title: A technique to compensate the eye movement in dark adaptometry tests.
abstract: This paper describes a new technique to compensate the eye movements in dark adaptometry tests. The instrument is controlled by a personal computer and can be used in the investigation of several retinal diseases. The stimulus is delivered to the eye through the modified optics of a fundus camera using two light-channels: one for the stimulus presentation, and other for retinal visualization. Infrared images of the fundus are displayed on a video monitor and the stimulus position can be compensated in real time. These modifications provide the advantages of continuous monitoring of fixation and visualization of the retinal regions, thereby increasing the accuracy of dark adaptometry in patients with fixation problems.
authors.affiliation: Pontificia Univ. Catholic of the Rio Grande do Sul, Porto Alegre, RS, Brazil. dario@pucrs.com.br
authors.forename: Dario F G
authors.initials: DF
authors.lastname: de Azevedo
authors.forename: Sergio
authors.initials: S
authors.lastname: Helegda
authors.forename: Thais
authors.initials: T
authors.lastname: Russomano
authors.forename: Leo
authors.initials: L
authors.lastname: Fabricio
mesh_terms: D016477:Artifacts; D003623:Dark Adaptation / Q000502:physiology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005133:Eye Movements; D015203:Reproducibility of Results; D042261:Retinoscopes; D012680:Sensitivity and Specificity; D014787:Vision Tests / Q000295:instrumentation* / Q000379:methods