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Updated: May 13, 2026

Stereoacuity Improvement using Random-Dot Video Games

Stereoacuity Improvement using Random-Dot Video Games

Published on: January 14, 2020

Stereoacuity following LASIK.

Hassan Razmjoo¹, Mohammad-Reza Akhlaghi, Ali-Reza Dehghani

¹Isfahan University of Medical Sciences, Isfahan, Iran.

Journal of Ophthalmic & Vision Research

|March 13, 2013

Summary

Laser eye surgery (LASIK) generally improves stereoacuity (SA) over three months. However, some patients experience decreased SA, particularly those with anisometropia, while others see significant gains.

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Last Updated: May 13, 2026

Stereoacuity Improvement using Random-Dot Video Games

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Published on: September 20, 2024

Area of Science:

Ophthalmology
Vision Science

Background:

Laser in situ keratomileusis (LASIK) is a common refractive surgery.
Assessing its impact on binocular vision, specifically stereoacuity (SA), is crucial for patient outcomes.

Purpose of the Study:

To evaluate the effect of LASIK surgery on stereoacuity (SA).

Main Methods:

Prospective study of 200 patients undergoing LASIK.
SA measured preoperatively and at 1 week, 1 month, and 3 months postoperatively using the Random Dot test.
Exclusion of patients with preoperative SA worse than 480 sec/arc.

Main Results:

Mean SA initially deteriorated one week post-LASIK but improved significantly by one and three months (P=0.002, P=0.001).
Overall, 32.5% of patients showed improved SA, 9.5% decreased SA, and 58% remained unchanged (P=0.007).
Anisometropic patients without amblyopia demonstrated potential for SA improvement.

Conclusions:

LASIK surgery leads to an overall improvement in mean SA.
A small percentage of patients may experience a decline in SA post-LASIK.
Anisometropia without amblyopia may be a predictor for enhanced SA after LASIK.