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Current Eye Research, 2017
To investigate whether macular anatomic structure and afferent visual system function differ among amblyopic eyes, non-amblyopic fellow eyes, and controls, using spectral-domain optical coherence tomography (SD-OCT), and pupil cycle time (PCT).This observational, cross-sectional study included 30 patients with unilateral amblyopia and 30 healthy ...
Tuncay, Kusbeci +3 more
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To investigate whether macular anatomic structure and afferent visual system function differ among amblyopic eyes, non-amblyopic fellow eyes, and controls, using spectral-domain optical coherence tomography (SD-OCT), and pupil cycle time (PCT).This observational, cross-sectional study included 30 patients with unilateral amblyopia and 30 healthy ...
Tuncay, Kusbeci +3 more
openaire +4 more sources
Neuro-Ophthalmology, 1987
The authors report a simplified method for the clinical application and interpretation of the pupil cycle time test (PCT-test time) in the diagnosis of uniocular optic neuropathies. It is shown that normal interocular differences of ten pupil cycles are less than 0.2 sec at a 99% confidence level, such interocular differences being a gaussian age ...
J. Alio +3 more
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The authors report a simplified method for the clinical application and interpretation of the pupil cycle time test (PCT-test time) in the diagnosis of uniocular optic neuropathies. It is shown that normal interocular differences of ten pupil cycles are less than 0.2 sec at a 99% confidence level, such interocular differences being a gaussian age ...
J. Alio +3 more
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Pupil Cycle Time in Optic Neuritis
American Journal of Ophthalmology, 1978A thin slit-lamp beam illuminating the pupil margin produced clearly visible pupil oscillations. These oscillations were timed with a stopwatch, thus producing a measurement of the "pupil cycle time". The pupil cycle time was remarkably stable in various testing situations and repeatable within +/- 3% over extended periods of time.
S D, Miller, H S, Thompson
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The measurement of pupil cycling time
Graefe's Archive for Clinical and Experimental Ophthalmology, 2000To assess the influence of pupil size on pupil cycling time (PCT), a measure which may be elongated in cases of neurological disease.Clinically, pupil "cycling" is produced by focusing a slit-lamp beam on the pupil margin. A rhythmic contraction and dilation of the pupil is produced, as changes in pupil size alternately prevent and allow the light beam
P A, Howarth, G, Heron, L, Whittaker
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Pupil Cycle Time in Optic Nerve Compression
American Journal of Ophthalmology, 1980We measured pupil cycle time before and after treatment in 11 patients with compressive optic nerve disease. Nine patients had chiasmal tumors and two had optic neuropathy of Grave's disease. Pupil cycle time before treatment was abnormal in at least one eye of all patients and in each case, pupil cycle time improved or worsened in accordance with the ...
J M, Weinstein +2 more
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Edge-light pupil cycle time and optic nerve disease.
Annals of ophthalmology, 1984Edge-light pupil cycle time is a quantitative measure of pupil reaction to light, dependent on the functioning of the afferent arm of the pupillary reflex arc. It has been used as an objective assessment of optic nerve function in various neuroophthalmic diseases.
W, Hamilton, R D, Drewry
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Cardiovascular Reflex Testing and Pupil Cycle Time in Open-Angle Glaucoma
Ophthalmologica, 1993The aim of the study is to assess the value of function tests of the autonomic nervous system in open-angle glaucoma by testing the cardiovascular reflexes and pupil cycle time. The experimental group consisted of 19 glaucoma subjects with controlled intraocular pressure. The control group consisted of 20 healthy volunteers.
L, Bojić +3 more
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