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Association between keratoconus, ocular allergy, and sleeping behavior.

Rodrigo Teixeira Santos1, Bernardo Kaplan Moscovici1, Flávio Eduardo Hirai1

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Keratoconus severity may correlate with sleeping position more than itching or manual dexterity. This study investigated these factors in patients with keratoconus, finding a potential link to sleep habits.

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Area of Science:

  • Ophthalmology
  • Corneal Diseases
  • Allergology

Background:

  • Keratoconus is a progressive eye condition affecting corneal shape.
  • Allergic rhinitis and eye-scratching behaviors are common in keratoconus patients.
  • Understanding contributing factors is crucial for managing keratoconus progression.

Purpose of the Study:

  • To compare keratoconus severity and laterality based on allergic rhinitis, scratching habits, and sleeping position.
  • To investigate potential correlations between lifestyle factors and keratoconus presentation.
  • To assess the influence of manual dexterity on keratoconus progression.

Main Methods:

  • Objective assessments of allergic rhinitis, eye itching, and sleeping position in keratoconus patients.
  • Diagnosis and classification of keratoconus using corneal tomography and the Amsler-Krumeich classification.
  • Statistical analysis, including Fisher's exact test, to compare sleeping position with disease severity.

Main Results:

  • Ocular pruritus (itching) was reported by 85.29% of participants.
  • Scratching habits varied, with 62.07% reporting equal scratching of both eyes.
  • Correlations between sleeping position and more severe keratoconus were observed but not statistically significant.

Conclusions:

  • Sleeping position shows a potentially stronger association with higher keratometry values than itching or manual dexterity.
  • Further research is needed to confirm the link between sleeping habits and keratoconus progression.
  • Lifestyle factors like sleeping position may play a role in keratoconus management.