artificial pupil1.Pupil made by iridectomy.2.A circular aperture made in a diaphragm which can be mounted in front of the eye to provide a constant and smaller pupil size. It is used in research but also as a clinical test.Seepinhole disc. ...
Define Pupil constriction. Pupil constriction synonyms, Pupil constriction pronunciation, Pupil constriction translation, English dictionary definition of Pupil constriction. Noun 1. pupillary reflex - reflex contraction of the sphincter muscle of the ir
In the second part of the experiment, the perception task was performed while viewing the patterns through an artificial “pupil” of adjustable size. Although this method allowed for systematic control of the amount of light stimulating the pupil, it is difficult to generalize these results to a...
An evaluation of pupil size standards used by police officers for detecting drug impairment. Optometry. 2004; 75(3): p1-8.Richman JE,McAndrew KG,Decker D,Mullaney SC. An evaluation of pupil size standards used by police officers for detecting drug impairment[J].Journal of the Ame...
Performing cataract surgery in an eye with a midsized pupil of about 3 or 4 mm diameter does not typically require the use of iris hooks or iris expansion devices. The surgeon can simply instill anesthetic and mydriatric agents and then use the OVD to perform viscomydriasis, which will pr...
Tonic pupil size and/or ERPD might be used prospectively as an easy-to-use and inexpensive biomarker to identify responders to taVNS and to optimally tune stimulation parameters, given that a clear effect of taVNS on at least one pupillary parameter can be established. Results Resting ...
the simulation of this system has a contrary effect – a dose of heroin impels its users’ pupils to contract, as the drug heavily relaxes a user’s muscles to the extent of inactivity. It seems, however, that the changes in pupil size are byproducts of the nervous system processing vital...
which yields an output signal proportional to pupil size that can be recorded on thepolygraphor in the computer. An accumulation of evidence indicates that the pupillary response measures the proportion of totalcognitive processingcapacity that has been invested in the analysis of the eliciting stimulu...
Postoperative topical non-steroidal anti-inflammatory drug (NSAID) use was ignored due to its significant collinearity with diabetes and small sample size. P-values ≤ 0.05 were considered statistically significant. Results Included were 1266 eyes operated with mechanical pupil dilatation. The mean ...
the pupil size may be enlarged by ICL fixation, especially when the amount of vaulting is large, possibly as a result of the larger ICL size selection.18 It is suggested that an appropriate ICL size selection may also be an important factor in determining the postoperative pupil diameter in ...