March 2012
Volume 53, Issue 14
Free
ARVO Annual Meeting Abstract  |   March 2012
The Relationship between Macular Pigment Optical Density and Retinal Straylight
Author Affiliations & Notes
  • Raymond O. Beirne
    Vision Science Research Group, University of Ulster, Coleraine, United Kingdom
  • Footnotes
    Commercial Relationships  Raymond O. Beirne, None
  • Footnotes
    Support  UK College of Optometrists Research Fellowship
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 6407. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Raymond O. Beirne; The Relationship between Macular Pigment Optical Density and Retinal Straylight. Invest. Ophthalmol. Vis. Sci. 2012;53(14):6407.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Purpose: : It has been reported that individuals with higher levels of macular pigment optical density (MPOD) are less affected by disability glare, have a faster photostress recovery time and suffer less visual discomfort. Such findings add weight to the theory that the macular pigment may play a role in improving visual performance in glare. The aim of this study was to further examine this theory by examining the relationship between macular pigment optical density and estimates of retinal straylight using the Oculus Cataract Quantifier (C-Quant).

Methods: : 36 individuals (aged 19-40 yrs) with good visual acuity, free from ocular disease and with clear ocular media participated. MPOD was measured at 0.5 degrees eccentricity from the foveal centre using a heterochromatic flicker photometry based densitometer instrument from MacularMetrics. Retinal straylight was estimated using the Oculus C-Quant, a commercially available device which uses a psychophysical compensation comparison method.

Results: : Mean MPOD was 0.38 (±0.18) log units (range 0 to 0.77). Mean straylight parameter (S) was 1.05 (±0.13) log units (range 0.86 to 1.48). There was no statistically significant association between age and MPOD (r=0.03, p=0.86), age and retinal straylight (r=0.01, p=0.94) and MPOD and retinal straylight (r=0.04, p= 0.83). There was no statistically significant difference in retinal straylight levels between those individuals with MPOD levels above the average (>0.38 log units) at 0.5 degrees eccentricity and below the average (t=0.37, df=34, p=0.72).

Conclusions: : Retinal straylight, estimated by the Oculus C-Quant, was not significantly associated with macular pigment optical density. Further investigation on the role of macular pigment in improving visual performance in glare in the human eye is required.

Keywords: macular pigment • visual acuity • contrast sensitivity 
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×