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The effects of absence of stereopsis on performance of a simulated surgical task in two-dimensional and three-dimensional viewing conditions

Identifieur interne : 001C17 ( Pmc/Corpus ); précédent : 001C16; suivant : 001C18

The effects of absence of stereopsis on performance of a simulated surgical task in two-dimensional and three-dimensional viewing conditions

Auteurs : Edward Bloch ; Nabil Uddin ; Laura Gannon ; Khadija Rantell ; Saurabh Jain

Source :

RBID : PMC:4316921

Abstract

Background

Stereopsis is believed to be advantageous for surgical tasks that require precise hand-eye coordination. We investigated the effects of short-term and long-term absence of stereopsis on motor task performance in three-dimensional (3D) and two-dimensional (2D) viewing conditions.

Methods

30 participants with normal stereopsis and 15 participants with absent stereopsis performed a simulated surgical task both in free space under direct vision (3D) and via a monitor (2D), with both eyes open and one eye covered in each condition.

Results

The stereo-normal group scored higher, on average, than the stereo-absent group with both eyes open under direct vision (p<0.001). Both groups performed comparably in monocular and binocular monitor viewing conditions (p=0.579).

Conclusions

High-grade stereopsis confers an advantage when performing a fine motor task under direct vision. However, stereopsis does not appear advantageous to task performance under 2D viewing conditions, such as in video-assisted surgery.


Url:
DOI: 10.1136/bjophthalmol-2013-304517
PubMed: 25185439
PubMed Central: 4316921

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