Adjusting to a Sudden "aging" of the lens

Katherine E M Tregillus, John S Werner, Michael A. Webster

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Color perception is known to remain largely stable across the lifespan despite the pronounced changes in sensitivity from factors such as the progressive brunescence of the lens. However, the mechanisms and timescales controlling these compensatory adjustments are still poorly understood. In a series of experiments, we tracked adaptation in observers after introducing a sudden change in lens density by having observers wear glasses with yellow filters that approximated the average spectral transmittance of a 70-year-old lens. Individuals were young adults and wore the glasses for 5 days for 8 h per day while engaged in their normal activities. Achromatic settings were measured on a CRT before and after each daily exposure with the lenses on and off, and were preceded by 5 min of dark adaptation to control for short-term chromatic adaptation. During each day, there was a large shift in the white settings consistent with a partial compensation for the added lens density. However, there was little to no evidence of an afterimage at the end of each daily session, and participants' perceptual nulls were roughly aligned with the nulls for short-term chromatic adaptation, suggesting a rapid renormalization when the lenses were removed. The long-term drift was also extinguished by brief exposure to a white adapting field. The results point to distinct timescales and potentially distinct mechanisms compensating for changes in the chromatic sensitivity of the observer.

Original languageEnglish (US)
Pages (from-to)A129-A136
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume33
Issue number3
DOIs
StatePublished - Mar 1 2016

Fingerprint

Lenses
Aging of materials
adjusting
lenses
Color
Glass
afterimages
dark adaptation
Wear of materials
Color Perception
Afterimage
color vision
Dark Adaptation
Social Adjustment
glass
Cathode ray tubes
sensitivity
Young Adult
transmittance
filters

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Medicine(all)
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

Cite this

Adjusting to a Sudden "aging" of the lens. / Tregillus, Katherine E M; Werner, John S; Webster, Michael A.

In: Journal of the Optical Society of America A: Optics and Image Science, and Vision, Vol. 33, No. 3, 01.03.2016, p. A129-A136.

Research output: Contribution to journalArticle

Tregillus, Katherine E M ; Werner, John S ; Webster, Michael A. / Adjusting to a Sudden "aging" of the lens. In: Journal of the Optical Society of America A: Optics and Image Science, and Vision. 2016 ; Vol. 33, No. 3. pp. A129-A136.
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