A case of incomplete achromatopsia of the deutan type

✍ Scribed by D. Norren; E. C. Vries-De Mol

• Book ID: 104640198
• Publisher: Springer-Verlag
• Year: 1981
• Tongue: English
• Weight: 288 KB
• Volume: 51
• Category: Article
• ISSN: 0012-4486
• DOI: 10.1007/bf00143338

✦ Synopsis

A 45 year old man was studied who was previously diagnosed as a typical achromat. Increment spectral sensitivity measurements on white and several colored backgrounds showed that he possessed a rod system, a cone system sensitive in the short wavelength region (blue cones) and a cone system sensitive in the long wavelength region (red cones). This investigation shows that rather extensive testing is required to classify incomplete achromats.