Search results for " Eye"
showing 3 items of 383 documents
Optical quality of hyperopic and myopic phakic intraocular lenses
2013
Aims: To assess and compare the optical quality of the myopic and hyperopic implantable collamer lens (ICL) from its wavefront aberrations for different powers and pupil diameters. Settings and Design: Prospective study. Material and Methods: The wavefront aberrations of two myopic (−3 and −6 diopters (D)) and two hyperopic V4b ICLs (+3 and +6D) were measured in vitro . To assess and compare the optical quality of different powers of ICLs, we analyzed the root mean square (RMS) of total higher order aberrations (HOAs), trefoil, coma, tetrafoil, secondary astigmatism, and spherical aberration at 3- and 4.5-mm pupil. In addition, the point spread functions (PSFs) of each ICL evaluated were ca…
Cardiac cycle and respiration phase affect responses to the conditioned stimulus in young adults trained in trace eyeblink conditioning
2022
Rhythms of breathing and heartbeat are linked to each other as well as to rhythms of the brain. Our recent studies suggest that presenting the conditioned stimulus during expiration or during the diastolic phase of the cardiac cycle facilitates neural processing of that stimulus and improves learning an eyeblink classical conditioning task. To date, it has not been examined whether utilizing information from both respiration and cardiac cycle phases simultaneously allows even more efficient modulation of learning. Here we studied whether the timing of the conditioned stimulus to different cardiorespiratory rhythm phase combinations affects learning trace eyeblink conditioning in healthy you…
Silto acu komprešu ietekme uz acs asaru slāņa īpašībām
2021
Pētījuma mērķis bija novērtēt silto komprešu terapijas efektivitāti uz asaru slāņa īpašībām pacientiem ar sausas acs subjektīvo simptomātiku. 18 pētījuma dalībniekieki, lietojot TheraPearl acu maskas divas reizes dienā no rīta un vakarā pa 5 vai 10 minūtēm, veica silto komprešu terapiju 14 dienu periodā. Diagnostikie mērījumi pirms terapijas, pēc terapijas un trīs nedēļas pēc terapijas beigām tika veikti asaru slāņa īpašību novērtēšanai. Dalībnieki pēc terapijas uzrādīja ievērojamu OSDI un DEQ-5 anketu rezultāta uzlabošanos un uzlabojums saglabājās arī trīs nedēļas pēc terapijas beigām. Pēc terapijas netika novērots statiski būtisks uzlabojums neinvazīvajā asaru slāņa plīšanas laikā (NIBUT).