Related Experiment Video
Updated: May 3, 2026

04:43
Visualizing Visual Adaptation
Published on: April 24, 2017
8.6K
Development of computerized color vision testing as a replacement for Martin Lantern
Gaurav Kapoor1, D P Vats2, J K S Parihar3
1Classified Specialist (Ophthalmology), 166 MH, C/o 56 APO, India.
Medical Journal, Armed Forces India
|February 18, 2014
Summary
A new software accurately replicates the Martin Lantern test for color vision screening. This computerized color vision testing offers a reliable replacement for outdated, out-of-production lantern tests.
Area of Science:
- Ophthalmology
- Vision Science
Background:
- Development of computerized color vision testing.
- Standardization of new methods to replace the Martin Lantern test.
- Non-randomized comparative trial design.
Purpose of the Study:
- To evaluate a computerized color vision test as a replacement for the Martin Lantern.
- To standardize computerized color vision testing procedures.
- To compare the accuracy and consistency of software-based testing with the traditional Martin Lantern.
Main Methods:
- Color vision testing of candidates at SSB, Allahabad.
- Utilized both computerized eye tests and existing tests.
- Compared Ishihara chart results with Martin Lantern and software outcomes for CP I, CP III, and CP IV classifications.
Main Results:
- High consistency between the Martin Lantern and software for color vision classification.
- CP I: 82 patients on Martin Lantern vs. 81 on software.
- CP III: 253 patients on Martin Lantern vs. 251 on software.
- CP IV: 147 patients on Martin Lantern vs. 149 on software.
Conclusions:
- The software accurately and consistently replicates the Martin Lantern test results.
- The Martin Lantern Software is a viable replacement for obsolete, non-produced Martin Lanterns.
- Computerized testing offers a modern, standardized approach to color vision assessment.
Related Concept Videos
Color Vision
2.0K
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
2.0K
Photoreceptors and Visual Pathways
8.5K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
8.5K

