Related Experiment Video
Updated: May 30, 2026

Measuring the Behavioral Effects of Intraocular Scatter
Published on: February 18, 2021
[Vision measurement in candelas: description of a psychophysical technique to quantify luminous intensity]
Airton Leite Kronbauer1, Paulo Schor, Wallace Chamon
1Departamento de Oftalmologia, Universidade Federal do Estado de São Paulo, SP, Brasil. oftalmologia@msn.com
Purpose:
To develop a method and a device for vision measurement in candela (cd). Vision measurement studies are important to all visual sciences.
Methods:
It is a theoretical and experimental study. The details of psychophysical method and device calibration were described. Preliminary tests were performed on volunteers.
Results:
It is a simple psychophysical test and results are expressed in International System of Units. With this technical description it will be possible to reproduce the experiment in others research centers.
Conclusion:
The results measured in luminous intensity (cd) are an option for visual studies. These results allow to extrapolate measurements for mathematical models and to simulate data for individual aberrometry effects.
More Related Videos
Related Concept Videos
Depth Perception and Spatial Vision
Sound Intensity Level
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...

