Publications by authors named "Ayfer Kanpolat"
Objective: To present a case of corneal ulcer unresponsive to medical treatment, successfully treated with the use of ultraviolet (UV) A and riboflavin collagen crosslinking (CXL) administered twice.
Methods: A 68-year-old diabetic male patient was diagnosed with unilateral severe corneal ulcer. Gram and Giemsa stains and corneal culture results were performed twice, but no specific pathogen could be detected.
Purpose: The purpose of this study was to compare keratometry and anterior chamber depth (ACD) measurements from the Lenstar LS 900 (Haag-Streit AG, Switzerland) and the Pentacam (Oculus, Weltzar, Germany), and compare the keratometry readings of these two systems to a manual keratometer (MK), (Haag-Streit, Switzerland).
Materials And Methods: In this prospective study, keratometry and ACD measurements were obtained in 50 eyes of 50 normal subjects with the Lenstar and the Pentacam. Keratometry was also measured using a MK.
Overnight orthokeratology with two brands of reverse-geometry contact lenses.
Cont Lens Anterior Eye
June 2013
Purpose: To evaluate the refractive and corneal topographical changes of overnight orthokeratology in myopia with two brands of contact lenses.
Methods: Fourty-four eyes of 22 myopic patients with manifest refraction spherical equivalent (MRSE) of -1.00 to -5.
Objectives: We report three cases of corneal melanoma: two without conjunctival primary acquired melanosis or melanoma and one with a history of conjunctival melanoma.
Methods: Report of 3 cases with corneal melanoma and literature review.
Results: Medical records of three patients with the diagnosis of corneal melanoma were reviewed.
Purpose: To determine the efficacy of different Scheimpflug-imaging parameters in discriminating between subclinical keratoconus, keratoconus eyes, and normal eyes.
Setting: Department of Ophthalmology, Ankara University Faculty of Medicine, Ankara, Turkey.
Design: Comparative case series.
Purpose: To prospectively evaluate the elevation and thickness data in patients with different types of refractive errors.
Setting: Department of Ophthalmology, Ankara University Faculty of Medicine, Ankara, Turkey.
Methods: After the refractive errors in 215 consecutive patients were determined, corneal topography measurements with the Pentacam Scheimpflug system were taken in the right eye of all patients and the right eye of 31 healthy emmetropic volunteers.
Background: To evaluate the role of light-induced oxidative mechanisms in the pathogenesis of primary pterygium.
Methods: Pterygium specimens were obtained from 18 eyes of 18 patients undergoing pterygial removal (group A), and normal conjunctival specimens were obtained from 18 eyes of 18 patients undergoing cataract surgery (group B). In all specimens, malondialdehyde (MDA) levels, superoxide dismutase (SOD) and catalase (CAT) activities were studied and compared.
Purpose: We set out to quantify changes in the anterior chamber volume (ACV), anterior chamber depth (ACD) and anterior chamber angle (ACA) measurements obtained by the Pentacam rotating Scheimpflug camera following uneventful phacoemulsification surgery in normotensive eyes with open iridocorneal angles.
Methods: We enrolled 44 eyes of 44 consecutive patients undergoing cataract extraction in this prospective study. Patients with a history of glaucoma, angle-closure glaucoma or any other concurrent ocular disease were excluded.
Purpose: : To describe the deposition rate of tamoxifen in the cornea and observe its impact on the cornea with confocal microscopy.
Methods: : Forty-four eyes of 22 women receiving tamoxifen at a dosage of 20 mg/day for at least 6 months for the adjuvant treatment of breast cancer and 30 eyes of 15 healthy age-matched women were examined for corneal drug deposition by slitlamp after pupil dilation. Ultrasound pachymetry, specular microscopy, in vivo confocal microscopy, and Schirmer tear test were also performed in all patients.
Purpose: : To evaluate corneal structure in eyes with keratoconus by using in vivo confocal microscopy.
Methods: : In a prospective institutional study, 48 eyes of 24 consecutive patients with keratoconus were examined by in vivo confocal microscopy. Forty-four eyes of 22 healthy subjects served as the control.
Purpose: To compare central corneal thickness (CCT) measurements taken with the Pentacam comprehensive eye scanner (CES), noncontact specular microscopy (SM), and ultrasound pachymetry (UP) in normal and keratoconic corneas.
Setting: Department of Ophthalmology, Ankara University School of Medicine, Ankara, Turkey.
Methods: In a prospective study, 3 CCT measurements were taken with the Pentacam CES, SM, and UP in that sequence from 1 eye of 45 consecutive patients with myopia (group A) and 62 consecutive patients with keratoconus (group B).
Purpose: To evaluate the activity of the antioxidative enzyme superoxide dismutase (SOD) in the anterior lens capsule of patients with cataract complicating pseudoexfoliation syndrome (PEX) in an attempt to determine the role of the oxidative mechanisms in the etiopathogenesis of this disorder.
Setting: Departments of Ophthalmology and Biochemistry, Ankara University School of Medicine, Ankara, Turkey.
Methods: At the beginning of phacoemulsification surgery, the anterior lens capsules in 21 eyes with PEX and cataract (group A) and those in 24 eyes with cataract alone (group B) were collected with continuous curvilinear capsulorhexis and were frozen at -20 degrees C.
Purpose: To introduce a new technique of conjunctival reconstruction after primary pterygium excision, and to evaluate the efficacy of combined "symmetrical conjunctival flap transposition" and intraoperative low-dose mitomycin C application in preventing recurrence of primary pterygium.
Methods: In a prospective, non-comparative case series, 43 eyes of 41 consecutive patients with primary pterygium were studied. In all patient eyes, after excision of pterygia, 0.
Purpose: To describe a patient with keratoconus who underwent Intacs surgery to one eye with an unsatisfactory result and refused to undergo an Intacs removal procedure.
Methods: Case report.
Results: The patient's eye was fitted with a soft contact lens for visual rehabilitation 5 months after Intacs placement.
Purpose: To evaluate the characteristics and evolution of corneal morphologic changes induced by systemic amiodarone treatment by using in vivo slit scanning confocal microscopy in an attempt to understand the pathogenesis of corneal and other systemic side effects of this drug.
Methods: Forty-nine eyes of 25 consecutive subjects receiving amiodarone therapy (group A) and 26 eyes of 13 age- and sex-matched healthy control subjects (group B) were enrolled in the study.
Results: In group A, the mean dosage of amiodarone was 224.
Purpose: To report a case of cystoid macular edema (CME) in iridocorneal endothelial syndrome.
Methods: Case report.
Results: The authors describe the clinical history and ocular examination of a 38-year-old woman with iridocorneal endothelial syndrome and CME.
In vivo confocal microscopy of megalocornea with central mosaic dystrophy.
Clin Exp Ophthalmol
February 2005
In vivo confocal microscopy was performed on the central cornea of both eyes of a patient with megalocornea and central mosaic dystrophy. In the stroma, starting just below Bowman's membrane, polygonal, moderately reflective areas of opacification separated by diagonal hyporeflective striations were observed. The opaque areas appeared smaller in the anterior stromal layers and seemed to get larger towards the posterior stroma.
View Article and Find Full Text PDFPurpose: To evaluate the safety and efficacy of Focus Night & Day extended-wear contact lenses when used for therapeutic purposes.
Methods: Fifty eyes of 50 consecutive patients presenting at the Ankara University Medical Center, Cornea and Contact Lens Service, and requiring bandage contact lens use for ocular surface disorders, were enrolled. All patients were fitted with Focus Night & Day contact lenses and were followed in regard to patient satisfaction, contact lens fit and performance, and success of treatment.
Purpose: To evaluate the changes in corneal topography after scleral buckling surgery for retinal detachment.
Methods: Twenty-one eyes of 21 patients with the diagnosis of retinal detachment were included in this prospective study. Scleral buckling surgery was performed on all patients.