+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Hand-held pupillometer for evaluating pupillary light reflex in general practice and at the bedside



Hand-held pupillometer for evaluating pupillary light reflex in general practice and at the bedside



Der Ophthalmologe 91(2): 191-193



Owing to the sophisticated equipment currently required for the investigation of pupillary behavior, pupillographic procedures are still the preserve of a few specialized laboratories. To allow pupillographic measurements under ophthalmological office conditions, we designed a portable pupillometer that can also be used for bedside examinations. Following a defined light stimulus, the prototype presented in this paper records a direct pupillary light reflex on the basis of infrared reflex photometry. The latency of the pupillary reflex and the pupillary constriction time are determined and shown on a digital display.

(PDF emailed within 1 workday: $29.90)

Accession: 046211155

Download citation: RISBibTeXText

PMID: 8012135


Related references

Influence of Propofol and Remifentanil on Pupillary Light Reflex Assessed by a Hand-held Point-and-shoot Pupillometer. Masui. Japanese Journal of Anesthesiology 66(2): 174-176, 2017

Age changes in pupillary light reflex. A demonstration by means of a pupillometer. Nippon Ganka Gakkai Zasshi 93(10): 955-961, 1989

A portable pupillometer system for measuring pupillary size and light reflex. Behavior Research Methods Instruments & Computers 21(6): 611-618, 1989

The cause of increased pupillary light reflex latencies in diabetic patients: the relationship between pupillary light reflex and visual evoked potential latencies. Electroencephalography & Clinical Neurophysiology 78(2): 111-115, 1991

Simultaneous analysis of the phasic pupillary light reflex and the visual evoked response in the differential diagnosis of pupillary reflex disturbances. Electroencephalography & Clinical Neurophysiology: 133, 1977

The pupillary light reflex. 2. Prevalence of pupillary autonomic neuropathy in diabetics using age-dependent and age-independent pupillary parameters. Ophthalmologica 204(3): 143-148, 1992

Pupil cycle induction test: a way of evaluating the pupillary light reflex. Ophthalmologica. Journal International d'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift für Augenheilkunde 183(4): 205-213, 1981

Morphine induced changes in pupillary light reflex pupillary fluctuation and pupillary size in the cat. Federation Proceedings 43(4): ABSTRACT 3246, 1984

The effects of anesthetic agents on pupillary function during general anesthesia using the automated infrared quantitative pupillometer. Journal of Clinical Monitoring and Computing 31(2): 291-296, 2016

The effect of ketamine and nitrous oxide on the human pupillary light reflex during general anesthesia. Autonomic Neuroscience 152(1-2): 108-114, 2010

Portable hand-held pupillometer with dynamic electronic image centering aid and method of use thereof. Official Gazette of the United States Patent & Trademark Office Patents 1200(2): 1483, July 8, 1997

Portable hand-held pupillometer with dynamic electronic image centering aid and method for use thereof. Official Gazette of the United States Patent & Trademark Office Patents 1221(1), 15-JUN-99, 1999

Effect of age on pupillary light reflex: evaluation of pupil mobility for clinical practice and research. Electromyography and Clinical Neurophysiology 47(1): 11-22, 2007

Influence of retinal adaptation upon the pupillary reflex to light in normal man. II. Effect of adaptation to dim illumination upon pupillary reflexes elicited by bright light. American Journal of Ophthalmology 51: 644-654, 1961

Pupillary dilation reflex and pupillary pain index evaluation during general anaesthesia: a pilot study. Romanian Journal of Anaesthesia and Intensive Care 25(1): 19-23, 2018