Search results for "Color test"
showing 3 items of 3 documents
Fona adaptācijas ietekme uz datorizētā krāsu sakārtošanas un FM-100 testa rezultātiem
2021
Šis darbs ir uzrakstīts angļu valodā uz 25 lappusēm, 16 attēliem, 1 tabulas un 27 atsaucēm. Gandrīz daudzi cilvēki cieš no iedzimta vai iegūta krāsu redzes deficīta. Tīklenē ir fotopigments, kas ir atbildīgs par krāsu redzi, ko sauc par konusu, kurā konusos esošajam opsinam ir izšķiroša nozīme krāsu uztverē, un viss mehānisms ir pabeigts smadzeņu pakauša daivā. Šis pētījums tika veikts 15 dalībniekiem, veicot krāsu redzamības novērtējumu FM-100, kas veikts datorā ar atšķirīgu fonu, lai zinātu datorizētā izvietojuma testa fona un FM-100 krāsu redzes testa rezultātu sekas. Pētījuma secinājums par virzīšanos uz priekšu no viena testa uz otru, ti, testa rezultāts ir hromatisks vai ahromatisks, …
Color memory in children
2008
The methods of simultaneous and memory color matching have been studied for a set of five Munsell color samples by 50 children, 25 boys and 25 girls (ranging in age from 9 to 11 years). By comparison between this group and one of 50 young adult observers, we can deduce the following: (a) In children, as in young adults, the mean CIELAB total color difference, ΔE*ab, in simultaneous color matching is lower than the ΔE*ab by memory color matching. (b) Children matched reference test worse than young adults for orange, bluish green (only boys and men) and yellow green (only girls and women). (c) While men remember, independently of age and delay time, violet reference test worse than women (P …
ATD perimetry in glaucoma and ocular hypertensive patients. A preliminar study
2007
Purpose: The new ATD perimetry assesses contrast sentivity thresholds for the three afferent sensory pathways of the visual system. Our aim is to compare contrast sensitivity to stimuli with different spatio-temporal frequencies in glaucomatous (G) and ocular hypertensive (OHT) subjects. Methods: Twenty three G and OHT subjects were selected from the ophthalmic clinic, all subjects signed an informed consent. Inclusion criteria were diagnosis of G or OHT, normal Farnsworth-Munsell color test, ametropia less than 6 D, visual acuity over 20/30, absence of previous ocular surgery and experience in perimetry. Twenty locations and the fovea were evaluated in a 60o x 40o fovea-centered field. Eig…