Abstract
The scotopic threshold of 15 subjects was measured with a 1° circular white stimulus light placed at 15° below the fixation level during 45 min at rest followed by 20min constant pedalling on an ergometric bicycle with the head stationary. Loads were adjusted individually so that the effort extended by each subject required 60-75% of his maximum oxygen uptake. Similar results were obtained under both resting and effort conditions, indicating that the dark adaptation threshold remained unaffected by vigorous static effort.
Original language | English |
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Pages (from-to) | 322-324 |
Number of pages | 3 |
Journal | Ophthalmic Research |
Volume | 16 |
Issue number | 6 |
DOIs | |
State | Published - 1984 |
Keywords
- Dark adaptation
- Night vision
- Physical effort
- Rod sensitivity
- Scotopic threshold