Related Experiment Videos
[Pupil--recent development of investigation]
1Department of Ophthalmology, School of Medicine, Kitasato University.
Rinsho Shinkeigaku = Clinical Neurology
|December 1, 1990
Summary
This study investigated normal pupil parameters and drug responses using infrared videopupillography. A novel finding shows denervation supersensitivity in 70% of brain-dead patients after pilocarpine instillation.
Area of Science:
- Ophthalmology
- Neuroscience
- Pharmacology
Context:
- Pupil system research at Kitasato University's Ophthalmology Department.
- Utilized novel infrared videopupillography (Iriscorder C-2515) for precise measurements.
- Investigated pupil dynamics across diverse age groups (10-70 years).
Purpose:
- To establish normal pupil parameters in various age groups.
- To analyze pupil response to photic stimulation (3000 trolands).
- To evaluate drug responses, specifically pilocarpine, using photographic and pharmacological methods.
Summary:
- Normal pupil parameters were determined in individuals aged 10-70 years.
- Pupil responses to light and pilocarpine were analyzed.
- Denervation supersensitivity was observed in 70% of brain-dead patients following pilocarpine instillation.
Impact:
- Provides baseline data for normal pupil parameters.
- Highlights the potential of pupil response in determining brain death.
- Offers new insights into pharmacological responses in critically ill patients.