Specifying colours for colour vision testing using computer graphics

Toufeeq, A

doi:10.1038/sj.eye.6701378

Cited by 9 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There have been a number of attempts to develop methods of color testing based on computer software; Pardo et al [21,22] have presented a system of characterizing red-green color vision anomalies by simulating the Pickford-Nicholson type anomaloscope on a cathode ray tubes (CRT) monitor. Toufeeq in 2004 has described an inexpensive computer based test for detection of color defect [23], also, Miyahara et al, developed a computerized system to diagnose red green color defects using Cathode Ray Tube (CRT) screen [24].…”

Section: Discussionmentioning

confidence: 99%

Ishihara Electronic Color Blindness Test: An Evaluation Study

Marey

Semary

Mandour

2015

View full text Add to dashboard Cite

Purpose: Evaluation of computer based color deficiency test. Materials and Methods: Two hundred and sixty seven volunteers have been checked using both traditional Ishihara plates and a computer diagnosis program using LCD monitors. Results: The prevalence of red green color vision deficiency (RG-CVD) was 8.75% of male participants, no female participants were diagnosed, both in the paper based test, and in the computer based test. Computer based test gave 100% sensitivity and 98.78% specificity. Conclusion: Presenting the computer based color deficiency test software on LCD screen can be used for screening of color vision deficiency with nearly similar sensitivity and specificity to the Ishihara test with the advantage reducing the cost through decreasing required resources over time, and decreasing the time to analyze the results.

show abstract

Section: Discussionmentioning

confidence: 99%

Ishihara Electronic Color Blindness Test: An Evaluation Study

Marey

Semary

Mandour

2015

View full text Add to dashboard Cite

show abstract

“…For example, the possibility of memorization is canceled by random stimulus displays. Also, external illumination is not required, there is no decay along their use, and they offer the possibility of assessing color perception along larger regions of the color space [25]. Other interesting benefits include easier administration, automated scoring, and integration with electronic health records.…”

Section: Introductionmentioning

confidence: 99%

Validation of a New Digital and Automated Color Perception Test

Fanlo-Zarazaga,

Echevarría,

Pinilla

et al. 2024

Diagnostics

View full text Add to dashboard Cite

Although color vision deficiencies are very prevalent, there are no ideal methods for assessing color vision in all environments. We compared a new digital and automated method that quantifies color perception for the three protan, deutan, and tritan axes with two of the most commonly used color tests in daily practice: the Ishihara 38 plates test and the Farnsworth–Munsell 100-Huetest. One hundred patients underwent a triple examination composed of the new DIVE Color Test, the Ishihara test, and the Farnsworth–Munsell 100-Huetest. The DIVE Color Test was performed twice in forty participants to assess its repeatability. In the trichromatic group, the mean age stood at 20.57 ± 9.22 years compared with 25.99 ± 15.86 years in the dyschromatic group. The DIVE and Ishihara tests exhibited excellent agreement in identifying participants with color deficiency (Cohen’s kappa = 1.00), while it was 0.81 when comparing DIVE and Farnsworth. The correlation between the global perception values of Farnsworth (TES) and DIVE (GCS) was 0.80. The repeatability of the DIVE Color Test was high according to Bland–Altman analysis with an intraclass correlation coefficient of 0.83. According to Ishihara, the DIVE Color Test proved to be an effective and reproducible tool for red–green color vision deficiency detection, capable of determining the severity of the defect in each of the three axes faster and more accurately than both Ishihara and Farnsworth.

show abstract

“…Other scoring issues centre on the lack of examiner training as well as misinterpretation of data due to unfamiliarity with normative data 12,13 . Furthermore, while the manual version is time intensive, computer‐based versions require calibration to achieve accurate hue rendition 14,15 …”

Section: Introductionmentioning

confidence: 99%

Hue discrimination in jewellery appraisers exceeds normal performance

Lovell

Rabin

2021

Ophthalmic Physiologic Optic

View full text Add to dashboard Cite

Purpose The FM‐100 Hue test is used for vocational purposes where hue discrimination is of the upmost importance, such as in jewellery appraisals where small errors in hue discrimination can lead to significant differences in gemstone valuation. The purpose of this study was to determine if the cone contrast test (CCT) could predict performance on the FM‐100 Hue, providing a potential alternative test for screening of jewellery appraisers. Methods Members of the National Association of Jewelry Appraisers (NAJA; n = 18, ages 34 to 76 years) requiring colour vision certification with the FM‐100 Hue were invited to participate in a study to assess performance on the Ishihara test, FM‐100 Hue, Lanthony Desaturated D‐15 and the CCT. The FM‐100 Hue test was administered to award or renew NAJA certification, while the CCT was included as a possible alternative certification test. Results Average CCT M and S cone scores were predictive of FM‐100 Hue total error score (TES: F1,16 = 7.77, p < 0.02; r2 = 0.33). The regression equation indicates that a CCT score of <60 is 3SD below the mean TES in our cohort of jewellery appraisers. Seventeen of 18 jewellery appraisers had FM‐100 Hue TES scores significantly below the lower limit for age‐matched normal values, indicating exceptional performance (p < 0.001). Conclusions Results indicate the CCT may be an effective substitute for the FM‐100 Hue to provide certification of jewellery appraisers, but the small sample size warrants additional comparative validation to support sole utilisation of the CCT. It is of interest that this sample of jewellery appraisers showed lower (i.e., better) than normal TES scores despite mitigating senescence factors. It is conceivable that the enhanced jewellery appraisers' hue discrimination reflects perceptual learning, wherein reward‐based repetition on specific tasks can improve performance, even in adulthood beyond critical periods.

show abstract

Specifying colours for colour vision testing using computer graphics

Cited by 9 publications

References 8 publications

Ishihara Electronic Color Blindness Test: An Evaluation Study

Ishihara Electronic Color Blindness Test: An Evaluation Study

Validation of a New Digital and Automated Color Perception Test

Hue discrimination in jewellery appraisers exceeds normal performance

Contact Info

Product

Resources

About