Atopic triad (allergic rhinitis, eczema, and asthma) and eye rubbing as risk factors for keratoconus: a systematic review and meta-analysis

Albalawi, Abdulmajeed; Alharbi, Alanoud; Alhasani, Hussain; Alharbi, Amal; Abdullah, Raghad; Alamrani, Abrar; Althobaiti, Amal; Albalwi, Ziad; Alblowi, Yassmeen; Albalawi, Nuwayr; Albalawi, Nujud; Alhwaiti, Atheer; Algethami, Turki Fehaid; Abusabir, Dina; Kalbouneh, Abeer

doi:10.18203/2394-6040.ijcmph20211393

Cited by 1 publication

(1 citation statement)

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“…Our research findings show an odd ratio (OR) of 3.6 with a p- value less than 0.001 for eye rubbing ( Table 2 ). Several studies reported a strong association between eye rubbing and KC [ 12 , 13 ], whilst other authors reported no association between eye rubbing and KC [ 14 , 15 ]. The differences among these studies could be related to how UCHER or abnormal eye rubbing was classified.…”

Section: Discussionmentioning

confidence: 99%

Risk Profile of Keratoconus among Secondary School Students in the West Region of Cameroon

Ayukotang

Moodley

Mashige

2022

Vision

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This study determined the risk factors of keratoconus (KC) among secondary school students in the West Region of Cameroon. A stratified, random sampling technique was used to select the 3015 secondary school students, 8 years and older, within the West Region of Cameroon. Selected school students completed the validated Keratoconus Risk Investigative Survey (KRIS) and a structured demographic questionnaire to determine the risk profile of KC. Descriptive analysis, logistic regression and p-values were used to provide an overview of the demographic findings and the risk factors of KC. Estimates were made as the proportion of affected school students and presented with a 95% confidence interval (CI). Multivariate logistic regression analysis was performed to explore the association between KC and the independent predictors that were found significant in the univariate analysis. The ages of the majority (93.2%) of students ranged from eight years to 18 years (mean = 13.18 ± years) and were mostly female (59.7%). Gender (OR 2.024, p < 0.001), eye rubbing (OR 3.615, p < 0.001), exposure to sunlight (OR 2.735, p < 0.001), blood relations with KC (OR 41.819, p < 0.001) and allergic experience (OR 1.070, p < 0.001) were considered. Eye rubbing was the most significant risk factor of keratoconus followed by refractive error, allergic experiences and sunlight exposure. These findings support the evidence that the etiology of KC is multifactorial, with eye rubbing being the most significant factor in this cohort. There is a need to address eye rubbing among students to minimize the risk of KC. Furthermore, 34.46% of students in Cameroon were at risk of developing KC. Hence the risk profile is that one engages in eye rubbing, has a family member with KC, spends more than eight hours per week in the sun and is prone to allergies. It will therefore be prudent for these risk factors for keratoconus to be included in the school health education programs.

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