TY - RPRT TI - Ray tracing through a schematic eye containing second-order (quadric) surfaces using 4 x 4 matrix notation. AU - Achim Langenbucher AU - Arne Viestenz AU - Anja Viestenz AU - Holger BrĂ¼nner AU - Berthold Seitz PY - 2006 DO - 10.1111/j.1475-1313.2006.00346.x UR - https://pubmed.ncbi.nlm.nih.gov/16460318/ ID - 16460318 ER -