HexaVision肝素表面處理非球面人工晶體設計重慶南京

1、1會計學HexaVision肝素表面處理非球面人工晶肝素表面處理非球面人工晶體設計重慶南京體設計重慶南京HOYA (Anterior)Carl Zeiss (Acri. Tec)Canon- Staar;RaynerHumanOpticsHexaVision Aspheric XO2HexaVision Aspheric XO3HexaVision Aspheric XO4眼科學、視光學對人眼及人工晶體眼眼科學、視光學對人眼及人工晶體眼“準直狀態(tài)準直狀態(tài)”的論述的論述HexaVision Aspheric XO5HexaVision Aspheric XO6HexaVision Aspheri

2、c XO8HexaVision Aspheric XO9HexaVision Aspheric XO10HexaVision Aspheric XO12HexaVision Aspheric XO13球面表面與非球面表面的定義球面表面與非球面表面的定義Aspheric surface Zasph can be described:1。Radius (x) 2。Asphericity (Q）: Q = 0 is spherical, Q 0 is ellipses and prolate, which is flatter in the peripheral than in the center

3、HexaVision Aspheric XO14 Z asph (x) = cx2cx2cx21+ 1-(1+Q)c2x2HexaVision Aspheric XO15Z asph (x) =cx21+ 1-(1+Q)c2x2+ + A4 x4+ A6 x6+ A8 x8+ A10 x10HexaVision Aspheric XO16扁長橢球非球面可聚焦全部光線于一點以矯正人工晶體處于理論中心位置時的球差，但一旦人工晶體處于非準直狀態(tài)時它卻會產生各種高階像差。而非扁長橢球非球面在人工晶體處于理論中心位置時可能存在很小的球差，但它卻控制了當人工晶體處于非準直狀態(tài)時產生的各種高階像差。Hexa

4、Vision Aspheric XO17Pupil radius 3.5mmLongitudinal aberrationsDash line Spherical Aberration can be corrected by a Prolate surfaceSolid line High Order Aberrations can not be corrected by the Prolate surface, Require a Non-prolate surface.HexaVision Aspheric XO18HexaVision Aspheric XO19HexaVision As

5、pheric XO20HexaVision Aspheric XO21HexaVision Aspheric XO22HexaVision Aspheric XO27HexaVision Aspheric XO28HexaVision Aspheric XO29HexaVision Aspheric XO30HexaVision Aspheric XO31Corneal Asphericity (Q)MTF at 50 c/mm-0.130.26-0.210.33-0.260.43-0.310.71HexaVision Aspheric XO43Note, this analysis was

6、based on 20D XO lens. HexaVision Aspheric XO44HexaVision Aspheric XO45HexaVision Aspheric XO47眼科學、視光學對人眼及人工晶體眼眼科學、視光學對人眼及人工晶體眼“準直狀態(tài)準直狀態(tài)”的論述的論述HexaVision Aspheric XO48球面表面與非球面表面的定義球面表面與非球面表面的定義HexaVision Aspheric XO49Pupil radius 3.5mmLongitudinal aberrationsDash line Spherical Aberration can be corrected by a Prolate surfaceSolid line High Order Aberrations ca