Serhat Imamoglu

• Haydarpasa Numune Research and Teaching Hospital

Purpose To evaluate radiographic lacrimal gland (LG) volume and dimensions in Ahmed glaucoma valve (AGV)- versus trabeculectomy-treated eyes and contralateral non-treated eyes. Methods In this retrospective cohort study, 1616 medical records acquired between 2010 and 2020 were examined. In AGV-treated (group 1) eyes, there were 19 patients with re...

Objective The aim of this study was to evaluate the antibiotic resistance of microorganisms isolated in cases of culture-positive nosocomial late-onset neonatal sepsis in the neonatal intensive care unit. Materials and Methods Infants admitted to our neonatal intensive care unit between October 2015 and June 2022 were retrospectively screened. A t...

Purpose As superotemporal implantation of the Ahmed glaucoma valve is not always feasible in cases of refractory glaucoma, this study examined the characteristics and surgical outcomes of cases in which the valve was implanted in a nonsuperotemporal quadrant using a modified long scleral tunnel technique. Methods This retrospective case-control st...

Purpose To investigate the clinical outcomes of Ahmed glaucoma valve (AGV) implantation in primary open-angle glaucoma (POAG) and pseudoexfoliative glaucoma (PEXG). Methods The patients who underwent AGV implantation for POAG and PEXG between January 2015 and December 2021 in a single tertiary center eye clinic were reviewed retrospectively. Thirt...

Purpose To evaluate the effect of uneventful cataract surgery on Schlemm’s canal (SC) and the trabecular meshwork (TM) in cases with pseudoexfoliation (PX). Methods In this prospective study, 37 PX and 37 normal eyes, who underwent cataract surgery, were included. The PX group was further divided into two subgroups: PX syndrome (PXS) and PX glauco...

Objectives: To prospectively evaluate the effect of coronavirus disease 2019 (COVID-19) on retinal thickness. Methods: Twenty-six cases of COVID-19 infection confirmed by real-time polymerase chain reaction constituted the study group. The thickness values of the macula, retinal nerve fiber layer (RNFL), and ganglion cell complex (GCC) measured by...

To evaluate changes in pupil size, ocular wavefront aberrations (WA), and accommodation in healthcare workers after 4-h usage of Filtering Facepiece class 3 (FFP3) masks. This prospective study included 22 healthy healthcare workers. Pupil size, ocular WA, and accommodation changes before and after FFP3 mask usage were evaluated using a Hartmann Sc...

A 26-year-old female in her fourth week of pregnancy presented with uncontrolled high intraocular pressure (IOP) in her left eye. Her best-corrected visual acuity, IOP, cup-to-disc ratio, and average retinal nerve fiber layer thickness were 0.097 logMAR, 37 mmHg, 0.9, and 61 µm, respectively. Her central corneal thickness was 570 µm, and she had an...

Purpose: To compare the differences in anterior segment parameters between eyes with primary angle closure (PAC) with and without gonioscopically-visualized ciliary body processes (CBP). Study design: Prospective, observational, comparative clinical study. Methods: Detailed ocular examinations and gonioscopy were performed in 89 eyes of 89 pat...

Objectives: To compare the accuracy of intraocular lens (IOL) calculation formulas in patients undergoing phacoemulsification combined with gonioscopy-assisted transluminal trabeculotomy (phaco-GATT) and to determine the predictive factors for refractive errors. Materials and methods: Fifty-three eyes of 53 patients undergoing phaco-GATT were re...

Objectives: In this study, we aimed to evaluate Schlemm canal parameters using anterior segment swept-source optical coherence tomography in eyes that underwent keratoplasty and compare them with keratoconus and healthy control groups. Methods: The study included 32 patients who underwent penetrating keratoplasty or deep anterior lamellar kerato...

To identify whether gonioscopic ciliary body visibility and factors including anterior chamber depth (ACD), axial length (AL), acute attack history, and preoperative intraocular pressure (IOP) had any effect on IOP decrease in primary angle closure (PAC) and primary angle-closure glaucoma (PACG) after phacoemulsification (PE) and/or laser periphera...

Background: One of the main causes of unsatisfactory outcomes after unilateral blepharoptosis surgery is asymmetry of the upper eyelid height, which occurs as a result of a contralateral eyelid droop. Therefore, we evaluated the efficacy of Müller's muscle-conjunctival resection (MMCR) for the treatment of contralateral ptosis following unilateral...

Introduction: Conflicting results have been reported on phacoemulsification in the filtered eyes with open-angle glaucoma. In this study, we aim to compare the effect of phacoemulsification after trabeculectomy between pseudoexfoliation glaucoma (XFG) and primary open-angle glaucoma (POAG). Methods: Consecutive patients with XFG and POAG who und...

Prcis: The pseudoexfoliation glaucoma group produced higher mean absolute error and higher percentages of large-magnitude prediction error, in all investigated intraocular lens formulas. Postoperative anterior-chamber angle and change in intraocular pressure were associated with absolute error. Purpose: To evaluate refractive outcomes of catarac...

Objective This study aimed to evaluate the effect of peripherally inserted central venous catheterization on cerebral oxygenation by near-infrared spectroscopy in very low birth weight preterm infants. Study Design Forty-one preterm infants (gestational age ≤32 weeks and birth weight ≤1,500 g) requiring peripherally inserted central venous catheter...

Purpose: This study aimed to define a novel metric for the area of the macular hole (MH) and cysts located around the hole using an optical coherence tomography (OCT) device. Methods: This study was conducted with 58 eyes of 56 patients. The patients were divided into two groups according to anatomic closure after surgery. Using the metrics of m...

Purpose To analyze the risk factors and ocular hypotony characteristics of choroidal detachment (CD) after penetrating glaucoma surgery and to compare between eyes with and without CD. Methods This retrospective study enrolled 173 eyes of 168 patients. Patients who underwent trabeculectomy or Ahmed glaucoma valve implantation due to medically unco...

Purpose To analyze the effect of uneventful cataract surgery on intraocular pressure (IOP) in pseudoexfoliation glaucoma (PXG) eyes with and without a history of Mitomycin C-augmented trabeculectomy. Methods Eyes with PXG that had underwent uneventful cataract surgery were enrolled. The IOP and the medication numbers before cataract surgery, and 1...

Background and objective To evaluate ocular wavefront aberrations after vitrectomy in patients with vitreomacular interface diseases. Methods Thirty eyes of 30 patients with vitreomacular interface diseases were included in this prospective study. A Sirius topographer (SCHWIND eye-tech-solutions, Germany) was used to measure corneal aberrations an...

Precis: LC thickness and LCCI had comparable diagnostic performances with RNFL thickness in distinguishing eyes with PXG from those with PXS. BMO-MRW showed the lowest diagnostic performance among all geometric parameters derived from OCT scans we evaluated. Objective: To compare the diagnostic performance of different geometric parameters deriv...

Objective To examine the effect of bariatric surgery on the macular and peripapillary choroid in the late postoperative period in young patients with morbid obesity and compare them with a healthy control group. Methods This prospective controlled study included 50 eyes of 25 young patients with morbid obesity and 50 eyes of 25 age and sex-matched...

Purpose: Blepharoptosis with coexisting strabismus can be observed in adults, and both these conditions affect cosmetic appearance and have psychosocial effects. Both also commonly require surgery, which is typically performed using a sequential approach. This study aimed to evaluate the efficacy of simultaneous Müller's muscle-conjunctival resect...

Purpose: To compare the refractive outcomes after cataract surgery between patients with and without pseudoexfoliation, and to evaluate the risk factors of refractive error. Methods: Retrospective review of 210 eyes with pseudoexfoliation (study group) and 510 normal eyes (control) that underwent uneventful phacoemulsification with intraocular l...

Purpose This study aimed to define novel metrics for the area of the macular hole (MH) and the cysts placed around the hole using an optical coherence tomography (OCT) device. Methods This retrospective, cross-sectional study was conducted with 58 eyes of 56 patients. The patients were divided into two groups according to anatomic closure after su...

PurposeThis study aimed to define novel metrics for the area of the macular hole (MH) and the cysts placed around the hole using an optical coherence tomography (OCT) device.Methods This retrospective, cross-sectional study was conducted with 58 eyes of 56 patients. The patients were divided into two groups according to anatomic closure after surge...

Purpose To compare peripapillary choroidal vascularity index (CVI) parameters in pseudoexfoliation glaucoma (PEG), pseudoexfoliation (PEX) syndrome, and healthy controls. Methods A total of 240 eyes of 240 patients were included in this cross-sectional prospective study, and the three groups consisted of (i) 80 eyes of 80 patients with PEG, (ii) 8...

Purpose: Even though it is stated that external levator advancement (ELA) has a much longer learning curve than Müller's muscle-conjunctival resection (MMCR) in the treatment of aponeurotic ptosis, there is no study in the literature regarding the learning curves of these two surgical techniques. We aimed to objectively determine the length of the...

Patients with aponeurotic blepharoptosis who are treated with external levator advancement may experience complications such as upper eyelid height asymmetry and often require revision surgery. The authors assessed the efficacy of Müller muscle-conjunctival resection in cases with upper eyelid height asymmetry following bilateral external levator a...

Background: The effects of systemic magnesium sulfate (MgSO4) on retina in preterm hypoxic-ischemic (HI) rat model are not known. Our aim was to investigate the effects of MgSO4 on retinal ganglion cell (RGC) count, retinal ganglion cell (RGC) apoptotic index, retinal vascular endothelial growth factor receptor-2 (VEGFR-2) and glial fibrillary aci...

Purpose: To evaluate retina, choroid and optic nerve in patients recovered from coronavirus disease 2019 (COVID-19). Methods: Fifty healthcare professionals who had COVID-19 infection- confirmed with polymerase chain reaction from nasopharyngeal swabs- and were at least one-month swab specimen negativeness after the treatment (CG) compared with 40...

Background The increased popularity of periocular cosmetic applications in recent years has resulted in the appearance of various complications. The cosmetic eyelash lifting is one of these new techniques and is gradually becoming more popular. There are no previous reports of any complications of this procedure in the literature. Aims In this stu...

Purpose: The aim of this study was to analyze the postural intraocular pressure (IOP) changes in open-angle glaucoma after ab interno XEN gel implant surgery and to compare them with the changes observed with trabeculectomy and medical treatment. Patients and Methods: The study sample included 18 patients with XEN gel implants, 30 patients who had...

Purpose: To investigate the relationship between Bruch's membrane opening-minimum rim width (BMO-MRW) and retinal nerve fiber layer thickness (RNFLT) in adult patients anisometropic amblyopia using spectral domain optical coherence tomography (SD-OCT) MATERIALS AND METHODS: In this cross-sectional, observational study, 43 anisometropic eyes with c...

The aim of this study is to report the different findings in optical coherence tomography (OCT) of three patients from the same family diagnosed with X-linked juvenile retinoschisis (XLRS). A 16-year-old boy complaining of visual deterioration and strabismus was diagnosed with XLRS on the basis of a fundus examination followed by OCT, FFA, and elec...

Objectives: The goal of this study was to examine the safety and efficacy of ciliary sulcus implantation of the Ahmed glaucoma valve (AGV; New World Medical, Inc., Rancho Cucamonga, CA, USA) in patients with a risk of corneal decompensation. Methods: Patients with a corneal decompensation risk who underwent AGV implantation at a single instituti...

Objective: To evaluate the efficacy of 5-fluorouracil (5-FU) needling of encapsulated blebs (EB) after Ahmed glaucoma valve (AGV) implantation in patients with medically uncontrolled secondary glaucoma. Methods: Thirty-eight eyes of 37 patients who underwent AGV implantation due to secondary glaucoma with EB were recruited in this retrospective non...

Herein, we report 2 cases of endophthalmitis after XEN Gel Stent implantation. A 68-year-old woman and an 80-year-old man had previously undergone uncomplicated XEN Gel Stent implantation for primary open angle glaucoma (POAG) 4 and 5 months prior, respectively. Both patients had presented with pain, redness, loss of vision, and sensitivity to ligh...

Purpose To evaluate the outcomes of Ahmed glaucoma valve (AGV) implantation in vitrectomized eyes. Materials and Methods The medical records of 13 eyes that developed glaucoma due to emulsified silicon oil or neovascularization following pars plana vitrectomy and underwent AGV implantation were retrospectively reviewed. The main outcome measures w...

Purpose: The purpose of this study was to evaluate the influence of serous retinal detachment (SRD) on the outcome of intravitreal ranibizumab (IVR) therapy in diabetic macular edema (DME). Materials and Methods: Fifty-one eyes with cystoid macular edema (CME) and SRD (study group) and 57 eyes with only CME (control group) that received pro re nata...

Purpose: Common polymorphic variants upstream of Zinc finger protein gene 469 (ZNF469) have been associated with central corneal thickness. Rare ZNF469 variants have been shown in keratoconus patients. The aim of the current study was to investigate the frequency of ZNF 469 gene variants in rapidly progressive advance keratoconus patients who under...

The purpose of this study is to report the intermediate-term surgical outcomes of patients with iridocorneal endothelial syndrome-related glaucoma. The medical records of four patients (five eyes) surgery (Ahmed glaucoma valve implantation surgery and EX-PRESS mini shunt) were retrospectively reviewed. Median follow-up after glaucoma surgery was 24...

Purpose: To investigate the relationship between the Bruch membrane opening-minimum rim width (BMO-MRW) (global and temporal) parameters with spectral-domain optical coherence tomography (SD-OCT) and visual field (VF) sensitivity on the 10-2 test in patients with advanced glaucoma. Materials and methods: This cross-sectional, observational study...

Purpose: To evaluate the intra- and postoperative complications of phacoemulsification in sequential and combined procedures of 23-gauge vitrectomy and cataract surgery. Methods: The medical records of 376 patients who underwent phacoemulsification in a vitrectomized eye (sequential group) and 458 patients who underwent combined vitrectomy and p...

Age-related macular degeneration (AMD) is a leading cause of blindness in developed countries. The ARMS2 gene has been found to be associated with AMD. Currently, intravitreal ranibizumab (IVR) treatment is one of the widely used treatments for neovascular AMD. The aim of this study was to investigate the association between the genotype of ARMS2 r...

Purpose: To investigate the influence of the epiretinal membrane (ERM) on intravitreal ranibizumab (IVR) therapy for diabetic macular edema (DME). Methods: This retrospective study included 56 eyes of 48 patients with DME divided into two groups: the DME with ERM (study) and only DME (control) groups. Changes in the central macular thickness (CMT)...

We aimed to describe congenital keratoglobus with blue sclera in two siblings with overlapping Marshall/Stickler phenotype. Two sisters (ages four and six) with bilateral high astigmatism were evaluated by slit-lamp microscopy. Corneal topography and pachymetry maps were also obtained. Slit-lamp examination revealed that both corneas were globular...

Purpose: To perform in vivo imaging of the Schlemm's canal (SC) with anterior segment spectral-domain optical coherence tomography [AS-spectral-domain (SD)-OCT] and also to measure its biometric parameters including the SC length and SC area in patients with pseudoexfoliation (PEX) glaucoma. Methods: Forty-one consecutive patients with PEX glauc...

Context: The acute effects of cigarette smoking on pupil size and ocular wavefront aberrations (OWA) have been previously documented. The accommodation status of the eye is well known to be related to ocular aberrations. No previous study has evaluated the impact of cigarette smoking on the accommodation status of the eye. This study presents intr...

Purpose: To evaluate the mean platelet volume (MPV) and the neutrophil/lymphocyte ratio (NLR) in patients with branch retinal vein occlusion (BRVO). Methods: Thirty patients with branch retinal vein occlusion (BRVO group) and 27 age and sex matched subjects (control group) were included in the study. MPV and NLR parameters obtained from peripher...

Purpose: To investigate the clinical-anatomic correlation in central serous chorioretinopathy (CSC). Material and Methods: Forty-seven eyes of 37 patients were analysed retrospectively. The correlation of the visual acuity (VA) of the cases was evaluated with the subretinal fluid height, presence of retinal pigment epithelial detachment (PED), oute...

To compare tear meniscus measurements obtained by optical coherence tomography (OCT) and tear osmolarity with dry eye severity according to the Dry Eye Workshop (DEWS) classification system. Forty-four eyes of 22 patients with dry eye disease (DED) were recruited in this prospective study. In all eyes, ophthalmic examination was performed in the sa...

Purpose: To evaluate the efficacy of intravitreal ranibizumab (IVR) combined with posterior sub-Tenon injection of triamcinolone acetonide (STTA) for treatment of diabetic macular edema (DME) with serous retinal detachment (SRD). Methods: Eighty-five eyes of 65 patients with DME and SRD were enrolled in this retrospective study. Fifty-eight eyes...

Purpose To report the baseline plasma levels of vascular endothelial growth factor-A (VEGF-A), soluble vascular endothelial growth factor receptor-2 (sVEGFR-2) and soluble Tie2 in infants with treatment-requiring retinopathy of prematurity (ROP) and to investigate the effect of laser treatment on the plasma levels. Methods Blood samples were colle...

Purpose To assess the efficacy and safety of corneal wavefront-guided custom laser in situ keratomileusis (LASIK) to correct refractive errors and higher-order aberrations (HOAs) after penetrating keratoplasty (PKP). Setting Beyoglu Eye Training and Research Hospital, Istanbul, Turkey. Design Noncomparative case series. Methods The study compris...

Objective: Our aim was to evaluate the efficacy of augmented full and partial rectus muscle transposition in children with type 1 Duane syndrome. Methods: A retrospective review of vertical rectus muscle transposition augmented with lateral fixation procedures in 27 eyes of 25 children with type 1 Duane syndrome was performed and the functional res...

This study aimed to report an outbreak of early-onset endophthalmitis caused by Fusarium species following cataract surgery. The study was designed retrospectively to review microbiologic and medical records of eight cases of endophthalmitis caused by Fusarium species after cataract surgery performed in the same operating room and on the same date...

In Nigeria, the last two decades have witnessed an alarming rate of increase in incidents of examination misconduct especially at secondary school level. Evidences abound of increasing incidents of examination malpractice by students, teachers and parents. Examination malpractice has become so widespread that there is virtually no examination anywh...

Z Perioküler steroid enjeksiyonu sonrası santral retinal arter tı-kanıklığı nadir görülen bir komplikasyondur. 76 yaşında idyo-patik intermediyer üveit (Pars planit) tanısıyla ikinci kez arka subtenon triamsinolon enjeksiyonu sonrasında santral retinal arter tıkanıklığı gelişen ve hiperbarik oksijen tedavisiyle düze-len olgunun incelenmesi amaçlanm...

Chronic autoimmune idiopathic thrombocytopenic purpura has been rarely reported with another autoimmune disease, Type 1 diabetes mellitus in the literature. In this study a case report of a twelve year-old girl who has both diseases is presented. Clinical and laboratory findings resulted during the immunosuppressive treatment are also given, This p...