Hakan Kaçar

ORCID: 0000-0002-1454-2332
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About
Contact & Profiles
Research Areas
  • Retinal Diseases and Treatments
  • Glaucoma and retinal disorders
  • Intraocular Surgery and Lenses
  • Corneal surgery and disorders
  • Retinal Development and Disorders
  • Retinal and Optic Conditions
  • Retinal and Macular Surgery
  • Neuroscience and Neural Engineering
  • Ocular Disorders and Treatments
  • Retinal Imaging and Analysis
  • Facial Rejuvenation and Surgery Techniques
  • Facial Trauma and Fracture Management
  • Vascular Malformations Diagnosis and Treatment
  • Brain Tumor Detection and Classification
  • Ophthalmology and Visual Impairment Studies
  • Ocular Infections and Treatments
  • Traumatic Ocular and Foreign Body Injuries
  • Advanced biosensing and bioanalysis techniques
  • Head and Neck Surgical Oncology
  • Dental Radiography and Imaging
  • Reconstructive Facial Surgery Techniques
  • Kawasaki Disease and Coronary Complications
  • Williams Syndrome Research
  • Corneal Surgery and Treatments
  • Coronary Artery Anomalies

Sağlık Bilimleri Üniversitesi
2020-2021

Şanlıurfa Mehmet Akif İnan Eğitim ve Araştırma Hastanesi
2021

Şişli Etfal Eğitim ve Araştırma Hastanesi
2016-2019

University of Health Sciences
2018

University of Health Sciences Antigua
2018

Orbital Systems (Sweden)
2017

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 implantation for primary open-angle glaucoma 4 5 months prior, respectively. Both patients presented with pain, redness, loss vision, sensitivity to light. For both patients, the best-corrected visual acuity was hand motion, eyelids conjunctiva were hyperemic edematous, anterior chamber +3 cells exhibited hypopyon, B-scan...

10.1097/ijg.0000000000001076 article EN Journal of Glaucoma 2018-08-31

Objective: To evaluate short term changes in anterior chamber depth (ACD), central corneal thickness (CCT), intraocular pressure (IOP), and endothelial cell density (ECD) after intravitreal anti-vascular growth factor (VEGF) injections.Materials methods: A total of 100 eyes from patients, who were naive for injection treatment, included this retrospective study. Patients received only a single type anti-VEGF injections (bevacizumab, ranibizumab, or aflibercept) two consecutive months...

10.1080/15569527.2019.1616749 article EN Cutaneous and Ocular Toxicology 2019-05-16

Background: Bietti crystalline dystrophy (BCD) is a rare autosomal recessive disorder due to genetic defect in the CYP4V2 gene. BCD disease characterized by shiny yellow deposits retina with progressive atrophy of retinal pigment epithelium and choriocapillaris. Our aim present ocular imaging findings patient BCD.Materials Metods: A 38-year-old female was evaluated optical coherence tomography (OCT) angiography (OCTA) were examined.Results: OCT revealed multiple outer tubulations (ORTs) few...

10.1080/13816810.2020.1750036 article EN Ophthalmic Genetics 2020-03-03

Idiopathic and diabetic epiretinal membranes (ERM) are different in terms of pathophysiology, etiology, macular morphology, thus might respond to surgical treatment differently. We aimed compare the results two groups.Retrospective case series study 71 eyes 66 patients who underwent pars plana vitrectomy (PPV) due idiopathic or ERM with at least 1-year follow-up. Examinations were performed before, 1, 3, 6, 12 months after surgery. The average thicknesses nine sectors described by Early...

10.1080/08820538.2021.1890143 article EN Seminars in Ophthalmology 2021-02-22

A 58-year-old man with end-stage retinitis pigmentosa (RP) and visual acuity of light perception in both eyes received simultaneous phacoemulsification intraocular lens implantation the Argus II Retinal Prosthesis System (Second Sight Medical Products, Sylmar, CA) to his right eye 1 year ago. He accomplished fitting rehabilitation sessions, no extraocular or complications were encountered perioperatively, postoperatively, during follow-up. The patient used prosthesis actively for 2.5 3 hours...

10.3928/23258160-20171215-09 article EN Ophthalmic surgery, lasers & imaging retina 2018-01-01

A 17-year-old male patient diagnosed with Williams-Beuren syndrome presented a gradual decline in vision both eyes during 3-year period. The ophthalmologic examination was notable for numerous loop-shaped tortuous vessels accompanying normal appearing retinal and cystoid macular edema (CME). Mild foveal hypoplasia persistence of inner layers noted on spectral-domain optical coherence tomography (OCT). OCT angiography showed that the abnormal were not but compatible prepapillary vascular...

10.3928/23258160-20190806-07 article EN Ophthalmic surgery, lasers & imaging retina 2019-08-01

Purpose: To compare the results of 3 evisceration techniques involving placement an acrylic implant within scleral shell without posterior sclerotomy (Group 1), with a porous intraconal space 2) and 3) respect to ocular mobility, complications patient satisfaction. Methods: Single-center, retrospective, interventional case series. A chart review 72 patients undergoing between February 2013 January 2018 was carried out. Thirty-five met inclusion criteria having normal or near size eye at...

10.1097/scs.0000000000005584 article EN Journal of Craniofacial Surgery 2019-06-05

To evaluate peripapillary choroidal thickness changes in contralateral eyes of patients who had undergone evisceration their diseased eyes.In this retrospective study, parameters 34 diseased-eye between March 2014 and May 2016 were evaluated using spectral domain optical coherence tomography. The scans manually delineated to identify the principal surfaces Bruch's membrane, membrane opening, anterior sclera. Peripapillary was measured sclera at increasing distance away from opening. mean...

10.5935/0004-2749.20180056 article EN Arquivos Brasileiros de Oftalmologia 2018-01-01

On üç yaşındaki erkek olgu, yüksekten düşme sonrası gözünde büyüme ve çift görme şikâyeti ile kliniğimize getirildi. Oftalmolojik muayenesinde; sağ gözde ekzoftalmus, inferiora deviye glob görünümü özellikle yukarı bakışta belirgin hareket kısıtlılığı diplopi birlikte her yöne hafif mevcuttu. Bilgisayarlı tomografi incelemesinde; süperior orbital yerleşimli subperiostal hematik kist aynı hizada intrakraniyal epidural hematom görüldü. Olgunun bir aylık takibi spontan gerileme olmaması üzerine...

10.5336/caserep.2015-48170 article TR Turkiye Klinikleri Journal of Case Reports 2016-01-01

We present the clinical features and treatment approach of a case with congenital glaucoma, trabeculectomy rhegmatogenous RD, other ophthalmic complications. A 41-year-old male patient due to glaucoma in both eyes was admitted our clinic decreased visual acuity for past three days. Visual at level hand movement right eye, his left eye phthisic. The bleb on upper nasal side well formed but cystic avascular. Fundus examination revealed patchy RD half including macula. Phacoemulsification...

10.5455/medscience.2017.06.8673 article EN Medicine Science | International Medical Journal 2017-01-01

Amaç: Orbital duvar fraktürü nedeni ile cerrahi tamir yapılan hastaların 4 yıllık sonuçlarını değerlendirmektir. Gereç ve Yöntemler: uygulanan 25 hastanın dosyaları retrospektik olarak incelendi. Hastaların demografik verileri, preoperatif postoperatif tam oftalmolojik muayene bulguları, endikasyonları kayıt altına alınarak yaklaşımın anatomik fonksiyonel başarı oranları değerlendirildi. Bulgular: ortalama yaşı 26,68±11,9 yıl idi. On dört hastaya diplopi, 2 enoftalmus 9 ise multipl fraktür...

10.5336/ophthal.2016-53905 article TR cc-by-nc-nd Turkiye Klinikleri Journal of Ophthalmology 2017-01-01

Background: To investigate the ocular findings and multimodal imaging characteristics of retinitis pigmentosa (RP) patients.Materials Methods: Patients who were followed up in our clinic for RP evaluated retrospectively between June 2014 July 2017.Ophthalmological examination included best corrected visual acuity (BCVA), biomicroscopy, fundoscopy, axial length (AL) measurements.Optical coherence tomography (OCT) fundus autofluorescence (FAF) properties macular region examined detail.Results:...

10.4274/hamidiyemedj.galenos.2021.46855 article EN Hamidiye Medical Journal 2021-04-01
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