Survey on prevalence of cataract in selected communities in Limpopo Province of South Africa

Khoza, L.B.; Nunu, Wilfred Njabulo; Tshivhase, Shonisani E.; Murwira, Tinotenda Success; Mambanga, Pfungwa; Ramakuela, N.J.; Manganye, Bumani Solomon; Ndou, Nthomeni Dorah

doi:10.1016/j.sciaf.2020.e00352

Cited by 11 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For instance, participants aged ≥60 years were 8.2 times more likely to have visually significant cataract. This finding is supported by studies done in Debre Markos Hospital, Ethiopia, 8 Kenya, 34 South Africa, 29 Sri Lanka, 31 Indigenous Australia, 32 and Russia. 28 With older age, oxidative damage to the lens protein could increase owing to prolonged sunlight exposure and a reduced level of antioxidant nutrients.…”

Section: Discussionsupporting

confidence: 67%

“…The prevalence of visually significant cataract in this study was 29.1% (95% CI: 26.1–32.0), which was lower than that reported in South Africa (44%). 29 This might be attributable to characteristics of the study population and study setting. The study in South Africa was conducted in a remote rural community with limited access to cataract surgical services.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Visually significant cataract and associated factors among older people attending a community ophthalmic service in central Gondar Zone, Northwest Ethiopia: a cross-sectional study

et al. 2022

View full text Add to dashboard Cite

Objective In this study, we aimed to determine the prevalence of visually significant cataract and associated factors among older people attending community ophthalmic services in the central Gondar Zone, Northwest Ethiopia. Methods We conducted a community outreach-based cross-sectional study among adults aged ≥40 years in the central Gondar Zone from 30 May to 15 June 2021. We used systematic random sampling to select study participants. Interviewer-administered questionnaires and ocular examinations were performed and the data recorded. We applied binary logistic regression to identify factors associated with visually significant cataract. Results A total of 821 participants were included, with median age 57 years. The prevalence of visually significant cataract was 29.1% (95% CI: 26.1–32.0). Age ≥80 years (adjusted odds ratio [AOR] = 16.9; 95% CI: 7.5–38.4), rural residence (AOR = 1.7; 95% CI: 1.02–2.7), unmarried status (AOR = 1.9; 95% CI: 1.2–3.2), illiteracy (AOR = 2.9; 95% CI: 1.4–6.1), unemployed status (AOR = 1.7; 95% CI: 1.1–2.7), and sunlight exposure ≥5 hours per day (AOR = 1.6; 95% CI: 1.04–2.4) were significantly associated with visually significant cataract. Conclusion In this study, visually significant cataract was found to be high, which requires immediate public health intervention.

show abstract

Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Visually significant cataract and associated factors among older people attending a community ophthalmic service in central Gondar Zone, Northwest Ethiopia: a cross-sectional study

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Early studies in South Africa showed an annual incidence of cataract blindness of 0.14% with a prevalence of 0.6% in a rural population in KwaZulu-Natal, ( 30 ) and cataracts were the cause of loss of vision in 60% of blind Black Africans in rural Northern Transvaal ( 31 ). In the only recent study on cataract based in South Africa, Khoza et al estimated that the prevalence of cataract was 67.4% in those aged over 18 years living in rural villages in Vhembe district, Northern Limpopo ( 32 ). It is known that cataract formation begins earlier in African populations than in comparable populations in India and USA, ( 33 ) and that it is more common in rural than urban areas ( 34 , 35 ).…”

Section: Chronic Effects Of Solar Uvr On the Eyementioning

confidence: 99%

Health Risks Associated With Excessive Exposure to Solar Ultraviolet Radiation Among Outdoor Workers in South Africa: An Overview

Wright

Norval

2021

Front. Public Health

View full text Add to dashboard Cite

Exposure of outdoor workers to high levels of solar ultraviolet radiation (UVR) poses significant, well-known health risks including skin cancer and eye diseases. In South Africa, little is known about how many workers are potentially overexposed to solar UVR and what the associated impacts on their health might be. In this overview, the geography and solar UVR environment in South Africa are considered, as well as the different outdoor occupational groups likely to be affected by excessive solar UVR exposure. Sunburn, pterygium, cataract, keratinocyte cancers, and melanoma are discussed in the context of outdoor workers. Few studies in South Africa have considered these health issues and the most effective ways to reduce solar UVR exposure for those working outside. Several countries have developed policies and guidelines to support sun safety in the workplace which include training and education, in addition to the provision of personal protective equipment and managerial support. Several gaps in occupational sun protection and workplace sun safety for South Africa are identified. Legislation needs to recognize solar UVR exposure as an occupational health hazard, with sun safety guidelines and training provided for employers and employees.

show abstract

“…The study shows poor use of sunglasses that provide direct ocular protection when working, among this sample of South African outdoor farmworkers, especially among females. This is of concern as the prevalence of cataracts in this geographic area is estimated to be ~ 44% (12). The use of sunglasses in this study was much lower than what was found among German and New Zealand farmers (6,13).…”

Section: Discussionmentioning

confidence: 99%

Low Use of Ocular Sun Protection among Agricultural Workers in South Africa: Need for Further Research

Linde

Wright

Kapwata

et al. 2021

Photochem & Photobiology

View full text Add to dashboard Cite

Although ocular diseases related to solar ultraviolet radiation exposure have a high prevalence in Africa, little is known about the occupational use of ocular photoprotective measures on the continent. In a survey of South Africa farmworkers on a farm in the Limpopo Province, we analyzed factors related to ocular sun protection including use of different types of hats and sunglasses in relation to age, gender and duration of agricultural employment. Majority of participants (80%) never wore sunglasses while 23% never wore a hat when working. More male workers used measures to protect their eyes than female workers. The type of hat most worn was a cap although broad‐brimmed hats provide more effective photoprotection. The need for awareness campaigns that focus on the importance of using photoprotective measures in both an agricultural and South Africa contexts was identified.

show abstract

Survey on prevalence of cataract in selected communities in Limpopo Province of South Africa

Cited by 11 publications

References 25 publications

Visually significant cataract and associated factors among older people attending a community ophthalmic service in central Gondar Zone, Northwest Ethiopia: a cross-sectional study

Visually significant cataract and associated factors among older people attending a community ophthalmic service in central Gondar Zone, Northwest Ethiopia: a cross-sectional study

Health Risks Associated With Excessive Exposure to Solar Ultraviolet Radiation Among Outdoor Workers in South Africa: An Overview

Low Use of Ocular Sun Protection among Agricultural Workers in South Africa: Need for Further Research

Contact Info

Product

Resources

About