Visual acuity as a reinforcement in learning to control pupil size

1962 ◽  
Vol 5 (5) ◽  
pp. 428-433 ◽  
Author(s):  
Clark J. Bailey ◽  
Lloyd Guth
Keyword(s):  
Visual Acuity ◽  
Pupil Size

Effect of Pupil Size on Dynamic Visual Acuity

2007 ◽  
Vol 104 (1) ◽  
pp. 267-272 ◽  
Author(s):  
Tetsuo Ueda ◽  
Yoshiaki Nawa ◽  
Masahiro Okamoto ◽  
Yoshiaki Hara
Keyword(s):  
Visual Acuity ◽  
Pupil Size ◽  
Dynamic Visual Acuity

The Effect of Pupil Size on Visual Acuity in Uncorrected and Corrected Myopia

1979 ◽  
Vol 56 (5) ◽  
pp. 315-323 ◽  
Author(s):  
DAVID A. ATCHISON ◽  
GEORGE SMITH ◽  
NATHAN EFRON
Keyword(s):  
Visual Acuity ◽  
Pupil Size

Correlation between visual acuity and pupil size

2004 ◽  
Author(s):  
Silvia A. Comastri ◽  
Rodolfo M. Echarri ◽  
T. Pfortner
Keyword(s):  
Visual Acuity ◽  
Pupil Size

scholarly journals Effect of pupil size on uncorrected visual acuity in astigmatic eyes

2011 ◽  
Vol 96 (2) ◽  
pp. 267-270 ◽  
Author(s):  
Kazutaka Kamiya ◽  
Hidenaga Kobashi ◽  
Kimiya Shimizu ◽  
Takushi Kawamorita ◽  
Hiroshi Uozato
Keyword(s):  
Visual Acuity ◽  
Pupil Size ◽  
Uncorrected Visual Acuity

The effects of age and refraction on pupil size and visual acuity: Implications for multifocal contact lens design and fitting

2018 ◽  
Vol 41 ◽  
pp. S23
Author(s):  
Kathy Dumbleton ◽  
Michel Guillon ◽  
Panagiotis Theodoratos ◽  
C. Benjamin Wooley ◽  
Kurt Moody
Keyword(s):  
Visual Acuity ◽  
Contact Lens ◽  
Pupil Size ◽  
Lens Design

Retrospective Evaluation of the Influence of Pupil Size on Visual Acuity After KAMRA Inlay Implantation

2014 ◽  
Vol 30 (7) ◽  
pp. 448-453 ◽  
Author(s):  
Minoru Tomita ◽  
Tomomi Kanamori ◽  
George O. Waring ◽  
Tukezban Huseynova
Keyword(s):  
Visual Acuity ◽  
Pupil Size ◽  
Retrospective Evaluation

Effect of Pupil Size on Visual Acuity in a Laboratory Model of Pseudophakic Monovision

2010 ◽  
Vol 26 (5) ◽  
pp. 378-380 ◽  
Author(s):  
Takushi Kawamorita ◽  
Hiroshi Uozato ◽  
Tomoya Handa ◽  
Misae Ito ◽  
Kimiya Shimizu
Keyword(s):  
Visual Acuity ◽  
Pupil Size ◽  
Laboratory Model

scholarly journals Temporal Effects of 2% Pilocarpine Ophthalmic Solution on Human Pupil Size and Accommodation

2020 ◽  
Vol 185 (Supplement_1) ◽  
pp. 435-442 ◽  
Author(s):  
Micah Kinney ◽  
Andrew D Johnson ◽  
Michael Reddix ◽  
Mary B McCann
Keyword(s):  
Visual Acuity ◽  
Pupil Size ◽  
Ophthalmic Solution ◽  
Visual Performance ◽  
Eye Drops ◽  
Combined Effects ◽  
Performance Measurements ◽  
Near Vision ◽  
Ocular Symptoms ◽  
Low Levels

ABSTRACT Introduction First responders and those who work with organophosphate (OP) compounds can experience ocular symptoms similar to those caused by exposure to low levels of nerve agents. This study was designed to examine the efficacy of a safe, clinically available, simulant that reproduces ocular symptoms associated with low-level OP exposure. Among these ocular symptoms are a constriction of the pupils (miosis), decreased visual acuity, and changes in accommodation. Materials and Methods Volunteers aged 18–40 were assigned to groups receiving either a two-drop or three-drop dose of FDA approved 2% pilocarpine ophthalmic solution. Baseline visual performance measurements were taken before eye drop instillation and a timer was started following the first drop of pilocarpine. Once eye drops were administered, visual performance including distant and near vision, pupil size, and accommodation were measured every 5 minutes for 2 hours. Results Both groups experienced significant miosis in excess of 90 minutes. Visual acuity was significantly reduced because of accommodative changes. The three-drop group experienced longer lasting combined effects when compared to the two-drop group. Conclusions 2% pilocarpine ophthalmic solution can safely simulate major ocular symptoms of OP exposure for behavioral research studies for at least 60 minutes.

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