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Related Experiment Video

Updated: Jun 13, 2026

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Published on: March 29, 2022

Binocular function in pseudophakic children.

Malcolm R Ing¹

¹John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA.

Journal of Pediatric Ophthalmology and Strabismus

|May 5, 2010

Summary

Children with intraocular lenses (IOLs) after childhood cataract removal often achieve good motor alignment and fusion. However, fine stereopsis remains uncommon in these pseudophakic patients.

Area of Science:

Ophthalmology
Pediatric ophthalmology
Visual neuroscience

Background:

Childhood cataracts require early intervention, often involving intraocular lens (IOL) implantation.
Long-term visual outcomes and binocular function in pediatric pseudophakia are critical areas of study.

Purpose of the Study:

To evaluate visual and binocular function in children who underwent primary IOL insertion after childhood cataract removal.
To assess the prevalence of motor alignment, fusion, and stereopsis in this patient group.

Main Methods:

Monocular and binocular tests were conducted on 21 pediatric patients with primary IOLs.
Patient histories were abstracted from clinical records, with a minimum 5-year follow-up.
Sensory testing for binocularity used standardized equipment.

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Main Results:

The mean age at first surgery was 6.3 years, with a mean follow-up of 10.3 years.
Most patients (19/21) showed motor alignment within 8 prism diopters of orthotropia.
Fusion and some stereopsis were present in 15 patients, but only 4 had fine stereoacuity (≤60 arc seconds).

Conclusions:

While many pseudophakic children achieve satisfactory motor alignment and fusion, fine stereopsis is rarely attained.
Quality of best-corrected visual acuity differed between patients with fine versus gross stereoacuity.