1Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts *[email protected]
Supplemental Digital Content: Appendix 1: the flat eyeward prism serration full-field prism is less practical than other configurations because of the mechanical issues (i.e., touching eyelashes or nose). Because we could not measure the effect perimetrically, we calculated field diagram using the result of ray tracining simulation. As shown in Fig. A1 (available at https://links.lww.com/OPX/A349), no field expansion into the blind side is expected with eye and/or head rotations to the right to fixate on the perimeter fixation target through full-field prisms.
The flat eyeward prism serration full-field prisms for acquired monocular vision (Fig. A1B) extend the FoV slightly farther into the nasal blindside because of higher effective prism power at the base than at the primary position of gaze. However, this configuration also results in the widest apical scotoma (15°). Therefore, this also provides field substitution at best.
Submitted: January 30, 2018
Accepted: June 19, 2018
Funding/Support: National Institute of Health (R01EY023385; to EP) and National Institute of Health (P30EY003790).
Conflict of Interest Disclosure: EP has patents rights (assigned to Schepens Eye Research Institute) for the peripheral oblique prisms and the multiplexing prisms (both licensed to Chadwick Optical).
Author Contributions and Acknowledgments: Conceptualization: J-HJ, EP; Data Curation: J-HJ; Formal Analysis: J-HJ; Funding Acquisition: EP; Investigation: J-HJ, EP; Methodology: J-HJ; Project Administration: J-HJ, EP; Resources: J-HJ, EP; Software: J-HJ, EP; Supervision: J-HJ, EP; Validation: J-HJ; Visualization: J-HJ; Writing – Original Draft: J-HJ; Writing – Review & Editing: J-HJ, EP.
The authors thank Merve Tuccar, Sailaja Manda, and Rachel Castle for their help with subject tests and preparation of figures.
Supplemental Digital Content: Direct URL links are provided within the text.
