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Related Experiment Videos

Life expectancy in keratoconus.

L C Moodaley1, E G Woodward, C S Liu

  • 1Contact Lens and Prostheses Department, Moorfields Eye Hospital, London.

The British Journal of Ophthalmology
|October 1, 1992
PubMed
Summary
This summary is machine-generated.

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This study investigated if keratoconus patients have a shorter life expectancy. Research found no significant difference in mortality rates compared to the general population, suggesting other factors influence clinic attendance.

Area of Science:

  • Ophthalmology
  • Genetics
  • Epidemiology

Background:

  • Keratoconus is a progressive eye condition affecting corneal shape.
  • Anecdotal evidence suggests fewer older patients attend keratoconus clinics.
  • A potential link between keratoconus, connective tissue disorders, and reduced life expectancy was hypothesized.

Purpose of the Study:

  • To test the hypothesis that keratoconus patients have a shorter life expectancy.
  • To investigate potential underlying connective tissue-related diseases impacting longevity.
  • To explore reasons for the low attendance of elderly patients at specialized keratoconus clinics.

Main Methods:

  • A cohort of 337 keratoconus patients, aged 40+ in 1991, was identified from medical records.
  • Mortality rates of the keratoconus sample were compared to actuarial English life tables.

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  • Adjustments were made for social class in the comparative analysis.

    • Main Results:

    • No statistically significant difference was found in mortality rates between keratoconus patients and the general population.
    • This finding remained consistent even after adjusting for social class.
    • A substantial portion of the identified patient sample (45/337) was untraceable.

    Conclusions:

    • The hypothesis of a significantly shorter life expectancy for keratoconus patients due to underlying systemic disease is not supported by this study.
    • The low attendance of older individuals at keratoconus clinics may be attributed to factors other than reduced lifespan.
    • Further research is needed to understand the reasons for age-related attendance patterns in keratoconus care.