Abstract
Natural stereopsis is better with a large interpupillary distance (IPD). With haploscopic devices, depth perception is better with a small IPD. This apparently unknown fact has been trigonometrically calculated and experimentally shown by enlarging and diminishing the IPD in 20 subjects.
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References
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Lang, J., Rechichi, C. & Stürmer, J. Natural versus haploscopic stereopsis. Graefe's Arch Clin Exp Ophthalmol 229, 115–118 (1991). https://doi.org/10.1007/BF00170541
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DOI: https://doi.org/10.1007/BF00170541