Novel Study on Cryogenic Distillation Process and Application by Using CHEMCAD Simulation.

The purpose of this study was to examine the cryogenic separation process used in air separation plants with the CHEMCAD simulation program. A preliminary analysis was carried out with the literature about the operation of the process. In light of the technical information, the simulation of the cryogenic separation process was utilized with the program.

An evaluation of corneal endothelial cell morphology in patients with thyroid-associated ophthalmopathy.

Introduction: To evaluate corneal endothelial cell morphology in patients with thyroid-associated ophthalmopathy (TAO).

Method: Seventy-two eyes of 36 patients with TAO presenting to the ophthalmology department between January 2018 and January 2022 were included in the study. The findings were compared with 98 eyes of 49 healthy individuals.

Turkish validity and reliability study of "Nursing Students' perceptions of Clinical Stressors Scale".

Background: Clinical education is a significant part of nursing education, but students frequently perceive it as stressful. There is no valid and reliable scale to determine the clinical stressor perceptions of nursing students in Turkey.

Objective: The study aims to adapt the "Nursing Students' Clinical Stressor Perceptions Scale" (NSPCSS) into Turkish and perform its validity and reliability study for nursing students.

Effects on Intravitreal Anti-vascular Endothelial Growth Factor Injections during the COVID-19 Pandemic in the Eastern Black Sea Region of Turkey.

Objectives: To compare the number of intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections performed during 2020 with that in the same period in 2019.

Methods: The study investigated anti-VEGF injections performed in 2019 and 2020. Injections performed on 923 eyes of 858 patients were evaluated.

Changes in optical coherence tomography angiography in patients with vitamin D deficiency.

Purpose: 25-hydroxyvitamin D 25(OH)D] sufficiency has critical biological importance for the human body. Although there are several studies on the association between serum 25(OH)D levels and macular structure, the data in this regard are limited. This study mainly aimed to investigate macular microvascular structure using optical coherence tomography angiography (OCTA) in 25(OH)D deficiency.

Psoriasis and uveitis.

Purpose: Psoriasis, which is a chronic, immune-mediated skin disease of unknown etiology, not only affects the skin, but also is linked to many systemic conditions such as arthritis, cardiovascular disease, depression, and malignancy. Although many types of eye involvement are encountered in psoriasis patients, dry eye is the first among them. Uveitis is an entity that can be associated with psoriasis and can cause severe vision loss as a result of late diagnosis, inadequate and inappropriate treatment.

The clinical use of ultra - Wide field imaging and intravenous fluorescein angiography in infants with retinopathy of prematurity.

Purpose: To investigate the potential benefits and practicality of ultra - wide field (UWF) imaging and intravenous UWF fluorescein angiography (IV UWF - FA) in infants with retinopathy of prematurity (ROP) using an Optos® California device.

Methods: This retrospective study involved 46 infants with a history of ROP who underwent UWF imaging with or without IV UWF - FA. ROP characteristics were identified using UWF color imaging.

Long-Term Follow-Up Results of a Patient Undergoing Acute Retinal Necrosis: A Case Report and Literature Review.

Purpose: To describe the follow-up and treatment approach of a patient with acute retinal necrosis. . A 44-year-old male patient, who had complaints of pain in the right eye and blurred vision, was referred to our clinic.

The role of simple inflammatory blood parameters in idiopathic epiretinal membrane patients.

Aim: To evaluate the neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in idiopathic epiretinal membrane (IERM) patients, and their relations with visual acuity.

Method: Fifty-seven IERM and 51 control patients were included. All patients underwent comprehensive ophthalmological examination and complete blood count tests, and NLR and PLR values were calculated.

The efficacy of subthreshold micropulse yellow laser (577 nm) in chronic central serous chorioretinopathy.

Central serous chorioretinopathy (CSC) is a disease characterized by a well-defined serous detachment of the neurosensory retina. Therapeutic options in chronic cases are limited, and side effects can result in a limited response. The aim of this article is to assess the efficacy of subthreshold micropulse laser therapy in patients with chronic central serous chorioretinopathy.

Ultra-widefield fundus fluorescein angiography findings in patients with ankylosing spondylitis experiencing uveitis.

Aim: To evaluate ultra-widefield fundus fluorescein angiography (FFA) findings in cases of ankylosing spondylitis (AS)-associated uveitis.

Materials And Methods: Forty-five eyes of 23 AS patients followed up with a diagnosis of uveitis were included.

Results: Sixteen (69.

Characteristics and Seasonal Variations of Rhegmatogenous Retinal Detachment in the Eastern Black Sea Region of Turkey: 8-Year Results.

Objectives: To assess seasonal variations in the incidence of rhegmatogenous retinal detachment (RRD) in the Eastern Black Sea region of Turkey.

Materials And Methods: Patients presenting due to primary RRD to a university hospital operating as a reference clinic in the region between 2011 and 2018 were evaluated retrospectively. Patients' ages, sex, affected eye, and presentation times were recorded.

Repeatability and Agreement of Macular Thickness Measurements Obtained with Two Different Scan Modes of the Optovue RTVue Optical Coherence Tomography Device.

Objectives: To evaluate the repeatability and agreement of macular thickness measurements obtained with E-MM5 and MM6, two different scan modes, on the Optovue RTVue optic coherence tomography (OCT) device.

Materials And Methods: Three consecutive macular thickness measurements in 30 healthy volunteers were taken using the OCT device E-MM5 and MM6 scan modes. The repeatability and agreement of these measurements obtained from the two scan modes and divided into nine anatomical regions based on early treatment diabetic retinopathy study were subjected to statistical analysis.

ACCIDENTAL DUPLICATION: Investigation of the effect of hemoglobin F and A levels on development of retinopathy of prematurity.

The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.

Investigation of the effect of hemoglobin F and A levels on development of retinopathy of prematurity.

Purpose: To investigate the effect of hemoglobin F (HbF) and hemoglobin A (HbA) levels on development of retinopathy of prematurity (ROP) in premature infants.

Methods: In this prospective study, blood samples were collected from the side of the heel of 49 premature infants at postnatal months 0, 1, 2, and 3. HbF and HbA levels were measured in all samples and analyzed statistically.

Evaluation of Retinal Changes Using Optical Coherence Tomography in a Pediatric Case of Susac Syndrome.

Susac syndrome is a rare occlusive vasculopathy affecting the retina, inner ear and brain. The cause is unknown, although it generally affects young women. This syndrome can be difficult to diagnose because its signs can only be revealed by detailed examination.

Bilateral acute angle closure developing due to use of ipratropium bromide and salbutamol.

Acute angle closure can be seen as a side effect of some medications that can be used systemically. In this article, clinical characteristics of 54-year-old female patient who applied to our clinic with bilateral acute angle closure and has been received nebulized form of salbutamol and ipratropium bromide due to asthma for 4 days was evaluated. Right and left eye IOP were measured as 50 and 48 mmHg.

Developments and current approaches in the treatment of pterygium.

Purpose: To assess and compare the studies conducted in the literature with recurrence rates and the summary of the justified treatment approaches be presented.

Method: Pterygium, a fibrovascular tissue that proceeds from the bulbar conjunctiva towards the cornea, is quite a commonly seen ocular surface deterioration. The treatment is performed through a surgical excision, and the frequent recurrence of this disorder, despite the developments of today, is the major problem experienced in the wake of the surgery.

Determination of regional screening criteria for retinopathy ofprematurity in the Eastern Black Sea region of Turkey.

Background/aim: To establish a regional screening protocol for retinopathy of prematurity (ROP).

Materials And Methods: Data were analyzed from the hospital records of 1241 infants with gestational age (GA) at birth ≤36 weeks and birth weight (BW) of ≤3600 g.

Results: The mean GA of the infants was 32.

The effectiveness and reliability of posterior sub-Tenon triamcinolone acetonide injection in branch retinal vein occlusion-related macular edema.

Objective: To investigate the effectiveness and reliability of posterior sub-Tenon triamcinolone acetonide (PSTA) application in branch retinal vein occlusion (BRVO)-related macular edema.

Methods: Patients with confirmed BRVO-related macular edema were enrolled in the study. Patients were injected with a single, therapeutic dose of 40 mg PSTA.

Pulsatile ocular blood flow changes after panretinal photocoagulation treatment in patients with proliferative diabetic retinopathy.

Background/aim: To prospectively assess the effects of panretinal photocoagulation (PRP) treatment on pulsatile ocular blood flow (POBF) in patients with proliferative diabetic retinopathy (PDRP).

Materials And Methods: The study included 40 eyes with PDRP in 27 patients. The PRP treatments were completed in 3 sessions with 3-week intervals.

Evaluation of the Repeatability and the Reproducibility of AL-Scan Measurements Obtained by Residents.

Purpose. To assess the repeatability and reproducibility of ocular biometry and intraocular lens (IOL) power measurements obtained by ophthalmology residents using an AL-Scan device, a novel optical biometer. Methods.

Identification of suitable fundus images using automated quality assessment methods.

Retinal image quality assessment (IQA) is a crucial process for automated retinal image analysis systems to obtain an accurate and successful diagnosis of retinal diseases. Consequently, the first step in a good retinal image analysis system is measuring the quality of the input image. We present an approach for finding medically suitable retinal images for retinal diagnosis.