What question did this study set out to answer?

This research aims to evaluate the knowledge of keratoconus among the public in Brazil and identify gaps for future education.

May 31, 2026Revista Brasileira de Oftalmologia0 citationsOpen Access

Public knowledge about keratoconus: a cross-sectional online survey in Brazil

JFJoão Batista Ramos da Fonseca ACAlexandre Batista da Costa DADillan Cunha Amaral

Key Points

This research aims to evaluate the knowledge of keratoconus among the public in Brazil and identify gaps for future education.
Cross-sectional online survey distributed via social media and an ophthalmology bulletin.
Adults (≥18 years) participated anonymously after informed consent.
Questionnaire assessed demographics and keratoconus-related knowledge; data analyzed using chi-square and nonparametric tests.
A total of 879 participants completed the survey, revealing significant gaps in knowledge about keratoconus.
Descriptive statistics highlighted low awareness of keratoconus symptoms and treatment options among respondents.
Chi-square analysis indicated a correlation between demographic factors and level of knowledge about keratoconus.

Abstract

Objective: To evaluate public knowledge of keratoconus in Brazil and identify gaps to guide future educational strategies. Methods: A cross-sectional online survey, based on the 2015 Global Consensus on Keratoconus, was distributed via social media and an ophthalmology bulletin. Adults (≥18 years) participated anonymously after providing informed consent. The questionnaire assessed demographics, ocular history, and keratoconus-related knowledge. Descriptive statistics summarized the data, and associations were analyzed using chi-square and nonparametric tests (5% significance level). Results: A total of 879 ...

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