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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Optom Vis Sci. 2017 Aug;94(8):817–829. doi: 10.1097/OPX.0000000000001102

Figure 10.

Figure 10

MxP glasses for a monocular patient with a blind left eye. (A) Wraparound sunglasses with a 40Δ EPS conventional Press-On prism mounted over the bridge. The left extent of the prism could be much shorter than used here, but is inconsequential as it is in front of the blind eye. (B) Field substitution and an apical scotoma of 20º result with this conventional prism design. The unaided monocular field is shown within the dashed line. (C) Wraparound sunglasses with a 40Δ EPS MxP attached. (D) Field expansion without an apical scotoma is achieved with the prototype MxP in the same position. Lower contrast and visual confusion due to the multiplexing is expected but not shown here. The edges of the prism in (A) were highlighted in black to improve the visibility of the illustration.