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. 2021 Jan-Feb;84(1):17-21.
doi: 10.5935/0004-2749.20210003.

Association between keratoconus, ocular allergy, and sleeping behavior

Rodrigo Teixeira Santos  1 , Bernardo Kaplan Moscovici  1 , Flávio Eduardo Hirai  1 , Cláudia Maria Francesconi Benício  1 , Eliane Mayumi Nakano  1 , Walton Nosé  1
Affiliations

Association between keratoconus, ocular allergy, and sleeping behavior

Rodrigo Teixeira Santos et al. Arq Bras Oftalmol. 2021 Jan-Feb.

Abstract
in English, Portuguese

Purpose: To compare the severity and laterality of keratoconus according to allergic rhinitis, scratching and sleeping habits, and manual dexterity.

Methods: Objective assessments regarding allergic rhinitis, eye itching, and slee-ping position among patients with keratoconus (diagnosed based on corneal tomography) were conducted. Diagnostic criteria and classification were based on the Amsler-Krumeich classification.

Results: Ocular pruritus was reported by 29 of 34 participants (85.29%). Eighteen participants (62.07%) reported equal scratching of both eyes, six (20.69%) more on the right eye, and five (17.24%) more on the left eye. Comparison of the main sleeping position and the eye with more severe presentation of the disease using Fisher's exact test revealed some correlations (0.567 and 0.568 in the right and left eye, respectively). However, these correlations were not statistically significant.

Conclusions: The association between higher keratometry values and sleeping position appears to be more significant than that reported between keratometry and itching, or manual dexterity.

Objetivo: Comparar a gravidade e a lateralidade do ceratocone de acordo com a rinite alérgica, os hábitos de coçar e dormir e a destreza manual.

Métodos: Foram realizadas questões objetivas sobre rinite alérgica, prurido ocular e posiç ão do sono em pacientes com ceratocone, diagnosticados com base na tomografia corneana. Esses exames foram analisados e classificados de acordo com a classificação de Amsler-Krumeich.

Resultados: O prurido ocular foi referido por 29 (85,29%) dos 34 voluntários. Dezoito sujeitos (62,07%) relataram coçar ambos os olhos igualmente, 6 (20,69%) mais no olho direito e 5 (17,24%) mais no olho esquerdo. Comparando-se a posição de dormir principal e o olhos com apresentação mais grave da doença, foi encontrada alguma relação baseada no teste exato de Fisher (0,567 no olho direito e 0,568 no olho esquerdo), embora nenhuma comparação parecesse estatisticamente significante.

Conclusões: A associação entre maiores valores de ceratometria e posição do sono parece ser mais importante do que entre ceratometria e prurido ou destreza manual.

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Conflict of interest statement

Disclosure of potential conflicts of interest: Walton Nosé is a consultant of ALCON - a Novartis Division. Rodrigo Teixeira Santos, Bernardo Kaplan Moscovici, Flávio Hirai, Cláudia Maria Francesconi Benício, and Eliane Mayumi Nakano have no conflicts of interest to declare.

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