Evaluation of the effects of different mydriatic drops used on choroidal vascularity in healthy children.

Purpose: To evaluate the effects of mydriatics drops used primarily in routine eye examinations on the choroid tissue, which has a dense vascular network in the eye.

Methods: This prospective observational study included 90 eyes of 90 healthy children. Optical coherence tomography (OCT) images were obtained for all children before dilation.

Retinopathy of prematurity screening: can the examination time be reduced?

Clinical Relevance: Retinopathy of prematurity (ROP) is a significant cause of childhood blindness. Screening examinations that maintain accuracy, while improving the experience for families, could increase adherence to follow-up and decrease workload.

Background: Traditional ROP screening examinations are known to be uncomfortable for babies and stressful for parents.

Examination of the Corneal Endothelium in Pediatric Patients With COVID-19.

Purpose: To investigate the effects of coronavirus disease 2019 (COVID-19) infection on the corneal endothelium in children.

Methods: This retrospective study included 46 pediatric patients with COVID-19 infection and 38 healthy controls. Specular microscopy measurements were analyzed, and measurements were obtained from images showing at least 100 cells with clear borders.

Effect of Irrigation Solution Temperature on the Corneal Endothelial Functions in Posterior Vitrectomy: Room Temperature Versus Cooled.

Purpose: To compare the effects of cooled and room temperature irrigation on the preoperative and early postoperative corneal endothelial parameter values in posterior vitrectomy.

Materials And Methods: In this prospective, randomized, comparative study, 68 patients underwent a standard 3-port, 23-G posterior vitrectomy operation by a single surgeon. Cooled irrigation solution was applied to 36 patients during surgery (group 1), and room temperature irrigation solution was applied to 32 patients (group 2).

Evaluation of the retina with optical coherence tomography angiography (OCTA) in patients with coronavirus (COVID-19) infection.

Purpose: The goal of this study is to compare the optical coherence tomography angiography (OCTA) findings in Coronavirus (COVID-19) positive adult and pediatric patients with those of healthy volunteers with the same demographic characteristics.

Methods: The right eye of 157 adults infected with covid, 168 healthy adult volunteers, 40 children (6-18 years of age) infected with covid, and 44 healthy children (6-18 years of age) were included in this prospective study. All participants underwent ophthalmological examination and OCTA.

Challenges in pediatric cataract surgery: comparison of intraocular lens power calculation formulas using optical biometry.

Purpose: Comparison of the accuracy of intraocular lens (IOL) power calculation formulas (SRK II, SRK/T, Holladay 1, Hoffer Q and Barrett II Universal, Haigis) in pediatric cataract surgery using optical biometry.

Method: This prospective study included seventy eyes of 70 patients between ages of 3-15 who had undergone cataract surgery with IOL implantation. Anterior segment parameters and axial length (AL) were measured with an optical biometer.

Outcomes of customized topographic guided epithelial debridement for corneal collagen cross-linking.

Purpose: To evaluate the outcomes of corneal collagen cross-linking performed with customized epithelial debridement technique in progressive keratoconic corneas.

Materials And Methods: Forty eyes of 40 patients were included in the study. We performed an ophthalmologic examination and recorded the uncorrected visual acuity, best corrected visual acuity (BCVA), central corneal thickness at the thinnest point (t-CCT), flat meridian keratometry (K1), steep meridian keratometry (K2), endothelial cell density (ECC), hexagonal cells (HEX), and coefficient of variation of cell areas (CV) measured preoperatively and at the 1st, 3rd, 6th and 12th months postoperatively.

Comparison of retinopathy of prematurity incidence between Turkish citizens and Syrian refugees.

Purpose: More than 3.5 million Syrians came to Turkey seeking refuge and over 470,000 Syrian infants were born since the start of the civil war in 2011. Our aim is to compare the incidence of retinopathy of prematurity (ROP) between Syrian refugees and Turkish citizens.

Increased Expressions of ICAM-2 and ICAM-3 in Pterygium.

: Pterygium, one of the most common ocular surface diseases, is characterized by inflammatory infiltrates, proliferation, angiogenesis, fibrosis, and extracellular matrix breakdown. The objective of this study was to elucidate the levels of the intercellular adhesion molecule (ICAM)-2, and ICAM-3 gene and protein expressions in pterygium. : A total of 59 patients with pterygium were included in this study.

A new surgical technique for scleral fixation using a "knot ball" for scleral-fixated intraocular lenses: impact on clinical outcomes.

Purpose: Scleral fixation surgery is a pivotal procedure that depends on the availability of robust and innovative surgical fixation methods. There continues to be a need for innovation in suture fixation techniques, particularly for intraocular lens implantation.

Methods: We conceived and designed a "knot ball" scleral fixation technique for suture burial in a retrospective sample of 108 patients with primary (n=40) or secondary (n=68) scleral-fixated intraocular lens.

Comparison of Bevacizumab and Ranibizumab in the Treatment of Type 1 Retinopathy of Prematurity Affecting Zone 1.

Purpose: To investigate the effects of bevacizumab and ranibizumab in the treatment of type 1 retinopathy of prematurity (ROP) affecting zone 1.

Methods: Files of the patients who received intravitreal bevacizumab (IVB) or ranibizumab (IVR) treatment for ROP affecting zone 1 were evaluated retrospectively. Spherical equivalent (SE) and axial length (AXL) measurements were performed at 1 year of adjusted age.

Comparison of topical and retrobulbar anesthesia in terms of pain experience during silicone oil extraction.

Purpose: To compare the use of topical anesthesia and retrobulbar anesthesia during silicone oil removal with a mixed pars plana technique, through evaluating the pain experience of patients.

Methods: We selected patients according to their behavior during previous vitreoretinal surgery and ophthalmologic examinations and divided them into two anesthesia groups: topical (n=36) and retrobulbar (n=33). We used a mixed technique for the passive removal of silicone oil in both groups.

Doppler ultrasonographic measurement of short-term effects of valsalva maneuver on retrobulbar blood flow.

Background: To investigate the effects of Valsalva maneuver (VM) on retrobulbar blood flow parameters in healthy subjects.

Methods: Participants without any ophthalmologic or systemic pathology were examined in supine position with color and pulsed Doppler imaging for blood flow measurement, via a paraocular approach, in the ophthalmic artery (OA), central retinal artery (CRA), central retinal vein (CRV), nasal posterior ciliary artery (NPCA), and temporal posterior ciliary artery (TPCA), 10 seconds after a 35- to 40-mm Hg expiratory pressure was reached. Peak systolic velocity (PSV), end-diastolic velocity (EDV), pulsatility index (PI), and resistivity index (RI) values were recorded for each artery.

Water pipe (Shisha, Hookah, Arghile) Smoking and Secondhand Tobacco Smoke Effects on CYP1A2 and CYP2A6 Phenotypes as Measured by Caffeine Urine Test.

Public policies to stop or reduce cigarette smoking and exposure to secondhand smoke and associated diseases have yielded successful results over the past decade. Yet, the growing worldwide popularity of another form of tobacco consumption, water pipe smoking, has received relatively less attention. To the best of our knowledge, no study to date has evaluated the effects of water pipe smoking on cytochrome P450 (CYP450) activities and drug interaction potential in humans, whereas only limited information is available on the impact of secondhand smoke on drug metabolism.

Bilateral acute angle-closure glaucoma as a first presentation of granulomatosis with polyangiitis (Wegener's).

We report a case of bilateral acute angle-closure glaucoma in a patient with undiagnosed granulomatosis with polyangiitis (Wegener's). A 59-year-old man presented with a severe headache, ocular pain, blurred vision, shortness of breath, and mild fever. Clinical examination revealed conjunctival chemosis, corneal edema, and shallow anterior chambers.

Dynamic changes in optic disc morphology, choroidal thickness, anterior chamber parameters, and intraocular pressure during Valsalva maneuver.

Purpose: To investigate the effects of the Valsalva maneuver (VM) on optic disc morphology, choroidal thickness, and anterior chamber parameters.

Methods: This prospective observational study included 60 eyes of 60 healthy subjects. The anterior chamber parameters, including central corneal thickness (CCT), anterior chamber depth (ACD), anterior chamber angle (ACA), anterior chamber volume (ACV), pupil diameter (PD), axial length (AL), subfoveal and peripapillary choroidal thickness, optic disc parameters, and intraocular pressure (IOP), were measured at rest and during VM.

The results of 25-gauge vitreoretinal surgery for optic disc pit-associated maculopathy: a report of three cases and mini-review of the literature.

Purpose: We report the outcomes of three consecutive patients with optic disc pit-associated maculopathy who were treated with 25-gauge pars plana vitrectomy, internal limiting membrane (ILM) peeling, fluid-air exchange, barrage endolaser, and sulfur hexafluoride (SF6) gas tamponade.

Case Report: Patients with optic disc pit-associated maculopathy were treated with 25-gauge pars plana vitrectomy followed by ILM peeling, fluid-air exchange, barrage endolaser, and gas tamponade with 20 % SF6. All patients were asked to maintain a facedown position for 3 days postoperatively.

Comparison of pain experience during 23-G vitreoretinal surgery under topical and retrobulbar anesthesia.

The objective of this study is to compare pain and discomfort scores of patients during 23-G vitreoretinal surgery under topical and retrobulbar anesthesia without using sedation. A total of 157 patients with various vitreoretinal disorders were included in this study. Patients were randomly divided into two groups: topical (group 1, n = 76) and retrobulbar anesthesia (group 2, n = 81).

Maximal Levator Muscle Resection for Primary Congenital Blepharoptosis with Poor Levator Function.

Purpose: To evaluate the clinical outcomes of maximal levator muscle resection surgery in patients with poor levator function.

Methods: This prospective study included 29 eyelids of 23 patients who underwent maximal levator resection surgery. Pre- and postoperatively, all patients' routine ophthalmic examination including evaluation of upper eyelid skin crease positions; levator muscle function (LF), rima palpebrarum (RP), and margin-reflex distance (MRD) measurements were recorded.

Intraorbital haematoma during a commercial flight: a case report.

Background: Intraorbital haematoma is a rare clinical entity which can be caused by orbital traumas, neoplasms, surgeries nearby sinuses and orbit, vascular malformations, acute sinusitis, systemic abnormalities, barotrauma and valsalva maneuver.

Case Presentation: A 74-year-old male presented with sudden onset of ocular pain, upper eye lid swelling, proptosis and diplopia after a commercial flight. After complete ophthalmic ocular examination including pupillary light reflexes and laboratory examinations; computed tomography and magnetic resonance imaging of orbit revealed a subperiostal mass-like lesion in the right retrobulbar-extraconal region which was compatible with intraorbital haematoma.

Effects of Valsalva Maneuver on Ocular Biometric Parameters: Optical Low-Coherence Reflectometry Biometer Study.

Purpose: To evaluate the effects of the Valsalva Maneuver (VM) on ocular biometry and intraocular pressure (IOP).

Methods: This prospective observational study included 55 eyes of 55 healthy volunteers. Axial length (AL), central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), corneal curvature (K-steep, K-flat and K-mean), corneal diameter (WtW), and pupil diameter (PD) were measured with a LenStar LS 900® biometer at rest and during VM.

Vision, retinal thickness, and foveal avascular zone size after intravitreal bevacizumab for diabetic macular edema.

Introduction: To investigate three monthly intravitreal bevacizumab (IVB) injections effects in chronic diabetic macular edema (DME).

Methods: A prospective, noncomparative study in which inclusion criteria were; DME with central macular thickness (CMT) of at least 250 μm, and no treatment for diabetic retinopathy (DR) within 4 months before the first injection. All eyes received three monthly 1.

Association of anti-CCP positivity with serum ferritin and DAS-28.

Antibodies to cyclic citrullinated peptides (anti-CCP) are highly specific for the diagnosis of rheumatoid arthritis (RA) with a marginal increased prediction of the disease. In this study, we aimed to investigate the relation of the presence of anti-CCP with clinical manifestations and disease activity in a cohort of RA patients. A total of 61 RA patients were included in this study.