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Pictures of full-field prism configurations (12Δ yoked prisms). (A) Meniscus full-field prisms mounted with the bevel positioned at the front surface. (B) Flat full-field prisms with bevel positioned at the back surface to mount to the frame (outward prism serration). (C) Flat prisms mounted with bevel positioned at the front surface (eyeward prism serration). Note that the prisms were mounted in a special frame with very narrow eyewire to reduce the thickness of the prism base.
