Literature DB >> 34290440

The pupillary dynamics of patients with physiological anisocoria.

Hilal Kılınç Hekimsoy1, Mehmet Ali Şekeroğlu2, Nurtaç Yeşilyaprak2, Sibel Doğuizi2, Pelin Yılmazbaş3.   

Abstract

BACKGROUND: To evaluate static pupillometric measurements and making inter-ocular comparative analysis in healthy subjects for demonstrating the prevalance of physiological anisocoria in various lighting conditions and to compare the variations of the dynamic pupillometric measurements of the patients with physiological anisocoria.
METHODS: Automatic quantitative pupillometry system was used to measure pupillary diameters in low mesopic (0.1 cd/m2), high mesopic (1 cd/m2), low photopic (10 cd/m2) and high photopic (100 cd/m2) conditions. After inter-ocular comparison of these data, the prevalance of physiological anisocoria was detected in four different lighting conditions. The inter-ocular dynamic pupillometric parameters (amplitude, latency, duration and velocity of pupil contraction; latency, duration and velocity of pupil dilation) of these patients were further analysed.
RESULTS: After inter-ocular comparison of pupillary diameters of 195 participants [96 females (49.2%) and 99 males (50.8%)] with a mean age of 38.4 ± 18.9 years (range 7-78 years), six (3.1%) participants under high photopic; 11 (5.6%) participants under low photopic; 25 (12.8%) participants under high mesopic, and 34 (17.4%) participants under low mesopic illumination levels exhibited physiological anisocoria. The mean relative amplitude of anisocoric small pupils' contraction was lower than the mean relative amplitudes of pupil contraction of both isocoric and anisocoric large pupils (p = 0.021, p = 0.035, respectively). The mean velocity of anisocoric small pupils' contraction was lower than the mean velocity of anisocoric large pupils' contraction (p = 0.013).
CONCLUSIONS: The mean contraction amplitude and contraction velocity of smaller pupils was lower when compared to fellow larger pupils of anisocoric patients.
© 2021. The Author(s), under exclusive licence to The Royal College of Ophthalmologists.

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Mesh:

Year:  2021        PMID: 34290440      PMCID: PMC9307830          DOI: 10.1038/s41433-021-01696-7

Source DB:  PubMed          Journal:  Eye (Lond)        ISSN: 0950-222X            Impact factor:   4.456


  25 in total

1.  Latency of the pupil light reflex: sample rate, stimulus intensity, and variation in normal subjects.

Authors:  Oliver Bergamin; Randy H Kardon
Journal:  Invest Ophthalmol Vis Sci       Date:  2003-04       Impact factor: 4.799

2.  Effect of age on the pupillomotor field.

Authors:  Ruediger Schmid; Per Ceurremans; Holger Luedtke; Barbara J Wilhelm; Helmut M Wilhelm
Journal:  J Neuroophthalmol       Date:  2004-09       Impact factor: 3.042

3.  Anisocoria. Variation and clinical observation with different conditions of illumination and accommodation.

Authors:  E R Ettinger; H J Wyatt; R London
Journal:  Invest Ophthalmol Vis Sci       Date:  1991-03       Impact factor: 4.799

4.  Incidence of anisocoria and difference in size of palpebral fissures in five hundred normal subjects.

Authors:  B C MEYER
Journal:  Arch Neurol Psychiatry       Date:  1947-04

5.  "Simple central" anisocoria: a common condition, seldom recognized.

Authors:  I E Loewenfeld
Journal:  Trans Sect Ophthalmol Am Acad Ophthalmol Otolaryngol       Date:  1977 Sep-Oct

6.  The prevalence of simple anisocoria.

Authors:  B L Lam; H S Thompson; J J Corbett
Journal:  Am J Ophthalmol       Date:  1987-07-15       Impact factor: 5.258

7.  Static and dynamic pupillometry data of healthy individuals.

Authors:  Kemal Tekin; Mehmet Ali Sekeroglu; Hasan Kiziltoprak; Sibel Doguizi; Merve Inanc; Pelin Yilmazbas
Journal:  Clin Exp Optom       Date:  2018-01-21       Impact factor: 2.742

8.  Factors affecting light-adapted pupil size in normal human subjects.

Authors:  B Winn; D Whitaker; D B Elliott; N J Phillips
Journal:  Invest Ophthalmol Vis Sci       Date:  1994-03       Impact factor: 4.799

9.  Evaluation of static and dynamic pupil characteristics in hyperopic anisometropic amblyopia.

Authors:  Esat Yetkin; Kemal Tekin; Hasan Kiziltoprak; Mehmet Ali Sekeroglu; Veysel Cankurtaran; Hakan Halit Yasar
Journal:  Eur J Ophthalmol       Date:  2018-10-04       Impact factor: 2.597

Review 10.  Understanding the effects of mild traumatic brain injury on the pupillary light reflex.

Authors:  Kenneth J Ciuffreda; Nabin R Joshi; James Q Truong
Journal:  Concussion       Date:  2017-08-03
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