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Pupillary dynamics in patients with primary open angle glaucoma
1Department of Ophthalmology, Osaka Medical College, Japan.
Bulletin of the Osaka Medical College
|November 1, 1990
Summary
Autonomic nervous system abnormalities affecting pupillary light reflexes are common in primary open angle glaucoma (POAG). These pupillary changes, including afferent pupillary defect (APD), were observed in most patients, regardless of glaucoma severity.
Area of Science:
- Ophthalmology
- Neuroscience
- Autonomic Nervous System
Background:
- Neurological status evaluation is crucial in primary open angle glaucoma (POAG).
- Pupillary dynamics reflect autonomic nervous system control and are important in POAG assessment.
Purpose of the Study:
- To analyze pupillary dynamics and light reflex patterns in POAG patients.
- To investigate autonomic nervous system abnormalities influencing pupillary responses in POAG.
Main Methods:
- Infrared videopupillography used to measure pupil size and light reflex in 13 POAG patients.
- Analysis of pupillary light reflexes compared with simulated patterns after topical autonomic agents.
- Investigated effects of topical adrenergics (dipivalyl epinephrine) on pupil responses.
Main Results:
- Autonomic abnormalities (cholinergic, adrenergic, physiological mydriatic reflex patterns) detected in 11 eyes of 6 patients.
- Normal pupillary light reflex pattern found in only 2 eyes of one patient.
- Afferent pupillary defect (APD) pattern detected in all 13 eyes; degree of APD not correlated with visual field defect stage.
Conclusions:
- Significant pupillary autonomic abnormalities are prevalent in POAG patients.
- APD is consistently present in POAG but its severity does not correlate with the stage of visual field defects.