The effects of absence of stereopsis on performance of a simulated surgical task in two-dimensional and three-dimensional viewing conditions.
Bottom Line: 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).High-grade stereopsis confers an advantage when performing a fine motor task under direct vision.
Affiliation: Department of Ophthalmology, Royal Free London NHS Foundation Trust, London, UK University College London Medical School, London, UK.Show MeSH
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Mentions: Under monitor (2D) viewing conditions, we found no statistical difference in average number of balls placed within or between groups. Pairwise comparison within the multilevel model demonstrated that stereo-normal group performance with both and one eye open (6.6±0.37 and 6.3±0.32 balls, respectively) was comparable to that of the stereo-absent group (6.0±0.50 and 6.3±0.44 balls), with an estimated difference of means of 0.29 (95% CI −0.70 to 1.28) and p=0.579 (figure 5, table 3).
Affiliation: Department of Ophthalmology, Royal Free London NHS Foundation Trust, London, UK University College London Medical School, London, UK.