Schellini, Silvana Artioli [UNESP]Sampaio Jr., Amilton A.Hoyama, ErikaCruz, Antônio A. V.Padovani, Carlos Roberto [UNESP]2014-05-272014-05-272005-12-01Orbit, v. 24, n. 4, p. 239-242, 2005.0167-68301744-5108http://hdl.handle.net/11449/68515Purpose: Spontaneous eye blink activity in the primary eye position and its relationship to age and gender were assessed using digital image processing techniques to quantify blink opening and closing time. Methods: One hundred-and-eighty healthy volunteers (90 males and 90 females), divided into the age groups 0-3, 4-12, 13-20, 21-40, 41-60 and ≥60 years old, were evaluated prospectively. They were videotaped digitally in a standard setting and the images were transferred to a personal computer (Macintosh 400) and processed with the iMovie software. Blink opening and closing time were measured at 30 frames/second. The data were then subjected to statistical analysis. Results: The closing time was significantly longer than the opening time for all ages and both genders. Elderly individuals (≥41 years old) and women had significantly longer closing times. Conclusion: Image processing techniques made possible the observation of differences in spontaneous eye blink opening and closing time in relation to age and gender. Copyright © 2005 Taylor & Francis LLC.239-242engBlink closing timeBlink opening timeDigital image processingSpontaneous eye blinkadolescentadultagedchildcomputer analysiscomputer programeye positioneyelid closureeyelid reflexfemalegendergroups by agehumanhuman experimentimage processinginfantmalemeasurementmicrocomputernewbornnormal humanprospective studyquantitative analysissex differencestatistical analysisstatistical significancevideorecordingAdolescentAdultAge FactorsBlinkingChildChild, PreschoolFemaleHumansImage Processing, Computer-AssistedInfantInfant, NewbornMaleMiddle AgedProspective StudiesSex FactorsStatistics, NonparametricVideotape RecordingArtigo10.1080/01676830590922057Acesso restrito2-s2.0-290444411379420249100835492