Page 223 - PowerPoint 演示文稿

Index 213
power progressive profile 141 Progressive addition lenses 129
rate of change plot 145 advantages 133
Optical factors 21 comfortable intermediate vision
Orientation of axis 34 134
continuous field of clear vision
P 133
continuous perception of space
Photochromic lenses 74 135
Plano-cylindrical surface 37 continuous support to eyes
Plus cylinder 19 accommodation 134
Polaroid lenses 78 no visible segments 133
advantages 80 optical design 136
application 79 length of progressive corridor
Postcataract aspheric lenses 98 137
Presbyopia and sports lens 204 width of distance and near zone
Prescribing tints 81 137
contrast enhancement 81 Properties of ophthalmic lenses 12
driving factors 82 abbe value 13
light sensitivity 81 absorption 14
luminous transmission factor 81 reflectance 13
reading comfort and performance
82 mechanical properties 15
reduced migraines 82 impact resistance 16
Principle of anti-reflection coating 85 scratch resistance 17
Prism and lens decentration 51 specific gravity 15
Prism controlled bifocals 119 optical properties 13
Prism controlled solid bifocal 122
Prism in aspheric lenses 97 R
Prism power 30
Prismatic effect 114 Reflection of light 84
Prisms 41 backwards reflection 85
characteristics 43 corneal reflection 85
diopter 43 frontal reflection 84
orientation 43 internal reflection 85
types 45 Regulations and standards relating to
different prism at distance and eye protection 186
near 47 Remarking progressive addition lenses
differential prism at near 46 152
prescribed prism 46 Resin photochromic lens 76
prism by decentration 45 Resolving prism 48
thinning prism 47 Resin material 10
worked prism for decentration CR 11
39
46 polycarbonate 11
uses of prism 47 trivex 11
diagnostic uses 47
therapeutic uses 48
Progressive addition lens designs 138 S
asymmetry and symmetry design
139 Safety lenses 174
hard and soft design 140 Sign convention 7
monodesign and multidesign 139 Single layer anti-reflection coating 87