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Heart aging when near vision difficulty begins

Şahbender Koç1, Sadettin Selçuk Baysal2

  • 1Keçiören Education and Training Hospital, Unıversity of Health Sciences, Ankara, Turkey.

The Aging Male : the Official Journal of the International Society for the Study of the Aging Male
|May 26, 2020
PubMed

Insights

Measuring near vision with a simple test can identify signs of cardiac aging. Reduced accommodation amplitude (AA) is linked to increased risk of diastolic dysfunction and other heart aging indicators.

Area of Science:

  • Ophthalmology
  • Cardiology
  • Gerontology

Background:

  • Cellular aging affects non-renewable tissues like the heart and lens more than renewable ones.
  • Declining accommodation amplitude (AA) is a hallmark of age-related near vision loss.
  • Cardiac aging is a significant, independent risk factor for cardiovascular diseases.

Purpose of the Study:

  • To investigate the association between cardiac aging and accommodation amplitude (AA).
  • To explore if AA measurement can serve as a screening tool for cardiac aging.

Main Methods:

  • 500 participants (mean age 50) were grouped by AA measured with a Raf ruler.
  • Lens nucleus changes during accommodation were imaged via biomicroscopy and measured using ImageJ.
  • Cardiac aging was assessed using electrocardiography, heart rate variability, and diastolic dysfunction evaluation.

Main Results:

  • Subjects with reduced near vision clarity (29-33 cm) showed a 2.6-fold higher risk of diastolic dysfunction.
  • These subjects also had a 2.1-fold higher risk of reduced lateral e' velocity and a 1.5-fold higher risk of an abnormal low/high frequency ratio.

Conclusions:

  • Subjective accommodation amplitude (AA) measurement is a simple screening method.
  • AA can predict key cardiac aging parameters, notably diastolic dysfunction.
Abstract

Keywords:
Agingaccommodation amplitudebiomicroscopyheart aginglens

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