Publications by authors named "Muhammet Kazım Erol"

Widefield fundus photography is critical for the detection, documentation, and management of pediatric eye diseases. Existing clinical pediatric fundus cameras offer a limited field of view (FOV) and suboptimal image contrast, hindering comprehensive peripheral retina examination. Additionally, the high cost and lack of portability of commercial devices restrict their use in resource-limited settings.

View Article and Find Full Text PDF

Objectives: Bipolar Disorder (BD) is an important psychiatric disease that progresses with attacks, can be chronic and causes serious mental problems. In this study, we aimed to identify the retinal vascular pathologies in BD patients by optical coherence tomography angiography (OCTA) imaging.

Methods: Retinal vascular analysis from 35 BD patients and 30 healthy controls (HCs) were scanned using the OCTA machine.

View Article and Find Full Text PDF

Background: Central serous chorioretinopathy (CSC) is a systemic disease more than a disease localized to the eye, and there may be vascular involvement in its pathogenesis.

Objective: This study aimed to evaluate the carotid intima-media thickness (IMT) of patients with CSC, to compare it with that of healthy individuals, and to explore whether there might be an association between CSC and subclinical carotid atherosclerotic disease.

Materials And Methods: Adult patients with CSC (n = 30) and healthy individuals (n = 30) were included in this prospective study.

View Article and Find Full Text PDF

Purpose: To compare the results of intravitreal bevacizumab (IVB) monotherapy and combined intravitreal bevacizumab and laser photocoagulation (LPC) therapies applied in the same session to patients with aggressive retinopathy of prematurity (A-ROP) in our clinic.

Methods: The study included 67 eyes of 37 patients diagnosed with A-ROP and treated. Forty-nine eyes treated with anti-vascular endothelial growth factor agent injection monotherapy for A-ROP treatment were included in the first group.

View Article and Find Full Text PDF

Objectives: This study aimed to evaluate serum biomarker values measured during second-trimester aneuploidy screening in terms of their predictive ability for the development of retinopathy of prematurity (ROP) in premature infants.

Methods: This retrospective cohort study evaluated the data of 1985 idiopathic premature infants who underwent ROP screening from 2016 to 2022. The infants were divided into two groups according to the presence of ROP, and those with ROP were further evaluated in two subgroups based on the presence of proliferation.

View Article and Find Full Text PDF

Purpose: we aimed to report on the optical coherence tomography angiography (OCTA) outcomes of eight patients with optic disc pit maculopathy (ODP-M) who were treated with 23-gauge pars plana vitrectomy (PPV).

Methods: We examined sixteen eyes of eight patients-eight eyes with ODP-M and eight healthy fellow eyes. Fundus color photography, fundus autofluorescence, fundus fluorescein angiography, optical coherence tomography (OCT), and OCTA were performed.

View Article and Find Full Text PDF

Purpose: This study was carried out to investigate the effects of retinopathy of prematurity (ROP) and intravitreal antivascular endothelial growth factor (VEGF) injections on the corneal endothelium in the childhood period of patients who have had ROP.

Methods: The material of comparative case-control clinical study consisted of patients followed up with ROP between February 2013 and February 2023. The eyes in the study group were divided into two subgroups consisting of those who received intravitreal anti-VEGF injections (subgroup 1) and those who were followed up only (subgroup 2).

View Article and Find Full Text PDF

Background: We aimed to compare the retinal, optic disc vascular density (ODVD) values, and acircularity index (AI) of patients with idiopathic macular telangiectasia type 2 (IMT) and healthy individuals using the optical coherence tomography angiography (OCTA) device.

Methods: The study included 39 patients with IMT and 37 healthy controls. The OCTA findings of the patients and controls were examined.

View Article and Find Full Text PDF

Background: To perform the optical coherence tomography angiography (OCT-A) evaluation of the microvascular structures of the retina and choroidal tissue in asymptomatic patients who received radiotherapy for nasopharyngeal carcinoma and to compare the results to those of healthy individuals.

Methods: Ophthalmological examinations were performed in all asymptomatic patients without vascular or systemic diseases, or fundus findings who had received radiotherapy at least two years earlier. Then, OCT-A scans were obtained.

View Article and Find Full Text PDF

Objective In this study, we aimed to assess the effectiveness and quality of the YouTube videos for patients regarding the treatment of macular holes. Materials and methods The quality and effectiveness of the videos on macular hole treatment on YouTube were evaluated using the DISCERN, global quality score (GQS), Journal of the American Medical Association (JAMA), and usefulness index scoring systems. Results The median DISCERN score of 100 videos included in the study was 18 (range: 15-73), the median JAMA score was 3 (range: 0-4), the median global quality score was 1 (range: 1-5), and the median usefulness index score was 1 (range: 0-5).

View Article and Find Full Text PDF

Introduction: We conducted this study to detect possible changes in posterior segment structures using the optical coherence tomography angiography (OCTA) in individuals vaccinated with the Pfizer-BioNTech vaccine.

Materials And Methods: The study included healthcare professionals who presented to the Ophthalmology Clinic of Health Sciences University Antalya Training and Research Hospital, who were scheduled to receive the first dose of the Pfizer-BioNTech vaccine. The exclusion criteria were any eye pathology (e.

View Article and Find Full Text PDF

Background: This study aimed to evaluate retinal and optic disc vascular changes in patients with keratoconus (KC) using optical coherence tomography angiography (OCTA).

Methods: Thirty-two eyes of 22 patients with KC and 24 eyes of 24 age- and sex-matched healthy controls were included in this study. Corneal topography and OCTA were performed.

View Article and Find Full Text PDF

Purpose: To analyze the postoperative foveal avascular zone (FAZ) area, superficial capillary plexus (SCP), deep capillary plexus (DCP) vascular densities (VD), and retinal layers after cross-linking (CXL) for keratoconus treatment.

Methods: Twenty-seven eyes with cross-linking treatment for keratoconus were included in the study. Foveal avascular zone (FAZ) area, SCP VD, DCP VD, and retinal layers were evaluated by using optical coherence tomography angiography (OCTA).

View Article and Find Full Text PDF

Purpose: The study aimed to evaluate the ocular surface and meibomian gland morphology in electronic cigarette (e-cigarette) smokers.

Methods: The upper and lower eyelids of 25 male e-cigarette smokers and 25 healthy male non-smoker patients were evaluated using Sirius meibography. Meibomian glands loss was automatically calculated using Phoenix meibography imaging software module, with the result obtained as percentage loss.

View Article and Find Full Text PDF

Purpose: To compare foveal avascular zone (FAZ) area, foveal vascular density (VD), and foveal thickness in pre- and full-term children and to evaluate their relationship with cystoid macular edema (CME) in the prematurity period using spectral domain optical coherence tomography angiography (SD-OCTA).

Methods: OCTA imaging was performed at 4-6 years of age in 90 eyes of 45 prematurely born children and 50 eyes of 25 term children. Subjects were divided into three groups: prematurely born with CME (group 1); prematurely born without CME (group 2); healthy, term children (group 3).

View Article and Find Full Text PDF

Background: To evaluate the changes in the peripapillary, macular and choriocapillaris microvasculatures in the eyes of patients with Behçet's disease (BD) without ocular involvement by optical coherence tomography angiography (OCT-A) and to investigate the relationship with systemic vascular involvement (SVI).

Methods: The study included 56 eyes of 33 patients with non-ocular BD and 61 eyes of 33 healthy subjects. The macular microvascular (MMV) vessel densities (VDs), FAZ parameters, Choriocapillaris flow area (CCFA), radial peripapillary capillary (RPC) VDs and optic nerve head (ONH) analyses were performed with OCT-A.

View Article and Find Full Text PDF

Introduction: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the virus that is responsible for the current coronavirus disease pandemic and the vaccines currently developed are administered to prevent this infection. CoronaVac is a vaccine produced by the inactivated virus method. Ocular side effects such as anterior uveitis, optic neuritis, vision loss, episcleritis, allergic reaction and paracentral acute middle maculopathy have been reported after receiving CoronaVac vaccine.

View Article and Find Full Text PDF

Purpose: To compare the efficacy and refractive outcomes of intravitreal bevacizumab, ranibizumab and aflibercept in retinopathy of prematurity (ROP) treatment.

Methods: We analyzed the files of patients treated with intravitreal bevacizumab, ranibizumab and aflibercept for ROP, retrospectively. A total of 187 eyes of 111 patients were included.

View Article and Find Full Text PDF

Purpose: To compare the visual outcomes and complications of patients who underwent flanged transconjunctival sutureless intrascleral intraocular lens (SIS IOL) implantation after anterior and pars plana vitrectomy.

Methods: All patients who underwent flanged transconjunctival SIS IOL fixation using a 27-gauge needle between September 2017 and November 2019 and were followed up for at least six months were evaluated. The cases in which anterior vitrectomy was performed were classified as Group 1, and those that underwent pars plana vitrectomy were classified as Group 2.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Introduction: A macular hole (MH) is a defect that occurs in the retina and involves all layers. In this study, we aimed to investigate the preoperative and postoperative choriocapillaris blood flow (CBF) changes in patients with MH and the role of CBF in the pathogenesis of the disease using optical coherence tomography angiography (OCTA).

Material Method: This is a retrospective study examining eyes with MH.

View Article and Find Full Text PDF

Torpedo maculopathy (TM) is a rare congenital defect of the retina pigment epithelium, which always localizes to the temporal fovea. It is most commonly unilateral and often occurs in patients without any relevant disease. Classic finding is a flat, hypopigmented, oval lesion, resembling a 'torpedo,' with a wedge-shaped tail extending outward and directed toward the foveola.

View Article and Find Full Text PDF

Objective: Ocular involvement in systemic sclerosis (SSc) has been documented; however it cannot be distinguished from secondary changes due to concomitant hypertension.Therefore, the aim of this prospective cross-sectional study was to demonstrate the direct effects of Ssc on retinal and choroidal microvasculature in patients without hypertension.

Methods: 47 SSc patients and 44 age- and sex-matched healthy control subjects were enrolled in this study.

View Article and Find Full Text PDF

: The objective of this study was to analyze the quality of videos on YouTube as educational resources about keratoplasty surgery.: The first 100 videos found after the keyword "keratoplasty for patients" was used in the YouTube search engine were included in the study. General video assessment included duration, views, likes, dislikes, and comments.

View Article and Find Full Text PDF

We report the case of a male infant who had an intravitreal anti-VEGF (aflibercept) injection for the treatment of retinopathy of prematurity at 35-week postmenstrual age. Four days following the injection, retinal imaging demonstrated a yellowish gray blurred mass that extended into the vitreous in the right eye, and the vitreous body was blurred. After two days, despite starting endophthalmitis treatment, there was still no improvement in the retinal lesion.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessioncph22c3q2ijdl0n45ukum8nl05krmfqk): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once