Results 21 to 30 of about 16,330 (213)

Assessment of central and peripheral contrast sensitivity in myopes using Spaeth/Richman contrast sensitivity

Oman Journal of Ophthalmology
BACKGROUND: Assessing central and peripheral contrast sensitivity (CS) in myopic patients with varying degrees of refractive error using Spaeth/Richman contrast sensitivity test (SPARCS) and compared it with emmetropic individuals. MATERIALS AND METHODS:
Parul Ichhpujani, Uday Pratap Singh Parmar, Rohan Bir Singh, Suresh Kumar   +3 more
doaj   +1 more source

Dyschromatopsia and contrast sensitivity changes in COVID-19 patients

Indian Journal of Ophthalmology, 2023
Purpose: To evaluate the alterations in the psycho-physical tests, contrast sensitivity (CS) and hue discrimination (total estimation score, TES) in COVID-19 patients.
Aditi Sharma, Aditya Singh, Yashik Bansal, Aditi Mohan, Ramya Gnanaraj, Pranita Khulbe, Kavita Pangtey, Kaushiki Tripathi, Mohammad Ali Khan, Akshita Sharma, Manish Jain   +10 more
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks, Molly Sonenklar, Cerelia Donald, Cecelia Valrie, Wally Smith, India Sisler   +5 more
wiley   +1 more source

Effects of astigmatic defocus on binocular contrast sensitivity. [PDF]

PLoS ONE, 2018
PURPOSE:To determine the effects of astigmatism on contrast sensitivity (CS). METHODS:Eighteen normal volunteers (30.5 ± 6.0 [mean ± SD] years) were recruited. After correcting each refractive error by spectacles, against-the-rule (ATR) or with-the-rule (
Yumi Hasegawa, Takahiro Hiraoka, Shinichiro Nakano, Fumiki Okamoto, Tetsuro Oshika   +4 more
doaj   +1 more source

Factors influencing contrast sensitivity function in myopic eyes. [PDF]

PLoS ONE, 2014
To evaluate the factors affecting the area under the log contrast sensitivity function (AULCSF) in healthy myopic eyes.We retrospectively examined 201 eyes of 201 consecutive subjects (age, 31.8 ± 7.4 years (mean ± standard deviation)) with myopic ...
Kazutaka Kamiya, Kimiya Shimizu, Ayaka Iijima, Hidenaga Kobashi   +3 more
doaj   +1 more source

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier, Brittany Grantham, Camilla Grud Nielsen, Louise Lundgren, Liv Andrés‐Jensen, Kjeld Schmiegelow, Chris Selman, Gareth Ball, Elyse Passmore, David A. Elliott, Rachel Conyers   +10 more
wiley   +1 more source

Contrast Enhancement Using Sensitivity Model-Based Sigmoid Function

IEEE Access, 2019
For indirect contrast enhancement, researchers have proposed various transformation functions based on histogram equalization and gamma correction.
Seung Park, Yong-Goo Shin, Sung-Jea Ko
doaj   +1 more source

Contrast sensitivity and higher-order aberrations in Keratoconus subjects

Scientific Reports, 2021
This study analyzes the relationship between contrast-sensitivity and higher-order aberrations (HOA) in mild and subclinical-keratoconus in subjects with good visual-acuity (VA).
Einat Shneor, David P. Piñero, Ravid Doron   +2 more
doaj   +1 more source

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar, Karen Thibaudeau, Mary Mathias, Heather McDaniel, Madlen Reschke, Klaus Tenbrock, Joseph M. Parker, Amy Shapiro   +7 more
wiley   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source