Geographical prevalence and risk factors for pterygium: a systematic review and meta-analysis

Liu, Lei; Wu, Jingyang; Geng, Jin; Yuan, Zhe; Huang, Desheng

doi:10.1136/bmjopen-2013-003787

Cited by 174 publications

(166 citation statements)

References 30 publications

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“…This is probably due to males forming majority (68.00%) of the study sample. Several studies have reported gender to be an independent predictor of pterygium, with males more likely to develop pterygium than females [15,17,20,24,29,[34][35][36][37]. The Tanjong Pagar survey reported males to be five times more likely to develop pterygium than females [38].…”

Section: Resultsmentioning

confidence: 99%

“…Ultraviolet (UV) light exposure is believed to be the single most important risk factor for development of pterygium [26]. Individuals with increased UV light exposure such as outdoor workers (farmers, welders, surfers, fishers, gardeners etc) have an increased risk of pterygium development compared to indoor workers [15].…”

Section: Introductionmentioning

confidence: 99%

“…Several risk factors have been identified for development of pterygium. These include ultraviolet (UV) light exposure, exposure to irritants such as dust, smoke and wind, dry ocular surface and inflammation [15][16][17][18][19][20][21][22][23][24][25]. Ultraviolet (UV) light exposure is believed to be the single most important risk factor for development of pterygium [26].…”

Section: Introductionmentioning

confidence: 99%

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Pterygium among Staff of College of Science, KNUST, Kumasi

Ahmed

et al. 2017

AOVS

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The aim of the study was to determine the prevalence of pterygium among the staff of College of Science, Kwame Nkrumah University of Science and Technology and an association between computer use and pterygium development. A descriptive cross-sectional study in which 150 staff of the College of Science, KNUST, Kumasi, aged 25 to 60 years who volunteered were examined for pterygium. A closeended questionnaire was used to interview the participants. Majority (68.00%) of the participants were males. The ages of the participants ranged from 25 years to 60 years, with a mean age of 38.85 years. Majority (79.33%) of the participants were generally indoor workers while 31(20.67%) were outdoor workers. One hundred and sixteen (77.33%) of the participants were computer users (either at work, home or both) and 34 (22.67%) of the participants were not. The general prevalence of pterygium was 41.33%. The proportion of pterygium was highest among males (43.14%), highest in the age group 41 -50 years (51.22%) and was higher among outdoor workers (51.61%) than indoor workers (40.33%). The proportion of pterygium among computer using participants was 40.52%. A significant association (95 CI, p = 0.02) was observed between the number of hours of computer use per day and pterygium development, with the highest number of cases recorded among those who spent more than 2 hours on the computer daily. Pterygium is more prevalent among outdoor workers than indoor workers. For indoor workers, individuals who spend time on the computer may be predisposed to the development of pterygium, with persons who spend an average of more than two hours per day on the computer both at home and at work , most susceptible. Keywords:

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pterygium among Staff of College of Science, KNUST, Kumasi

Ahmed

et al. 2017

AOVS

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“…Prevalence of this connective tissue growth over cornea in this population (26.2%) was much higher than the worldwide rate (10.2%). [39] Very few published studies reported greater prevalence of pterygium: 33.01% in Doumen County, China [40]; 30.8% in Kumejima Island, Japan [41]; and 36.6% in Arawak and Tukano indian communities from Amazon forest [42]. Rural environment, low geographical latitude of Conceição das Crioulas and preponderance of black ethnicity among quilombolas may contribute to the high prevalence.…”

Section: Discussionmentioning

confidence: 99%

“…Rural environment, low geographical latitude of Conceição das Crioulas and preponderance of black ethnicity among quilombolas may contribute to the high prevalence. [39,43] Other probable contributing factors to numerous cases of pterygium, not evaluated in this study, are: outdoor work, few years of education, low use of protection to UV exposure (hat, sunglasses or prescription glasses). Three quilombolas were referred to pterygium surgery.…”

Section: Discussionmentioning

confidence: 99%

Ocular Findings in a Brazilian Rural Slave-Descendant Community: Eye Health in Quilombos

Oliveira¹,

Leitão²,

Carvalho³

et al. 2016

Int Arch Med

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Purpose: To report ophthalmological findings from one quilombo remnant population, a Brazilian marginalized rural and slave-descendant community.Methods: Descriptive study of eye health from one of the largest quilombo communities in Brazil, located in Conceição das Crioulas, Pernambuco. Ophthalmic exam including visual acuity, refractive examination, biomicroscopy, fundus examination, tonometry and pachymetry was performed in a convenience sample of 255 residents over 40 years-old, representing approximately one third of the population in this age range.Results: Half of the subjects had never been examined by an ophthalmologist in their lives. Blindness was identified in 6.7% of participants and low vision in 8.6%. Visual impairment was caused mainly by cataract and uncorrected refractive errors. Cataract was found in 27.3% of subjects. Ametropia was documented in 71% of participants and the most prevalent refraction error was hyperopia. Prevalence of glaucoma and age-related macular degeneration were respectively 5.4% and 1.9%. Pterygium was detected in 26.7% of participants. Correcting lenses were prescribed to 57.4% of individuals, 5.5% were referred for surgery, 2.7% to specialized clinics and 1.2% to additional tests. Conclusions:Blindness, cataract and pterygium were highly frequent in quilombo residents, and distribution of other ocular diseases were close to average published rates. Data collected may help planning preventive and promotive actions for eye health of socioeconomic disadvantaged quilombo populations.

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Diabetes Eye Screening in Urban Settings Serving Minority Populations

et al. 2015

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The use of a nonmydriatic camera for retinal imaging combined with the remote evaluation of images at a telemedicine reading center has been advanced as a strategy for diabetic retinopathy (DR) screening, particularly among patients with diabetes mellitus from ethnic/racial minority populations with low utilization of eye care.OBJECTIVE To examine the rate and types of DR identified through a telemedicine screening program using a nonmydriatic camera, as well as the rate of other ocular findings. DESIGN, SETTING, AND PARTICIPANTSA cross-sectional study (Innovative Network for Sight [INSIGHT]) was conducted at 4 urban clinic or pharmacy settings in the United States serving predominantly ethnic/racial minority and uninsured persons with diabetes. Participants included persons aged 18 years or older who had type 1 or 2 diabetes mellitus and presented to the community-based settings. MAIN OUTCOMES AND MEASURESThe percentage of DR detection, including type of DR, and the percentage of detection of other ocular findings.RESULTS A total of 1894 persons participated in the INSIGHT screening program across sites, with 21.7% having DR in at least 1 eye. The most common type of DR was background DR, which was present in 94.1% of all participants with DR. Almost half (44.2%) of the sample screened had ocular findings other than DR; 30.7% of the other ocular findings were cataract.CONCLUSIONS AND RELEVANCE In a DR telemedicine screening program in urban clinic or pharmacy settings in the United States serving predominantly ethnic/racial minority populations, DR was identified on screening in approximately 1 in 5 persons with diabetes. The vast majority of DR was background, indicating high public health potential for intervention in the earliest phases of DR when treatment can prevent vision loss. Other ocular conditions were detected at a high rate, a collateral benefit of DR screening programs that may be underappreciated.

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Geographical prevalence and risk factors for pterygium: a systematic review and meta-analysis

Cited by 174 publications

References 30 publications

Pterygium among Staff of College of Science, KNUST, Kumasi

Pterygium among Staff of College of Science, KNUST, Kumasi

Ocular Findings in a Brazilian Rural Slave-Descendant Community: Eye Health in Quilombos

Diabetes Eye Screening in Urban Settings Serving Minority Populations

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