Color Vision Ch.8 Flashcards
peak sensitivity for S cones
425 nm
peak sensitivity for M cones
530 nm
peak sensitivity for L cones
560 nm
ratio of L: M: S cones
10L : 5M : 1S
___ % of males have some form of CVD
about 8%
definition of anomalous trichromats
- 3 one photopigments
- 1 of the photopigments is “different” than normal
prevalence of anomalous trichromats
~6% males
<0.4% females
SWS anomalous trichromacy is called
tritanomaly
MWS anaomalous trichromacy is called
deuteranomaly
prevalence of deuteranomaly (DA)
5% of males
prevalence of protanomaly (PA)
1% of males
definition of dichromats
- 2 cone photopigments
- 1 of the photopigments is missing
prevalence of dichromats
2% of males
<0.2% of females
dichromat with SWS missing
tritanopia
dichromat with MWS missing
deutranopia
prevalence of deuteranopia
1% of males
dichromate with LWS missing
protanopia
prevalence of protanopia
1% of males
how does the action spectrum shift in anomalous trichromats?
affected photopigment’s action spectrum is shifted toward the other ‘normal’ photopigment
dichromats: SWS is coded for on what chromosome?
chromosome 7
what inheritance pattern is for blue-yellow deficiency (SWS)?
autosomal dominant (AD)
dichromats: MWS/LWS coded for on what chromosome?
on the X-chromosome
what inheritance pattern is for red-green deficiency (MWS/LWS)?
x-linked recessive (XLR)
prevalence of rod monochromats?
< 1 in 30,000