A
Aberrations
classification of 105
measurement of 105
root mean square measurement of 105f
third-order 118
Zernike description of 111t
Aberrometers 106
Ablation zone 195
Abnormal anterior difference map 197f
Accommodation 106
Achromatic axis 3
Airy pattern 107f
Anterior refractive power map 35f
Anterior segment optical coherence tomographers-based tomography 12f
Apex position 17
Aqueous humor 30
Arcuate incision 220f
Aspheric lenses 169
Astigmatic aberration 117
B
Back vertex distance 95
Belin ABCD grading system 180
Bell and Globus patterns, high-risk 165f
Best-corrected visual acuity 88
Bowman's layer 89
C
Capture, validating quality of 22
Central flat island 88f
Chamber volume 31
Clown face 43f
Color map appearance 16
Cone location and magnitude index 185
Conventional camera 11f
back, posterior surface 30
front, anterior surface 29
irregular 61f
normal high-astigmatic 209
parabolic 135f
positive-prolate 130f
volume 31
Corneal and ocular spherical aberration, range of 133f
Corneal apex power 185
Corneal changes with age 109
Corneal curvature map, patterns of 37
Corneal dimensions 5
Corneal epithelium, effect of 6f
Corneal incisions 220f
Corneal irregularities 218
Corneal landmarks 30f
Corneal levels 106
Corneal optics 3
Corneal pathologies 148
Corneal refraction 81
overlay for 22f
Corneal topography 94
Corneal toricity 75
Corneal zones 6
Corrected distance visual acuity 180
Crab claw 43f
Crystalline lens changes with age 109
Cycloplegic refraction 94
E
Ectatic corneal diseases 31, 48, 54, 78f, 79f, 95, 110, 143, 173, 171, 173t, 180, 184, 185t, 189, 206, 218
diagnosis of 64
early 110
evaluation of 21
grading systems of 180
tomographic characteristics of 173
Emmetropia 139
Epithelium, remodeling characteristic of 7f
Equivalent K-reading power map 35
Eye, optical system of 3f
H
Height asymmetry, index of 185
Horizontal white-to-white diameter 222
Human eye, optical system of 3
Hybrid devices 13
I
Incision
clock-hour extension of 221f
length 220f
location 220f
orientation 221f
planes 221f
shape 220f
Inferior meniscus pattern 201f
Inferior steep 40f
Internal aberration compensation 109
Intraocular pressure 31
K
Keratoconic cornea 183f
Keratoconic eye 145f
Alio-Shabayek classification of 181t
Amsler-Krumeich classification of 180t
peripheral 10
progression 187f
Keratometric dioptric power 95
Keratoplasty, penetrating 87
K-readings after corneal crosslinking, changes of 188f
L
Lamellar ablation 87
Lamellar keratoplasty 89
Lazy S-shape pattern 72f
Lenticular astigmatism 99
Light-emitting diodes 10
Limbal zone 6
Low-risk irregular curvature map 168
M
Macro-irregular pattern 87
Maps 206
Mean anterior keratometry 167
Mean posterior keratometry 167
Mercedes-Benz image 119f
Meridians 5
Micro-irregular pattern 87
Mild peripheral extrapolation 19f
Minimum radius position front 17
Myopia 139
N
Negative spherical aberration 131f
Nodular point 3
Nonoptimum spectacle-corrected distance visual acuity 91
Nontoxic spherical aberration 138f
O
Objective spherocylindric dioptric power 95
Oblate curvature pattern 77f
Oblate elevation pattern 78f
Oblique curvature asymmetry 78f
Ocular pathologies 106
Ocular surgeries, previous 106
Optical coherence tomographers 8
Optical transfer function 108
P
Pachy apex 30
Parabola 127
Paracentral zone 6
Parameters 46
Peripheral corneal scar 92f
Peripheral scars 10
Peripheral zone 6
Photokeratoscopy 8
Pinhole test 91
Piston 116f
Placido cone 9
Placido disk 8f
Placido mires, reflection of 9f
Point spread function 107
Posterior tangential curvature map 33
Posthyperopic astigmatic ablation pattern 199f
Posthyperopic laser ablations 7f
Postkeratoplasty 206
Postkeratorefractive surgeries 206
Postmydriatic test 94
Power distribution display 98f
Practical subjective
Premium lenses 169
Previous corneal refractive surgeries, diagnosis of 64
Progression, parameters of 184
Pterygium, bilateral 93f
Pupillary axis 3
Pupillary levels 106
Purkinje images 3
Pyramid display 113f
R
Rabinowitz method 41f
Radial keratotomy 148
Reflective aberrometry 106
Reflex, irregular 91
Refractive effect 32
Refractive errors 117
Refractive power map 33
Retina 3
Retinal level 107
Retinoscopy 91
S
Scheimpflug image 99f
Scheimpflug-based technology, principle of 11f
Scleral incisions 220f
Segmental elevation asymmetry 80f
Sight, principle line of 3
Sim-K measurement 8f
Slit-scanning technology, principle of 10f
Spatial thickness profile 145
Spheric lenses 169
Spherical curvature pattern 77f
Spherical elevation pattern 77f
S-shape pattern 71f
Standard deviation 49
Steep and flat semimeridians, significant segmentation of 38f
Sturm interval 84f
Subjective refraction, prediction of 109
Surface ablation 87
T
Thin cornea, normal 174f
Tolerable spherical aberration 137f
Tongue-like extension pattern 80f
Topometric display 160f
Topometric indices 185
Topometry display 159f
Toxic spherical aberration 138f
True corneal astigmatism 219
True net power map 34
True refractive index 32
V
Vertex keratoscope normal 3
Vertical asymmetry, index of 185
Videokeratoscopy, computerized 9
Visual acuity and manifest refraction 186
Visual function and spherical aberration 132
Vortex pattern 44f