title: Quantitative assessment of the impact of blood pulsation on images of the pupil in infrared light.
abstract: Pulsation in the blood vessels of the eye has a big impact on the dynamics of the entire eyeball and its individual elements. Blood pulsation in the retina can be recorded by the pupil, whose size is also subject to dynamic changes. The study involved synchronous measurements of pupil size using a high-speed camera, and blood pulsation using a pulse oximeter placed on the ear lobe. In addition, there were no metrologically significant differences in the phase shift between the average brightness of the individual pupil quadrants. Blood pulsation in other ocular tissues can affect the dynamics of the optical properties of the eye. As demonstrated in this paper, it affects the pupil behavior and its parameters to a considerable extent.
authors.forename: Robert
authors.initials: R
authors.lastname: Koprowski
authors.forename: Marta
authors.initials: M
authors.lastname: Szmigiel
authors.forename: Henryk
authors.initials: H
authors.lastname: Kasprzak
authors.forename: Zygmunt
authors.initials: Z
authors.lastname: Wróbel
authors.forename: Sławomir
authors.initials: S
authors.lastname: Wilczyński
mesh_terms: D000465:Algorithms; D001783:Blood Flow Velocity / Q000502:physiology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D007259:Infrared Rays; D010783:Photometry / Q000379:methods*; D011673:Pulsatile Flow / Q000502:physiology*; D011674:Pulse / Q000379:methods*; D011680:Pupil / Q000502:physiology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity