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Related Experiment Videos

Keratoconus in the Medicare population.

Sherman W Reeves¹, Leon B Ellwein, Terry Kim

¹Minnesota Eye Consultants, Minneapolis, MN 55404, USA. swreeves@mneye.com

|December 19, 2008

Summary

Keratoconus is uncommon in Medicare beneficiaries aged 65+, with prevalence rising slightly from 1999-2003. Rates decreased with age but were higher in white individuals.

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Area of Science:

Ophthalmology
Public Health
Geriatrics

Background:

Keratoconus is a progressive eye condition affecting corneal shape.
Understanding its prevalence in older adults is crucial for healthcare planning.

Purpose of the Study:

To determine the population-based prevalence of keratoconus in US individuals aged 65 and older.
To analyze trends and demographic factors associated with keratoconus in this age group.

Main Methods:

Retrospective cross-sectional analysis of Medicare fee-for-service claims (1999-2003).
Inclusion of a 5% national sample of beneficiaries aged 65+.
Querying ICD-9 codes for keratoconus diagnosis.

Main Results:

Prevalence of keratoconus care increased from 15.7 to 18.5 per 100,000 beneficiaries (1999-2003).
Average prevalence was 17.5 per 100,000 beneficiaries.
Prevalence decreased with advancing age and was higher in white individuals; no significant gender difference was observed.

Conclusions:

Keratoconus is rare in the Medicare population.
Medicare claims data can monitor uncommon diseases in the elderly.
Further research may elucidate specific risk factors in older populations.