The slope of the psychometric function for Bailey-Lovie letter charts: Defocus effects and impilications for modeling letter-by-letter scores

Optometry and Vision Science

Volumn 78, Issue 2, 2001, Pages 113-121

  Carkeet, Andrew ^a   Lee, Linda ^c   Kerr, Jennifer R ^c   Keung, Maile M ^b  

^a SINGAPORE EYE RESEARCH INSTITUTE   (Singapore)

^b Paterson Burn Optometrists   (New Zealand)

^c NONE

Author keywords

Logarithm of the minimum angle of resolution; Probit analysis; Psychometric function slope; Termination rules; Visual acuity

Indexed keywords

ADULT; ANALYTIC METHOD; ARTICLE; DATA ANALYSIS; DISEASE COURSE; FEMALE; HUMAN; HUMAN CELL; HUMAN EXPERIMENT; HUMAN TISSUE; MALE; MATHEMATICAL ANALYSIS; NORMAL HUMAN; PRIORITY JOURNAL; PSYCHOMETRY; SCORING SYSTEM; SYSTEM ANALYSIS; VISUAL ACUITY;

EID: 0035104743     PISSN: 10405488     EISSN: None     Source Type: Journal    
DOI: 10.1097/00006324-200102000-00012     Document Type: Article

References (22)

1. Vision thresholds from psychometric analyses: Alternatives to probit analysis
2. Probability summation over time
3. The effects of errors of refraction on visual acuity
4. Variations in the slope of the psychometric acuity function with acuity threshold and scale
5. Visual acuity scored by the letter-by-letter or probit methods has lower retest variability than the line assignment method
6. Repeatability of visual acuity measurement
7. Efficient estimation of thresholds with a small number of trials
8. A new method for exact measurements of visual acuity: Determination of threshold curves for the resolving power of the eye by computerized curve fitting
9. New design principles for visual acuity letter charts
10. The use of accurate visual acuity measurements in clinical anti-cataract formulation trials
11. Aliasing in human foveal vision
12. Optical quality of the human eye
13. Optical and retinal factors affecting visual resolution
14. Effects of spherical and astigmatic defocus on acuity and contrast sensitivity: A comparison of three clinical charts
15. Angular diameter of defocus blur discs
16. The effect of pupil size on visual acuity in uncorrected and corrected myopia
17. Repeated visual acuity measurement: Establishing the patient's own criterion for change
18. Designation of visual acuity in logarithmic units
19. Task complexity and visual acuity in senile macular degeneration
20. Clinical grading and the effects of scaling
21. Repeatability and intercorrelations of standard vision tests as a function of age