All Outputs (11)

Optical blur, fog, and glare significantly delay driver reaction time to driving hazards in younger and older drivers (2024)
Presentation / Conference Contribution

Purpose: The ability to detect and react to various forms of hazard on the road is crucial for safe driving. In some countries, the Hazard Perception Test (HPT) is employed as part of the assessment process for driving license acquisition, but there... Read More about Optical blur, fog, and glare significantly delay driver reaction time to driving hazards in younger and older drivers.

Impact of visual degradation on hazard perception performance in younger and older drivers (2024)
Presentation / Conference Contribution

Purpose: For safe driving, drivers must be able to detect and respond effectively to driving hazards. This study examined how visual degradation affects hazard detection while driving using the UK Hazard Perception Test (HPT).

Method: Fifty-nine d... Read More about Impact of visual degradation on hazard perception performance in younger and older drivers.

Ocular trauma among patients attending a tertiary teaching hospital in Zimbabwe (2023)
Journal Article

Purpose
To investigate the trends, prevalence and distribution of ocular trauma in a Zimbabwean Tertiary Teaching Hospital (Parirenyatwa).

Method
A hospital-based retrospective cross-sectional study was conducted at the Parirenyatwa Group of Hos... Read More about Ocular trauma among patients attending a tertiary teaching hospital in Zimbabwe.

Assessment of optical quality of ready‐made reading spectacles for presbyopic correction (2023)
Journal Article

Purpose
Many presbyopic patients in both developed and developing countries use ready-made reading spectacles for their near vision correction even though the quality of these spectacles cannot always be assured. This study assessed the optical qual... Read More about Assessment of optical quality of ready‐made reading spectacles for presbyopic correction.

Efficacy of intravitreal bevacizumab on diabetic macular oedema in an African population (2023)
Journal Article

Purpose
To evaluate the short-term effect of intravitreal bevacizumab (avastin) injection on visual outcomes of patients with diabetic macular oedema.

Methods
A retrospective cross-sectional study was conducted to evaluate 39 eyes of thirty-nine... Read More about Efficacy of intravitreal bevacizumab on diabetic macular oedema in an African population.

Mesopic conditions optimise the detection of visual function loss in drivers with simulated media opacity (2022)
Journal Article

Drivers have different visual demands across varying contrast and luminance conditions. However, vision assessments for driving are typically conducted under photopic conditions. This study investigated the sensitivity of photopic and mesopic conditi... Read More about Mesopic conditions optimise the detection of visual function loss in drivers with simulated media opacity.

Effect of varying levels of optical blur on performance of a hazard perception test for driving (2022)
Presentation / Conference Contribution

Purpose : Appropriate detection of, and reaction to, hazards are important components of safe driving, and for drivers with reduced vision, this skill can become compromised. However, the level of blur that significantly impairs hazard perception per... Read More about Effect of varying levels of optical blur on performance of a hazard perception test for driving.

Eligibility for the use of ready-made spectacles among children in a school-based programme in Ghana (2022)
Journal Article

Ready-made spectacles are low-cost spectacles for correcting refractive errors in children who would otherwise have their refractive errors uncorrected due to lack of availability and affordability of conventional, expensive custom-made spectacles. T... Read More about Eligibility for the use of ready-made spectacles among children in a school-based programme in Ghana.

The impact of mesopic conditions to detect functional visual loss in drivers with simulated media opacity (2021)
Presentation / Conference Contribution

Purpose: Although driving encompasses a wide range of rapidly modulating contrast and luminance levels, contrast sensitivity (CS), if assessed, is typically done under photopic conditions. This study evaluated existing measures of CS under photopic a... Read More about The impact of mesopic conditions to detect functional visual loss in drivers with simulated media opacity.

Prevalence and distribution of uncorrected refractive error among school children in the Bongo District of Ghana (2021)
Journal Article

To estimate the prevalence and distribution of uncorrected refractive error among school children in the Bongo District of Ghana. A descriptive cross-sectional study was conducted among 12–15-year-old children in eighteen public junior high schools i... Read More about Prevalence and distribution of uncorrected refractive error among school children in the Bongo District of Ghana.

Visual function among commercial vehicle drivers in the central region of Ghana (2015)
Journal Article

Aim
To determine the relationship between some visual functions: colour vision defects, abnormal stereopsis, visual acuity and the occurrence of road traffic accident (RTAs) among commercial vehicle drivers in the central region of Ghana, and to ass... Read More about Visual function among commercial vehicle drivers in the central region of Ghana.