Microplastic Release from Single-Use Plastic Beverage Cups.

Microplastics (MPs) have attracted considerable attention as one of the most remarkable food and drink pollutants in recent years. Disposable cups, which are widely used as single-use containers, have been suspected as the primary sources of MPs found in cold and hot beverages. In this study, the effect of different exposure times (0, 5, 10 and 20 min) and temperatures (4 °C, 50 °C and 80 °C) on MP release from the single-use cups made of four different materials [polypropylene (PP), polystyrene (PS), polyethylene (PE) coated paper cups and expanded polystyrene (EPS)] into the water was investigated.

A cross-sectional study investigating the effects of argon laser retinal photocoagulation on lens clarity and corneal endothelial cells.

Background: The mechanism of argon laser retinal photocoagulation (ALRP) treatment is to apply thermal-induced retinal pigment epithelium damage. Light passes through the anterior optical segments of the eye to reach the retina. Lens densitometry is a noninvasive and quantitative measurement providing information about corneal and lens clarity.

Corneal and lenticular clarity in children with inflammatory disease as assessed by Scheimpflug imaging.

Background: Corneal and lenticular optical properties are not well-documented in pediatric patients with inflammatory diseases. Here we aimed to evaluate corneal and lenticular optical density as well as corneal morphology in children with ocular and/or systemic inflammation by Scheimpflug imaging.

Methods: Fifty-five eyes of 29 children with non-infectious uveitis, 56 eyes of 28 children with systemic inflammation without uveitis and 60 eyes of 31 healthy children were included.

Choroidal vascularity index and thickness in sarcoidosis.

Sarcoidosis is a multisystem granulomatous disease which is observed worldwide. Sarcoidosis is one of the common causes of ocular inflammation. The choroidal vascularity index, defined as the ratio of the luminal area to the total choroidal area, is used as one of the biomarkers for assessing the choroid vascular state.

Alterations in retinal and choroidal thickness following nonarteritic anterior ischemic optic neuropathy.

Purpose: To show alterations of retinal arteriolar caliber (RAC), retinal venular caliber (RVC), retinal nerve fiber layer thickness (RNFLT), peripapillary choroidal thickness (ppCT), and central macular thickness (CMT) in acute and chronic phases of nonarteritic anterior ischemic optic neuropathy (NAION).

Methods: Forty-one eyes of 41 patients with NAION were included in this retrospective study. RAC, RVC, RNFLT, ppCT, and CMT measurements were performed via spectral-domain optical coherence tomography in the acute and chronic phases of NAION.

Relationship of Sighting Ocular Dominance with Macular Photostress Test Time and Thickness of the Middle Macular Layers.

Significance: The mechanisms of sighting ocular dominance, which is particularly important in monovision therapies and sports vision, are not fully understood yet. Whether the macula affects ocular dominance or ocular dominance affects the macula is also a subject of interest.

Purpose: The aim of this study was to investigate the relationship of sighting ocular dominance with macular photostress test time and middle macular layer thickness.

Corneal and anterior chamber morphology in patients with nonınfectious ıntraocular ınflammation.

Purpose: To evaluate the corneal and anterior chamber morphology in phakic eyes with noninfectious intraocular inflammation.

Methods: This study included 59 eyes with active uveitis, 62 with inactive uveitis, and 95 healthy eyes. Corneal endothelial cell density, hexagonal cell ratio, coefficient of variation (CV), corneal thickness and volume, maximum keratometry, and anterior chamber volume and depth (ACD) measurements were performed using a specular microscope and Pentacam HR.

Enhanced Ectasia Screening in Patients with Uveitis and Isolated Systemic Inflammatory Disease.

Purpose: To investigate corneal topographic alterations in patients with uveitis and isolated systemic inflammatory disease (SID).

Methods: This retrospective cross-sectional study included 44 patients with uveitis with anterior chamber inflammation (uveitis group), 39 subjects with isolated SID, and 91 healthy controls (control group). Topographic images were classified as "normal," "keratoconus (KC) suspect" and "KC" based on maps of axial curvature, corneal thickness, front and back elevation in combination with Belin/Ambrósio Enhanced Ectasia Display (BAD).