Acute effect of cigarette smoking on pupil size and ocular aberrations: a pre- and postsmoking study.

Aim. To evaluate the acute effects of cigarette smoking on photopic and mesopic pupil sizes and wavefront aberrations. Methods.

Short-term effects of a single intravitreal bevacizumab injection on retinal vessel calibre.

Purpose:   The aim was to investigate the short-term effects of a single intravitreal bevacizumab injection on the retinal vessel calibre in patients with neovascular age-related macular degeneration and in patients with diabetic macular oedema.

Methods:   Twelve patients with neovascular age-related macular degeneration and eight patients with diabetic macular oedema were included in the study. All patients received an intravitreal injection of 1.

Comparison of non-contact methods for the measurement of central corneal thickness.

Background And Objective: This study examined the repeatability of and agreements between central corneal thickness measurements obtained by four different non-contact pachymetry devices.

Patients And Methods: Seventy-eight eyes of 39 subjects were included. Central corneal thickness of each eye was measured by Visante optical coherence tomography (OCT) (Carl Zeiss Meditec Inc.

Corneal biomechanical properties of patients with pseudoexfoliation syndrome.

Purpose: To assess the corneal biomechanical properties of patients with pseudoexfoliation syndrome (PEX syndrome).

Methods: Fifty-two eyes of 52 patients (27 unilateral and 25 bilateral) and 42 eyes of 42 age-matched control subjects were enrolled in the study. Metrics of corneal biomechanical properties, including corneal hysteresis (CH) and corneal resistance factor (CRF), were measured with the ocular response analyzer (ORA).

Fundus autofluorescence in acute and chronic central serous chorioretinopathy.

Background: A prospective evaluation of the pattern of fundus autofluorescence in cases of acute versus chronic central serous chorioretinopathy (CSR).

Methods: A prospective, cross-sectional, single-centre investigation was performed using three diagnostic techniques, namely, fundus autofluorescence, optical coherence tomography and fundus fluorescein angiography to evaluate a sample of patients (n = 42 eyes) with both acute (n = 25 eyes) and chronic (n = 17 eyes) CSR.

Results: Hypoautofluoresecence was found in 80 per cent (20 eyes) and 88.

Glutathione S-transferase M1, GSTT1 and GSTP1 genetic polymorphisms and the risk of age-related macular degeneration.

Purpose: To determine the possible effects of glutathione S-transferase (GST) M1, GSTT1 and GSTP1 genetic polymorphisms on the risk of developing age-related macular degeneration (AMD).

Patients And Methods: This case-control study included a total of 120 patients with AMD (65 with dry-type AMD and 55 with wet-type AMD) and 198 disease-free controls. GSTM1 and GSTT1 polymorphisms were analyzed by using a multiplex polymerase chain reaction (PCR), and GSTP1 polymorphism was detected by real-time PCR assay.

Anterior segment optical coherence tomography findings of acute hydrops in a patient with keratoconus.

The authors describe the anterior segment optical coherence tomography (AS-OCT) findings of a 25-year-old patient with acute hydrops associated with keratoconus. The patient presented with decreased visual acuity, pain, and redness in the left eye. The symptoms, clinical presentation, and topographical findings of the right eye confirmed this condition to be acute corneal hydrops.

The importance of lacrimal diaphragm and periosteum suturation in external dacryocystorhinostomy.

Purpose: To evaluate retrospectively the cosmetic and functional effects on success of lacrimal diaphragm and periosteum suturation after the anastomosis of anterior flaps before skin closure in external dacryocystorhinostomy (ext-DCR).

Methods: During ext-DCR, lacrimal diaphragm was separated from periosteum over anterior lacrimal crest before entering lacrimal fossa. At the end of ext-DCR, the separated periosteum and lacrimal diaphragm were sutured in the study group (270 patients) and were left unsutured in the age-matched control group (96 patients).

Assessment of anterior chamber depth using Visante optical coherence tomography, slitlamp optical coherence tomography, IOL Master, Pentacam and Orbscan IIz.

Aims: To assess and compare the anterior chamber depth (ACD) by different anterior segment imaging techniques.

Methods: Eighty healthy eyes of 40 patients were recruited, and 3 consecutive measurements of ACD were determined prospectively utilizing Visante optical coherence tomography (OCT), slitlamp (SL) OCT, IOL Master, Pentacam and Orbscan IIz. The statistical significance of interdevice differences between measurements was evaluated by one-way ANOVA and Bland-Altman analysis.

Multifocal electroretinogram and central visual field testing in central areolar choroidal dystrophy.

Purpose: To study multifocal electroretinogram (mfERG) and its relation to retinal sensitivity assessed by Humphrey visual field (HVF) analysis in central areolar choroidal dystrophy (CACD).

Methods: Seven eyes of 4 patients with CACD and 15 normal control subjects were examined. mfERG and central 30/2 HVF were tested for each participant.

Assessment and comparison of anterior chamber dimensions using various imaging techniques.

Background And Objective: To assess and compare the horizontal dimensions of the anterior chamber by different anterior segment imaging techniques.

Patients And Methods: Eighty eyes of 40 patients without any ocular disease or previous ocular surgery were recruited and three consecutive measurements of internal anterior chamber diameter and white-to-white distance (WTW) parameters were determined.

Results: Mean internal anterior chamber diameter was 11.

Quantitative assessment of anterior chamber parameters in pigmentary glaucoma using slit-lamp optical coherence tomography.

Purpose: To quantitatively assess the parameters of anterior chamber and angle dimensions by slit-lamp optical coherence tomography (SL-OCT) in eyes with pigmentary glaucoma (PG).

Methods: A total of 18 eyes of 11 patients with PG and 18 eyes of 11 healthy volunteers were included in the study. Anterior chamber depth (ACD), anterior chamber volume (ACV), spur distance (internal horizontal anterior chamber diameter), central corneal thickness (CCT), angle opening distance at 500 microm from the scleral spur (AOD 500), and trabecular iris space area at 500 microm from the scleral spur (TISA 500) parameters were detected by SL-OCT.

Changes in intraocular pressure, and corneal and retinal nerve fiber layer thickness during hemodialysis.

The aim of this study is to evaluate the changes in intraocular pressure (IOP), central corneal thickness (CCT), and retinal nerve fiber layer thickness (RNFLT) in patients with chronic renal failure undergoing hemodialysis (HD). A complete ophthalmological examination together with IOP, CCT, and RNFLT measurements were performed for each patient both before and after HD sessions. RNFLT parameters were detected by scanning laser polarimeter.

Assessment of anterior chamber angle using Visante OCT, slit-lamp OCT, and Pentacam.

Purpose: To assess and compare the anterior chamber angle (ACA) by different anterior segment imaging techniques.

Methods: Forty healthy eyes of 40 normal subjects were recruited and 3 consecutive measurements of ACA were determined prospectively utilizing Visante optical coherence tomography (OCT), slit-lamp OCT (SL-OCT), and Pentacam. Statistical significance of interdevice differences between measurements was evaluated by Wilcoxon signed rank test and Bland-Altman analysis.

Comparison of IOP measurement by ocular response analyzer, dynamic contour, Goldmann applanation, and noncontact tonometry.

Purpose: To assess the agreement among ocular response analyzer (ORA), dynamic contour tonometry (DCT), Goldmann applanation tonometry (GAT), and noncontact tonometry (NCT), and to determine the effects of central corneal thickness (CCT) and corneal hysteresis (CH) on intraocular pressure (IOP) measurements with these devices.

Methods: Sixty healthy volunteers were recruited. The average of ORA (corneal compensated IOP [IOP-ORAcc] and Goldmann-correlated IOP [IOP-ORAg]), DCT, GAT, and NCT levels were compared and the devices were examined with respect to CCT and CH.

Diurnal variation of corneal biomechanics and intraocular pressure in normal subjects.

Purpose: To assess and investigate the relationship between diurnal variations in intraocular pressure (IOP) and biomechanical properties of cornea.

Methods: Sixty-two healthy volunteers were recruited. Corneal compensated IOP (IOPcc), Goldmann-correlated IOP (IOPg), corneal resistance factor (CRF), and corneal hysteresis (CH) parameters were recorded by the Ocular Response Analyzer (ORA).

Correlation of retinal sensitivity and retinal thickness in central serous chorioretinopathy.

Aim: To evaluate the correlation of microperimetry (MP) and optical coherence tomography (OCT) in eyes having acute onset of central serous chorioretinopathy (CSCR).

Methods: After a detailed ophthalmological examination, all cases were evaluated by fundus fluorescein angiography, OCT and MP. Mean macular thickness was detected by OCT.

Immediate evaluation of the flaps created by femtosecond laser using anterior segment optical coherence tomography.

Background And Objective: To demonstrate the practical and functional evaluation of flaps created intraoperatively by femtosecond laser using anterior segment optical coherence tomography (AS-OCT).

Patients And Methods: The study prospectively examined 11 eyes of 6 patients who underwent uneventful LASIK surgery with the aid of the IntraLase femtosecond laser (IntraLase Corp., Irvine, CA).

Quantitative assessment of anterior chamber volume using slit-lamp OCT and Pentacam.

Purpose: To quantitatively assess and compare the anterior chamber volume (ACV) by different anterior segment imaging techniques.

Methods: Forty healthy eyes of 40 patients were recruited and three consecutive measurements of ACV were determined prospectively utilizing SL-OCT and Pentacam. Statistical significance of interdevice differences between measurements was evaluated by unpaired t test and Bland-Altman analysis.

Anterior segment optical coherence tomography measurement of anterior chamber depth and angle changes after phacoemulsification and intraocular lens implantation.

Purpose: To use anterior segment optical coherence tomography (AS-OCT) to evaluate anterior chamber depth (ACD) and angle after phacoemulsification and intraocular lens (IOL) implantation.

Setting: Department of Ophthalmology, Yeditepe University, Istanbul, Turkey.

Methods: Forty-seven eyes (37 patients) had uneventful phacoemulsification and IOL implantation through a clear corneal incision.

Atypical presentation of multiple evanescent white dot syndrome (MEWDS).

Purpose: To present fundus autofluorescence (FAF), indocyanine green angiography (ICGA), and microperimetry (MP) findings of a patient with multiple evanescent white dot syndrome (MEWDS).

Methods: Observational case report.

Results: A 30-year-old woman with blurry vision was referred for evaluation.

A case of sterile endophthalmitis after repeated intravitreal bevacizumab injection.

Purpose: The aim of this study was to describe a case of sterile endophthalmitis after repeated intravitreal bevacizumab injections for the treatment of choroidal neovascularization secondary to angioid streaks.

Methods: This study was done as a case report.

Results: A 57-year-old man who received a third injection of intravitreal bevacizumab for the treatment of choroidal neovascularization owing to angioid streaks developed sterile endophthalmitis.

Treatment of cystoid macular edema due to acute posterior multifocal placoid pigment epitheliopathy.

Purpose: To report a case of unilateral late-presenting acute posterior multifocal placoid pigment epitheliopathy (APMPPE) with CME evaluated before and after administration of IVTA.

Method: A 29-year-old male diagnosed as APMPPE with CME was treated with IVTA.

Results: Fundus examination revealed CME and sequelae APMPPE lesions without involvement of posterior pole.