Publications by authors named "Carl Abraham"

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A Qualitative Assessment of Low Vision Care Among Optometric Practitioners in Sub-Saharan Africa Using a Health Systems Framework.
Carl Halladay Abraham, Diane van Staden, Nishanee Rampersad

Health Serv Insights· December 2025

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Association between near visual display device usage and the eye's accommodation and vergence parameters: a cross-sectional study of high school children in Cape Coast, Ghana.
Charles Darko-Takyi, Thomas Welbeck Mills, Samuel Bert Boadi-Kusi, Michael Ntodie, Carl Halladay Abraham

BMJ Public Health· October 2025

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Exploring reduction of prolonged binocular vision testing time: the agreement between the first and second thirty seconds within one minute of accommodative and vergence facility tests.
Charles Darko-Takyi, Sandra Owusu, Emmanuel K Abu, Carl H Abraham, Michael Ntodie

Strabismus· September 2025

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No agreement between expected phoropter Risley prism and prism bar fusional vergences in a prospective cross-sectional study of African school children.
Charles Darko-Takyi, Kumi Owusu Boakye, Stephen Ocansey, Carl Halladay Abraham, Edward Okyere Kyeretwie

Strabismus· June 2025

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The Association Between Occupational Smoke Exposures and the Prevalence of Eye and Respiratory Health Conditions Among Commercial Fish Smokers in Abuesi, Ghana: A Cross-Sectional Self-Reported Study.
Charity Owusu, Albert Ofori, Frank Adusei-Mensah, Carl Halladay Abraham, Samuel Kyei

Environ Health Insights· January 2025

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Global burden of fall and associated factors among individual with low vision: A systematic-review and meta-analysis.
Kingsley Ekemiri, Chioma Ekemiri, Ngozika Ezinne, Victor Virginia, Osaze Okoendo, Carl Abraham

PLoS One· July 2024

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Simulation of visual impairment in persons with normal vision for scientific research.
Carl Halladay Abraham, Godfred Sakyi-Badu, Samuel Bert Boadi-Kusi, Enyam Morny, Charles Darko-Takyi

Ophthalmic Physiol Opt· March 2024

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Barriers and enablers to low vision care and rehabilitation in sub-Saharan Africa within a global context.
Carl Halladay Abraham, Diane van Staden, Nishanee Rampersad

Clin Exp Optom· January 2024

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Central contrast sensitivity perimetry discriminates between glaucomatous and non-glaucomatous eyes.
Emmanuel Kwasi Abu, Carl Halladay Abraham, Albert Kofi Dadzie, Enyam Amewuho Morny, Michael Ntodie

Ther Adv Ophthalmol· October 2023

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The effect of filters and varying illumination on contrast sensitivity in eyes with moderate to severe visual impairment.
Carl Halladay Abraham, Enyam Morny, Asantewaa Aboagye-MacCarthy, Stephen Ocansey, Michael Ntodie

Int Ophthalmol· September 2023

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Associations between personality traits and adherence to treatment in patients with primary open-angle glaucoma in an African population.
Emmanuel K Abu, Ebenezer O Antiri, Stephen Ocansey, Michael Ntodie, Samuel Abokyi, Carl Halladay Abraham

Clin Exp Optom· July 2023

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Refractive error correction among urban and rural school children using two self-adjustable spectacles.
Stephen Ocansey, Rufaida Amuda, Carl Halladay Abraham, Emmanuel Kwasi Abu

BMJ Open Ophthalmol· April 2023

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Dry eye symptom questionnaires show adequate measurement precision and psychometric validity for clinical assessment of vision-related quality of life in glaucoma patients.
Stephen Ocansey, Ebenezer Oduro Antiri, Carl Haladay Abraham, Emmanuel Kwasi Abu

PLoS One· March 2023

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Case Series: Avoidable Blindness after Inappropriate Ophthalmic Self-medication in Ghana.
Asantewaa Aboagye-MacCarthy, Carl Halladay Abraham

Optom Vis Sci· February 2023

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Smartphone usage among people living with severe visual impairment and blindness.
Carl Halladay Abraham, Bert Boadi-Kusi, Enyam Komla Amewuho Morny, Prince Agyekum

Assist Technol· September 2022

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Assessment of four validated questionnaires for screening of dry eye disease in an African cohort.
Alex Ilechie, Thomas Mensah, Carl Halladay Abraham, Naa Adjeley Addo, Michael Ntodie

Cont Lens Anterior Eye· April 2022

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Accuracy of Noncycloplegic Refraction for Detecting Refractive Errors in School-aged African Children.
Alex Azuka Ilechie, Naa Adjeley Addo, Carl Halladay Abraham, Andrew Owusu-Ansah, Alex Annan-Prah

Optom Vis Sci· August 2021

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Socio-demographic factors modify awareness, knowledge, and perceived risk of glaucoma in rural and urban residents in Ghana: a population-based survey.
Stephen Ocansey, Emmanuel K Abu, Carl Halladay Abraham, Andrews Owusu-Ansah, Caleb Acheampong

Ther Adv Ophthalmol· March 2021

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Oral consumption of Garcinia kola(Bitter kola) lowers intraocular pressure.
Alex A Ilechie, Mohammed M Jeduah, Carl H Abraham, Stephen Ocansey, Emmanuel Abu

Acta Ophthalmol· December 2020

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Ocular Symptoms of SARS-CoV-2: Indication of Possible Ocular Transmission or Viral Shedding.
Stephen Ocansey, Emmanuel Kwasi Abu, Carl Halladay Abraham, Andrew Owusu-Ansah, Samuel Bert Boadi-Kusi

Ocul Immunol Inflamm· November 2020

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Inter-regional trends in causes of childhood blindness and low vision in Ghana.
Alex Ilechie, Seth Wanye, Carl H Abraham, Josiah B Sarpong, Emmanuel Abu

Clin Exp Optom· September 2020

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Normative Values of Retinal Nerve Fibre Layer Thickness and Optic Nerve Head Parameters and Their Association with Visual Function in an African Population.
Stephen Ocansey, Emmanuel Kwasi Abu, Andrew Owusu-Ansah, Shadrack Mensah, John Oduro-Boateng, Carl Halladay Abraham

J Ophthalmol· February 2020

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Comparative evaluation of a novel solar powered low-cost ophthalmoscope (Arclight) by eye healthcare workers in Malawi.
Rebecca Blundell, David Roberts, Evridiki Fioratou, Carl Abraham, Joseph Msosa

BMJ Innov· April 2018

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Self-refraction accuracy with adjustable spectacles among children in Ghana.
Alex Azuka Ilechie, Samuel Abokyi, Andrew Owusu-Ansah, Samuel Bert Boadi-Kusi, Andrew Kofi Denkyira, Carl Halladay Abraham

Optom Vis Sci· April 2015

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Awareness, knowledge and self-care practices toward glaucoma among final year health science university students in Ghana.
Samuel B Boadi-Kusi, Samuel Kyei, Khathutshelo P Mashige, Rekha Hansraj, Carl Halladay Abraham

Clin Exp Optom· March 2015

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