (TAO).

Method: Seventy-two eyes of 36 patients with TAO presenting to the ophthalmology department between January 2018 and January 2022 were included in the study. The findings were compared with 98 eyes of 49 healthy individuals.

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Objectives: To compare the number of intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections performed during 2020 with that in the same period in 2019.

Methods: The study investigated anti-VEGF injections performed in 2019 and 2020. Injections performed on 923 eyes of 858 patients were evaluated.

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Objective: To evaluate changes in retrobulbar ocular blood flow parameters by using Colour Doppler Imaging (CDI) and changes in foveal microvasculature by using Optical Coherence Tomography Angiography (OCTA) in pediatric obese patients and to compare them with a group of healthy children.

Methods: Children diagnosed with obesity without hypertension and diabetes (39 subjects, obese group) and age-matched healthy controls (26 subjects, control group) underwent CDI and OCTA imaging. Peak systolic velocity, end-diastolic velocity and resistivity index from ophthalmic, central retinal and posterior ciliary arteries on CDI; superficial and deep capillary plexus vascular density and foveal avascular zone area on OCTA imaging were obtained in each group.

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Article Synopsis
  • - The study aimed to assess how effective adalimumab is for treating patients with refractory non-infectious uveitis, focusing on changes in retinal vascular leakage.
  • - Involved 23 patients and analyzed a total of 44 eyes, finding that a significant portion had active inflammation, and measuring changes in drug usage and eye conditions over time.
  • - Results showed that adalimumab effectively reduced inflammation and retinal leakage, suggesting it is a beneficial treatment for patients with this eye condition.
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Purpose: To investigate the potential benefits and practicality of ultra - wide field (UWF) imaging and intravenous UWF fluorescein angiography (IV UWF - FA) in infants with retinopathy of prematurity (ROP) using an Optos® California device.

Methods: This retrospective study involved 46 infants with a history of ROP who underwent UWF imaging with or without IV UWF - FA. ROP characteristics were identified using UWF color imaging.

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Purpose: To assess clinical characteristics of torpedo maculopathy (TM) lesions in an infant population with age ≤1.5 years and to investigate the role of NEXMIF mutation in the development of TM.

Methods: Retrospective analysis of medical records of 17 consecutive infants with the diagnosis of TM between 2016 January and 2019 December were done.

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Purpose: To compare central foveal thickness, retinal nerve fiber layer thickness, and subfoveal choroidal thickness using swept-source optical coherence tomography in premature children with a history of treated retinopathy of prematurity (either with intravitreal bevacizumab or laser photocoagulation) or spontaneously regressed retinopathy of prematurity versus age-matched healthy children at the age of 5 years.

Methods: A total of 79 children were divided into four groups: group 1, children who received intravitreal bevacizumab treatment; group 2, children who received laser photocoagulation treatment; group 3, children who had spontaneously regressed retinopathy of prematurity; and group 4, age matched, full-term healthy children. At the age of 5 years, visual functions and refractive status were assessed.

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Purpose: Our aim is to compare foveal microvascular structure, foveal retinal thickness, and best-corrected visual acuity (BCVA) in children with a history of premature retinopathy (ROP) and healthy children. It is also evaluated whether microvascular structural changes in the course of ROP had resulted from treatment modalities of ROP or the disease itself.

Methods: This is a cross-sectional observational comparative study.

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Objective: To evaluate foveal thickness, foveal microvasculature, and refractive error in children with asymmetric involvement of retinopathy of prematurity who had laser treatment in one eye and spontaneously regressed retinopathy of prematurity in the fellow eye.

Methods: Totally, 17 children (34 eyes) with a history of asymmetric course of acute Zone II retinopathy of prematurity were assessed. Data on best-corrected visual acuity, refractive status, axial length, anterior chamber depth, and optical coherence tomography angiography findings were analyzed between treated and non-treated fellow eyes.

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Purpose: Signal peptide-CUB-Epidermal growth factor-like domain-containing protein 1 (SCUBE-1) is a protein expressed on the cell surface of endothelial cells and platelets. We aimed to determine the alterations in SCUBE-1 levels in patients at different stages of diabetic retinopathy (DR).

Materials And Methods: Participants were grouped into 4 regarding the presence and stage of diabetic retinopathy as follows: control group (n 32), patients without DR (n 39), patients with background DR (n 42) and patients with proliferative DR (n 55).

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Objective: In this study, the clinical relevance of the levels of serum endocan and 25-hydroxyvitamin D [25(OH)D] was investigated in patients with acute kidney injury (AKI). Endocan or the endothelial cell-specific molecule 1 is a soluble proteoglycan secreted by vascular endothelial cells. It plays a significant role in immunity, inflammation, and endothelial function.

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Purpose: We aimed to assess ocular surface characteristics in children with Hashimoto's thyroiditis without thyroid-associated ophthalmopathy and compare the results with those of healthy children.

Methods: Twenty-two children with Hashimoto's thyroiditis (Group 1) and 20 healthy children without any ocular and/or systemic disorder (Group 2) were enrolled in the study. Ocular Surface Disease Index questionnaire, tear film osmolarity measurement (TearLab Osmolarity System, San Diego, CA, USA), Schirmer and tear film breakup time tests, meibography, and conjunctival brush cytology were performed and compared the results between the groups.

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Background: Due to the lack of diagnostic efficiency of serum creatinine in acute kidney injury (AKI), there is a pressing need to develop novel diagnostic markers. Therefore, in this study, we evaluated myo-inositol oxygenase (MIOX), neutrophil gelatinase-associated lipocalin (NGAL) and cystatin C in terms of their applicability in the diagnosis of AKI.

Methods: We enrolled a total of 39 AKI patients and 38 healthy controls in the study.

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