Publications by authors named "Mehmet S Sevim"
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 and a Hartmann Shack aberrometer (IRX-3; Imagine Eyes, Orsay, France) to measure ocular aberrations.
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 included a total of 33 eyes of 29 patients. To evaluate VF sensitivity, automated white-on-white perimetry was performed using a Humphrey field analyzer.
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 (15-36) months.
View Article and Find Full Text PDFPurpose: 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 glaucoma and 41 age- and sex-matched normal subjects were enrolled. All subjects underwent imaging with SD-OCT.
Objectives: 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.
Methods: 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 same order as follows: Ocular Surface Disease Index (OSDI) survey, tear film osmolarity measurement with TearLab Osmolarity System, tear meniscus measurements by OCT, corneal fluorescein staining scoring, conjunctival lissamine green staining scoring, tear film breakup time assessment, and anesthetized Schirmer test.
Purpose: To evaluate the efficacy of the combined procedure in the management of involutional entropion.
Methods: In this study, we reviewed 45 eyes of 36 patients who underwent the combined procedure (lateral tarsal strip, retractor tightening, and everting sutures) for the management of involutional lower eyelid entropion and compared the results with 31 eyes of 25 patients who underwent the Wies procedure. Exclusion criteria included previous lower eyelid surgery and follow-up of less than 6 months.
Objective: To investigate the frequency of dry eye (DE) by measuring tear osmolarity (TO) with the recently introduced TearLab system (TearLab Corp, San Diego, Calif.) in patients with early rheumatoid arthritis (ERA) and the relationship between the severity of DE and ERA disease activity.
Design: Prospective study
Participants: Sixty-four eyes of 64 newly diagnosed and untreated patients with ERA were enrolled in this study.
Purpose. To investigate changes of dry eye test results in patients who underwent pterygium surgery. Methods.
View Article and Find Full Text PDFPurpose: To assess the efficacy of preoperative intravitreal bevacizumab injection (IVB) before Ahmed glaucoma valve (AGV) implantation in the treatment of neovascular glaucoma (NVG).
Methods: This retrospective, comparative and consecutive case series study included 41 eyes from 41 patients who underwent AGV implantation for treatment of NVG. The study group was composed of 19 patients (19 eyes) to whom IVB was administered before surgery, while the control group was composed of 22 patients (22 eyes) to whom IVB was not administered before AGV implantation.
Purpose: To evaluate the effect of the shape of Bowman probes on the success of primary probing for congenital nasolacrimal duct obstruction.
Materials And Methods: Records of 42 nasolacrimal duct obstructions in 37 children who underwent probing with straight Bowman probes (group A) and 128 nasolacrimal duct obstructions in 110 children who underwent probing with Bowman probes manually bent to mimic the natural curve of the bony nasolacrimal pathway (group B) were evaluated and compared. All children were under 2 years of age.
Purpose: The purpose of this study was to evaluate retinal ganglion cell complex (GCC) thickness changes in eyes undergoing Brilliant Blue-assisted macular hole surgery (MHS) using Fourier-domain optical coherence tomography (FD-OCT).
Materials And Methods: This is a prospective, comparative, and observational case series of 70 eyes in 70 consecutive patients with idiopathic macular holes who underwent vitrectomy between December 2010 and October 2011. The study group consisted of 44 eyes in 44 patients, who underwent MHS with Brilliant Blue-assisted internal limiting membrane (ILM) peeling; 26 eyes in 26 patients, who underwent MHS without ILM peeling, constituted the control group.
We report a case of group G Streptococcus endophthalmitis following an intravitreal ranibizumab injection for a choroidal neovascular membrane. Pars plana vitrectomy was applied for endophthalmitis and group G Streptococcus cultures were isolated in the vitreous samples taken from the patient. Twenty-four hours following pars plana vitrectomy the patient underwent myocardial infarction and cardiac arrest.
View Article and Find Full Text PDFPurpose: To compare the efficacy of intravitreal triamcinolone acetonide injection versus 23-gauge pars plana vitrectomy with internal limiting membrane peeling for the treatment of chronic pseudophakic cystoid macular edema (CME) after uncomplicated cataract surgery.
Methods: This retrospective, comparative, consecutive case series study included 39 patients with chronic pseudophakic CME. Twenty eyes in 20 patients were treated with intravitreal triamcinolone acetonide injection (IVT group), and 19 eyes in 19 patients were treated with pars plana vitrectomy with internal limiting membrane peeling (PPV group).
Purpose: This study aimed to investigate the biomechanical changes in cornea in patients with recurrent anterior uveitis in comparison to healthy controls.
Methods: Eighty-five eyes in 51 patients with inactive recurrent anterior uveitis (25 male, 26 female) and 34 eyes of 34 age-matched control subjects (16 male, 18 female) were included. The following measurements were done and compared between patients and controls: corneal hysteresis, corneal response factor, intraocular pressure, and central corneal thickness.
Purpose: To evaluate the diagnostic ability of Fourier-domain optical coherence tomography (FD-OCT) measurements in both normal individuals and patients with different stages of glaucoma.
Patients And Methods: A total of 113 patients diagnosed with glaucoma and classified into different stages of glaucoma according to Glaucoma Staging System 2 and 30 healthy individuals were included in this study. In all patients, parameters of both the retinal ganglion cell complex (GCC) and the peripapillary retinal nerve fiber layer were measured by FD-OCT (RTVue-100).
Purpose: To evaluate the outcome of silicone intubation and tube removal in external dacryocystorhinostomy (DCR) patients with distal canalicular or common canalicular obstruction.
Method: Seventy-five eyes of 69 patients with distal or common canalicular obstruction who had undergone external DCR and silicone tube insertion were included in the study. Silicone tube was left in place at least for 3 months.
Article Synopsis
- The study assessed the outcomes of using a modified capsular tension ring (CTR) and posterior chamber intraocular lens (IOL) in patients suffering from traumatic cataracts with lost zonular support.
- Sixteen patients underwent surgery, showing significant improvement in corrected distance visual acuity (CDVA) from an average of 0.89 logMAR pre-surgery to 0.33 logMAR post-surgery.
- The results indicated that the modified CTR effectively maintained IOL position, minimized complications (with only 50% experiencing posterior capsule opacification), and improved patient visual outcomes.
Purpose: The evaluation of anatomic and visual outcomes in macular hole cases treated with internal limiting membrane (ILM) peeling, brilliant blue (BB), and 23-gauge pars plana vitrectomy (PPV).
Materials And Methods: Fifty eyes of 48 patients who presented between July 2007 and December 2009 with the diagnosis of stage 2, 3, or 4 macular holes according to Gass Classification who had undergone PPV and ILM peeling were included in this study. Pre- and postoperative macular examinations were assessed with spectral-domain optical coherence tomography.
Purpose: To compare the changes in endothelial cell density (ECD) in post-penetrating keratoplasty (PKP) patients after cataract extraction with phacoemulsification or planned extracapsular cataract extraction (ECCE).
Setting: Haydarpasa Numune Education and Research Hospital, Ophthalmology Clinic, Istanbul, Turkey.
Design: Clinical trial.