Khathutshelo Percy Mashige

Khathutshelo Percy Mashige
University of KwaZulu-Natal | ukzn · Department of Optometry

PhD, MOptom, CAS, BOptom, BSc
Dean and Head of School School of Health Sciences University of KwaZulu-Natal

About

113
Publications
55,738
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
849
Citations
Additional affiliations
January 1998 - January 2019
University of KwaZulu-Natal
Position
  • Professor (Associate)

Publications

Publications (113)
Preprint
Background Corneal ulcerations are risks to blindness, and their treatment presents huge challenges, in part due to increased resistance to anti-bacterial drugs, accessibility and costs issues, particularly in developing countries. In this study, we investigated the pharmacological effect of Ganoderma Lucidum (G. lucidum) , on chemical-induced and...
Preprint
Diabetes mellitus (DM) is associated with severe COVID-19 infection and complications. This study assessed COVID-19 vaccine acceptance and hesitancy in diabetes and explored reasons for nonvaccinating. This was a web-based cross-sectional survey using a mixed-method approach conducted between March-May 2021 corresponding to most SSA countries' earl...
Preprint
Diabetes mellitus (DM) is associated with severe COVID-19 infection and complications. This study assessed COVID-19 vaccine acceptance and hesitancy in diabetes and explored reasons for nonvaccinating. A web-based cross-sectional survey using a mixed method approach was distributed to participants aged ≥18 years with self-reported DM in 11 Sub-Saha...
Preprint
Background: The COVID-19 vaccines are being rolled out across all the Sub-Saharan Africa (SSA) countries, with countries setting targets for achieving full vaccination rates. The aim of this study was to compare the uptake of, resistance and hesitancy to the COVID-19 vaccine between SSA locally residents and in the diaspora. Methods: This was a cro...
Article
Purpose There remains a lack of information on the perception and adoption of myopia control strategies among African eye care practitioners (ECPs). This study provides an African perspective to similar previous studies conducted in other parts of the world. Methods A self-administered survey in English and French was distributed to ECPs across Af...
Preprint
Full-text available
The COVID-19 vaccines are being rolled out across all the Sub-Saharan Africa (SSA) countries, with countries setting targets for achieving full vaccination rates. The aim of this study was to compare the uptake of, resistance and hesitancy to the COVID-19 vaccine between SSA locally residents and in the diaspora. This was a cross-sectional study co...
Article
Full-text available
Background: Repeatability and validity are important components of precision in any measurement system. Aim: This study aimed to determine the effect of change in head and neck position and body posture on the repeatability of intraocular pressure (IOP) measurements with PT-100 non-contact tonometer and compare with Goldmann, PT-100 and Schiøtz to...
Preprint
Full-text available
Background Vaccination remains the most powerful weapon against the emergence of new variants of coronavirus (COVID-19). However, false information about COVID-19 vaccines through various platforms including social media remain a major threat to global public health. The study examined the impact of information sources on COVID-19 vaccine hesitancy...
Preprint
Full-text available
Purpose C ontact lenses (CL) remain a popular mode of refractive error correction globally and in the Caribbean, mostly among young people. However, no data on the characteristics of the CL population wearers in the Caribbean is available. This study reported on the characteristics of CL wearers and the associated factors in Trinidad and Tobago (T&...
Article
Full-text available
Objectives To systematically review all current studies on diabetes risk assessment tools used in SSA to diagnose diabetes in symptomatic and asymptomatic patients. Methods Tools were identified through a systematic search of PubMed, Ovid, Google Scholar, and the Cochrane Library for articles published from January 2010 to January 2020. The search...
Article
Full-text available
Background: Obesity is one of the major public health problems globally, especially among women. Obesity is associated with glaucoma, cataract, age-related macular degeneration and diabetic retinopathy. Although it is clear that the anatomy and physiologic functions of the choroid may be affected by obesity, data investigating the effect of obesit...
Article
Full-text available
Background: The unprecedented outbreak of coronavirus disease (COVID-19) drastically spread worldwide, resulting in extraordinary measures put in place in various countries including Sub Saharan Africa (SSA) countries. Objective: To assess the factors associated with compliance with the public health measures imposed by various SSA countries. M...
Article
Full-text available
In South Africa, primary eye care is largely challenged in its organisational structure, availability of human and other resources, and clinical competency. These do meet the standard required by the National Department of Health. This study seeks to assess the levels of knowledge, attitudes, and practices on eye health amongst Human Resources for...
Article
Full-text available
Purpose: The key preventive measures adopted to minimise the spread of the coronavirus disease (COVID-19) had significant health, economic and physical impacts mostly in developing countries. This study evaluated the health, economic and physical impacts of COVID-19 lockdown measures among sub-Saharan African (SSA) population and associated demogr...
Article
Full-text available
This study investigated risk perception of contracting and dying of SARS-CoV-2 in sub-Sahara Africa during and after the lockdown periods. Two online surveys were conducted one year apart, with participants 18 years and above living in sub-Sahara Africa or the diaspora. Each survey took four weeks. The first survey was taken from 18 April to 16 May...
Article
Full-text available
Background: Perceived risk towards the coronavirus pandemic is key to improved compliance with public health measures to reduce the infection rates. This study investigated how Sub-Saharan Africans (SSA) living in their respective countries and those in the diaspora perceive their risk of getting infected by the COVID-19 virus as well as the assoc...
Article
Full-text available
Background: Vision-related problems have a negative impact on the learning abilities and school performance of a child. Adequate knowledge and practices of teachers enable the early identification and intervention of school children with visual deficits. Aim: This study aimed to investigate the knowledge and practices of teachers about child eye h...
Article
Full-text available
Due to the current COVID-19 pandemic and associated high mortality in sub-Saharan Africa, there is panic amongst healthcare workers because of the higher risk of being infected. This study compared knowledge, attitudes, and perceptions of COVID-19 among healthcare workers (HCWs) and non-healthcare workers (non-HCWs) and examined common associated f...
Article
Full-text available
As the search for effective treatment of coronavirus disease 2019 (COVID-19) infection continues, the public opinion around the potential use of chloroquine (CQ) in treating COVID-19 remains mixed. While the Western world panic-shopped for groceries and consumables, Africans stored some important medications like Chloroquine which were promoted t...
Article
Full-text available
Background: The development of human resources for eye health (HReH), aimed at achieving a 25% reduction in visual impairment by the year 2020, was one of the VISION 2020 objectives. Aim: To assess HReH in the public sector of KwaZulu-Natal (KZN), and its effect on the accessibility of eye care in the province. Setting: All public eye facilities...
Article
Full-text available
Background: Provision and uptake of low vision services are essential. Objective: To assess the availability of low vision services and barriers to their provision and uptake in the Ashanti and Brong Ahafo regions of Ghana from the perspective of eye care practitioners. Methods: A descriptive, quantitative, cross-sectional study design using s...
Article
Full-text available
This study investigated the infection prevention and control measures adopted by eye care practitioners in Ghana and South Africa during the lockdown phase of the COVID-19 pandemic. A descriptive, cross-sectional study was used to investigate infection prevention and control measures by eye care practitioners in Ghana (n=189) and South Africa (n=92...
Article
Full-text available
Background: Elevated intraocular pressure (IOP) remained the most important known risk factor for glaucoma. Aim: To compare the postural and diurnal IOP variations using the iCare rebound tonometer (RT) and Perkins applanation tonometer (PAT). Setting: Kakamega County Hospital, Kenya. Methods: Elevated intraocular pressure measurements were take...
Article
Full-text available
Background: Low vision and blindness have significant implications, resulting in a generally reduced quality of life amongst the sufferers. Aim: To determine the prevalence and causes of low vision and blindness amongst learners at the Akropong School for the Blind. Setting: The study was conducted in Akropong School for the Blind, Ghana. Methods:...
Preprint
Full-text available
Background Perceived risk towards the coronavirus pandemic is a key to improved compliance with public health measures to reduce the infection. This study investigated how Sub-Saharan Africans (SSA) living in their respective countries and those in the diaspora perceive their risk of COVID-19 outbreak and the factors associated. Methods A web-bas...
Article
Full-text available
Misinformation about coronavirus disease 2019 (COVID-19) is a significant threat to global public health because it can inadvertently exacerbate public health challenges by promoting spread of the disease. This study used a convenience sampling technique to examine factors associated with misinformation about COVID-19 in sub-Saharan Africa using an...
Article
Full-text available
Aim To determine the patterns of distribution of refractive errors in a clinical sample of patients examined in an optometry practice. Method In this retrospective study, the clinic records of 6687 patients aged 6 to 85 years comprising 2168 (32.2%) males and 4519 (67.5%) females were reviewed. Refractive error were analysed according to gender, a...
Article
Full-text available
Mental health and emotional responses to the effects of COVID-19 lockdown in sub-Saharan Africa (SSA) are of serious public health concern and may negatively affect the mental health status of people. Hence, this study assessed the prevalence of mental health symptoms as well as emotional reactions among sub-Saharan Africans (SSAs) and associated f...
Preprint
Full-text available
Mental health and emotional responses to the effects of COVID-19 lockdown in sub-Saharan Africa (SSA) are of serious public health concern and may negatively affect the mental health status of people. Hence, this study assessed the prevalence of mental health symptoms as well as emotional reactions among sub-Saharan Africans (SSAs) and associated f...
Article
Full-text available
BACKGROUND: The outbreak of coronavirus disease (COVID-19) has created a global public health crisis and non-compliance with public health measures to contain the infection poses a challenge to Sub-Saharan African governments. This study investigated the associations between compliance and public opinion on COVID-19 public health containment measur...
Article
Background: The outbreak of coronavirus disease (COVID-19) has created a global public health crisis and non-compliance with public health measures to contain the infection poses a challenge to Sub-Saharan African governments. This study investigated the associations between compliance and public opinion on COVID-19 public health containment measur...
Article
Full-text available
Background Globally, the conspiracy theory claiming 5G technology can spread the coronavirus disease (COVID-19) is making the rounds on social media and this could have a significant effect in tackling the spread of the pandemic. This study investigated the impact of the myth that 5G technology is linked to COVID-19 pandemic among sub-Saharan Afric...
Article
Full-text available
Background: Uncorrected refractive errors (REs) are becoming very common in children in developing countries, yet the use of spectacles and compliance to wear are not well documented in African children. Aim: To determine spectacle utilisation rate and reasons for non-compliance with spectacle wear amongst primary school children. Setting: Primar...
Article
Full-text available
Purpose: To investigate the effects of spectacle and telescope corrections on visual acuity (VA), contrast sensitivity (CS) and reading rates (RR) in students with oculocutaneous albinism (OCA). Methods: An observational study design was conducted on 81 students with OCA. Distance and near VA, CS and RR were measured without correction, with spe...
Article
Full-text available
Background To assess the psychometric properties of the QIRC questionnaire and use it as an outcome measure in spectacle wearers attending an eye clinic in Malawi. Methods Participants who had uncorrected distance visual acuity of below 6/18 and improved to 6/9 or better with spectacles on both eyes were included in the study. The participants self...
Article
Full-text available
Background: Visual impairment (VI) increases with age and has been reported to be more prevalent among older adults living in old age homes than in the general population. Aim: To determine the prevalence and causes of VI among older adults living in low-income old age homes in Durban, South Africa. Setting: This study was conducted at low-income o...
Article
Full-text available
Background: The university-based low vision clinic is one of the few low vision clinics in South Africa. Aim: To describe demographic and clinical profiles of patients who attended this clinic from 2010 to 2017. Setting: The university low vision clinic, South Africa. Methods: The record cards of all patients seen at the low vision clinic over 8...
Article
Full-text available
Background: Ghana has been reported to have the second highest prevalence of glaucoma worldwide. Aim: Because of glaucoma causing numerous cases of irreversible blindness, there is the need for baseline data for glaucoma characteristics among Ghanaians. This study was conducted to determine the demographic and clinical characteristics of glaucoma...
Article
Background: Community knowledge, beliefs and attitudes about albinism influences how they treat people living with the condition. Objectives: To explore the knowledge, beliefs and attitudes about albinism in a Black South African community of Ulundi, KwaZulu-Natal Province, South Africa.Methods: This cross-sectional quantitative study used a questi...
Article
Full-text available
Background: Knowledge of the utilisation of eye and skin care, and social services among persons with albinism is essential for planning intervention strategies for this group. Aim: The aim of this study was to determine the utilisation of eye and skin care, and social services among persons with albinism in the Ulundi Municipality of KwaZulu-Nata...
Article
Full-text available
Background: Congenital colour vision defects are x-linked inherited, non-progressive and untreatable disorders that describe poor colour discrimination. Objective: To determine the prevalence of congenital colour vision deficiency among students in Lagos, Nigeria. Methods: A school-based cross-sectional, cluster sample study was conducted to t...
Article
Full-text available
Background: People with congenital color vision deficiency can experience some difficulties with seeing colors in everyday life, and these problems vary according to the nature and severity of the defect, the individual’s circumstances and their ability to develop coping or adaptive strategies. Purpose: To determine the impact of congenital color v...
Article
Full-text available
Background: International and African rights instruments stipulate that children have the right to access quality general and eye health care. Lack of access to quality eye care can have a significant negative impact on the child, family and society in general. Aim: To determine the knowledge and practices of eye care professionals about the avail...
Article
Full-text available
Objectives: Congenital colour vision deficiency (CCVD) is an x-linked chromosome disorder that results from abnormalities in one or all three-cone type's photoreceptors. Early assessment and diagnosis of CCVD is necessary to minimise the disability associated with the condition. Multistage sampling was used to determine the prevalence of CCVD amon...
Article
Full-text available
Background: Oculocutaneous albinism results in defects of the visual pathway and ocular structures. Aim: To determine the ocular findings and vision status of learners with oculocutaneous albinism (OCA) as well as to establish the level of visual acuity, contrast sensitivity and reading rate improvements following optical correction. Setting: Thr...
Article
Full-text available
Compared to other African countries, Swaziland performs the worst in terms of providing eye health care services. A priority goal of the World Health Organization (WHO) is to alleviate childhood blindness, particularly in low-income countries such as Swaziland, where many people live in poverty, which is a contributor to poor health outcomes. A mix...
Article
Full-text available
Background: Swaziland, like many other developing countries, lacks appropriate eye health services, particularly for children.Aim: To determine the knowledge and practices of parents about child eye health care in the public sector in Swaziland.Setting: The setting for this study was Swaziland.Methods: A descriptive study involving cross-sectional...
Article
Full-text available
Background: Vision problems have been shown to adversely affect a child’s achievement in school. Aim: To determine the prevalence of refractive error and visual impairment in primary school children in Onitsha, Anambra State, Nigeria. Setting: The study was conducted in a primary school in Onitsha, Anambra State, Nigeria. Methods: A stratified r...
Article
Full-text available
AIM: To systematically review relevant literature investigating the classification and nomenclature, epidemiology and pathophysiological mechanisms, as well as diagnosis and treatment of ocular allergy. METHOD: The Medline, PubMed, Elsevier Science Direct, and Google Scholar databases were used to search for evidence-based literature on ocular alle...
Article
Full-text available
Purpose: To determine the intra-session and inter-session reproducibility of corneal, macular and retinal nerve fiber layer thickness (RNFL) measurements with the iVue-100 optical coherence tomography in normal eyes. Methods: These parameters were measured in the right eyes of 50 healthy participants with normal vision. Six scans each for cornea...
Article
Full-text available
Aim: To systematically review relevant literature investigating the classification and nomenclature, epidemiology and pathophysiological mechanisms, as well as diagnosis and treatment of ocular allergy.Method: The Medline, PubMed, Elsevier Science Direct, and Google Scholar databases were used to search for evidence-based literature on ocular aller...
Article
Full-text available
AIM: To establish profiles of corneal diameter (CD), curvature (ACC), corneal central thickness (CCT) and investigate their correlations with refractive errors' spherical equivalent (SE), axial length (AL), anterior chamber depth (ACD) and crystalline lens thickness (LT) in black South Africans with healthy eyes. We also investigated the intercorre...
Article
Full-text available
Purpose: To measure the retinal nerve fibre layer (RNFL) thickness values and investigate their associations with other parameters in healthy eyes of Black South Africans. Methods: 600 participants with healthy eyes, of whom 305 (50.83%) were males and 295 (49.17%) were females, with a mean age of 28.15 ± 13.09 years, underwent a detailed ophtha...
Article
Full-text available
Purpose: To determine normal macular thicknesses and their associations with demographic and ocular variables in healthy eyes of black South Africans.Methods: Six hundred healthy subjects (N = 600) underwent height and weight measurements followed by a complete ophthalmic examination, which included auto-refraction, subjective refraction, slit-lamp...
Article
Full-text available
Purpose: To determine means and ranges for axial length, anterior chamber depth, lens thickness values and their intercorrelations in an African population.Methods: Six hundred participants (N = 600) were selected through stratified random cluster sampling from geographically contiguous areas of Durban, South Africa. All participants underwent heig...
Article
Full-text available
Purpose: To determine the prevalence and causes of visual impairment and blindness among cocoa farmers in Ghana in order to formulate early intervention strategies. Methods: A cross-sectional study using multistage random sampling from four cocoa growing districts in Ghana was conducted from November 2013 to April 2014. A total of 512 cocoa farm...
Article
Background: The work environment of cocoa farmers exposes them to several ocular hazards that predispose them to eye diseases and injuries. However, the extent of ocular injuries and health seeking patterns following these injuries are unknown among cocoa farmers in Ghana. Objectives: To determine the prevalence of ocular injuries and health see...
Article
Full-text available
Background: Population-based studies involving refractive error in South Africa are few because they are expensive to conduct and require a high level of expertise. Rapid assessment of refractive error (RARE) is a relatively less resource-intensive method designed to assess the magnitude of uncorrected refractive error (URE), spectacle coverage an...
Article
Full-text available
The retina is the innermost neural layer of the eye, and is the site of transformation of light energy into a neural signal. Knowledge and assessment of the human retinal structural parameters are important for the appropriate diagnosis and management of various ocular diseases. For instance, potentially blinding eye diseases, such as glaucoma and...
Article
Full-text available
Purpose: To evaluate the repeatability and reproducibility of horizontal corneal diameter (HCD) and anterior corneal power (ACP) measurements obtained with the Oculus Keratograph 4 (OCULUS Optikgeräte GmbH).Methods: These parameters (HCD and ACP) were prospectively measured in quick succession three times in each of the right eyes of 40 healthy sub...