Low_resolution_Thesis_CDD_221009_public - Visual Optics and ...

More documents

Recommendations

Info

$XXX Congress of the European Society of Cataract and Refractive ...$

CONCLUSIONS FUTURE RESEARCH LINES The results can establish the basis for future research line directions: 1. In this thesis we have provided the optical and ablation properties of plastic materials for refractive surgery models and extrapolated the results to the cornea. This work opens the path for studies of optical and ablation properties of corneal tissue, including accurate measurement of the physics of the ablation in non-normal surfaces and ejection dynamics. These will provide a better control on the clinical ablative procedures, a needed step in the search for reliable wavefront optimized corrections. 2. Testing of current wavefront guided clinical procedures in vivo and in vitro with the methology developed will lead to improved laser ablation algorithms, and to the design of new wavefront guided strategies. 3. The knowledge gathered on ablation of polymer curved surfaces opens the possibility for the fabrication of contact lenses of complicated designs (i.e. free-form, multifocal) by means of laser ablation. 4. The use of the hybrid porcine plastic corneal models, and of newly validated and calibrated instruments (providing information on both the anterior and posterior corneal surface) opens the possibility for quantitative studies of processes where biomechanical effects are expected to play a role: post-refractive ectasia, assessment of keratoconus, corneal deformations after long term contact lens wearing (corneal warpage) or during Ortho-K treatments with inverse geometry contact lenses, or collagen cross-linking, among others. 5. Application of high resolution anterior segment optical coherence tomography in the study of contact lens fitting will be essential to evaluate the discrepancies between the nominal design and the one measured on eye found in multifocal contact lenses, and the influence of the tear film on the anterior and posterior surface of the contact lens. The instrument should be corrected from fan and optical distortion, and validated for quantitative imaging. 6. The parallel measurements of optical quality and visual performance on the same subjects (in a wide range of conditions and for different subjects) reported in this thesis to evaluate through focus performance, and the associated methodology provide the basis to develop more sophisticated methods of prediction of the visual outcomes, and contribute to the understanding of the limits to spatial vision. These studies will be undertaken with the aid of adaptive-optics, which allow the manipulation of the optical aberrations (correction and simulation of multiple corrections, in particular multifocal designs). 265
CHAPTER 11 5. Multifocality entails a reduction of optical quality. Provided that effective multifocality is achieved with new designs (in terms of optical quality through focus or visual depth of focus), there is still a need for screening methods to detect those patients that cannot adapt to simultaneous vision. New optical methods are needed to provide patients with simulations of the visual experience of simultaneous vision. 266
Page 1:
Doctoral thesis Corneal Ablation an
Page 5 and 6:
Contents Corneal Ablation and Conta
Page 7 and 8:
2.2.1. Fitting surfaces............
Page 9 and 10:
5.3.3. Ablation efficiency factors
Page 11:
10.5. DISCUSSION...................
Page 14 and 15:
We thank José Antonio Sánchez-Gil
Page 16 and 17:
BOZR Back Optic Zone Radius BCVA Be
Page 19 and 20:
INTRODUCTION 1.1. MOTIVATION The fr
Page 21 and 22:
INTRODUCTION 1.2. THE OPTICAL SYSTE
Page 23 and 24:
INTRODUCTION Myopia is a very commo
Page 25 and 26:
INTRODUCTION a point focus: the dif
Page 27 and 28:
INTRODUCTION system, and tilt repre
Page 29 and 30:
INTRODUCTION term Z 0 2 stands for
Page 31 and 32:
INTRODUCTION which image was shadow
Page 33 and 34:
INTRODUCTION The defocus Zernike te
Page 35 and 36:
INTRODUCTION 1.4.6.3. Internal Aber
Page 37 and 38:
INTRODUCTION 1.5.2.3. Alternating v
Page 39 and 40:
INTRODUCTION and further-more, at l
Page 41 and 42:
INTRODUCTION alcohol is used to loo
Page 43 and 44:
INTRODUCTION changes in reflectivit
Page 45 and 46:
INTRODUCTION Marcos et al. (Marcos
Page 47 and 48:
INTRODUCTION 1.7.3. Ablation effici
Page 49 and 50:
INTRODUCTION corneal surface may be
Page 51 and 52:
INTRODUCTION Algorithm design: The
Page 53 and 54:
INTRODUCTION contact lenses the fie
Page 55 and 56:
INTRODUCTION 1.10.1. Tear studies A
Page 57 and 58:
INTRODUCTION there are still many u
Page 59 and 60:
INTRODUCTION 6. Evaluation and unde
Page 61 and 62:
METHODS 2Chapter Chapter 2 - Method
Page 63 and 64:
METHODS 2.1. MEASUREMENT OF OPTICAL
Page 65 and 66:
METHODS In both profilometers, cust
Page 67 and 68:
METHODS The measurement method that
Page 69 and 70:
METHODS Fig. 2. 9. Set of points in
Page 71 and 72:
METHODS Slit lamp Scheimpflug Camer
Page 73 and 74:
METHODS representing the deviation
Page 75 and 76:
METHODS 2.2.2.2. Ablation pattern f
Page 77 and 78:
METHODS direction. These calculatio
Page 79 and 80:
METHODS eye through the whole pupil
Page 81 and 82:
METHODS (1993) power thresholds for
Page 83 and 84:
METHODS alignment (frontal-illumina
Page 85 and 86:
METHODS Fig. 2. 24. Example frame f
Page 87 and 88:
METHODS 4) New image processing too
Page 89 and 90:
METHODS Fig. 2. 28. Corrected entra
Page 91 and 92:
METHODS Badal lens, corresponds to
Page 93:
METHODS Each VA measurement consist
Page 99:
REFRACTIVE SURGERY PMMA MODEL 3.1.
Page 102 and 103:
CHAPTER 3 optimization of refractiv
Page 104 and 105:
CHAPTER 3 These data demonstrate th
Page 106 and 107:
CHAPTER 3 regression line, since it
Page 108 and 109:
CHAPTER 3 Figure 3.3 shows one of t
Page 110 and 111:
CHAPTER 3 Ablation efficiency facto
Page 112 and 113:
CHAPTER 3 considering the same set
Page 114 and 115:
CHAPTER 3 3.5.3 Impact of correctio
Page 117:
ABLATION PROPERTIES OF FILOFOCON A
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133:
Page 137:
OPTIMIZED LASER PLATFORMS 5.1 ABSTR
Page 140 and 141:
CHAPTER 5 pulses. Fluence, repetiti
Page 142 and 143:
CHAPTER 5 ablations. The slit-confo
Page 144 and 145:
CHAPTER 5 (Anera et al., 2003): d S
Page 146 and 147:
CHAPTER 5 asymmetries also appeared
Page 148 and 149:
CHAPTER 5 5.3.4. Ablation patterns
Page 150 and 151:
CHAPTER 5 a) b) : 6.5 mm c) Fig. 5.
Page 152 and 153:
CHAPTER 5 achieve proper reflection
Page 154 and 155:
CHAPTER 5 Both the ablation algorit
Page 157:
HYBRID PORCINE/PLASTIC MODEL 6.1. A
Page 160 and 161:
CHAPTER 6 6.3.1. Hybrid porcine-pla
Page 162 and 163:
CHAPTER 6 is detected. Therefore, i
Page 164 and 165:
CHAPTER 6 no preferential orientati
Page 167:
ANTERIOR AND POSTERIOR CORNEAL ELEV
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183:
183
Page 187:
SOFT CONTACT LENS FITTING USING MOD
Page 191 and 192: SOFT CONTACT LENS FITTING USING MOD
Page 194: ON-EYE OPTICAL PERFORMANCE OF RIGID
Page 198 and 199: ON-EYE OPTICAL PERFORMANCE OF RIGID
Page 212: SOFT MONOFOCAL AND MULTIFOCAL CONTA
Page 216: SOFT MONOFOCAL AND MULTIFOCAL CONTA
Page 220 and 221: CORRELATION BETWEEN RADIUS AND ASPH
Page 230: CONCLUSIONS Conclusions This thesis
Page 233 and 234: CONCLUSIONS 5We have developed a pr
Page 236: CONCLUSIONS LIST OF METHODOLOGICAL
Page 242 and 243: CONCLUSIONS LIST OF PUBLICATIONS AN
Page 244 and 245: REFERENCES References AIZAWA, D., S
Page 246 and 247: REFERENCES PHOTODECOMPOSITION (APD)
Page 248 and 249: REFERENCES DORRONSORO, C., CANO, D.
Page 250 and 251: REFERENCES GISPETS, J., ARJONA, M.
Page 252 and 253: REFERENCES KOPF, M., YI, F., ISKAND
Page 254 and 255: REFERENCES MARCOS, S., DORRONSORO,
Page 256 and 257: REFERENCES NOVO, A., PAVLOPOULOS, G
Page 258 and 259: REFERENCES SAKIMOTO, T., ROSENBLATT
Page 260: REFERENCES WANG, L., DAI, E., KOCH,
Page 263 and 264: RESÚMENES pacientes reales fue com
Page 265 and 266: RESÚMENES experimentales de cirug
Page 267 and 268: RESÚMENES cada punto de las cornea
Page 269 and 270: RESÚMENES plástico medidas anteri
Page 272 and 273: RESÚMENES 8 Evaluación óptica de
Page 274 and 275: RESÚMENES 9 Prestaciones ópticas
Page 276 and 277: RESÚMENES 10 Calidad óptica y cal
Page 278: RESÚMENES A Correlación entre rad
Page 281 and 282: CONCLUSIONES clínicos. La descripc
Page 283 and 284: CONCLUSIONES 12 Las superficies ocu
Page 286: CONCLUSIONES IMPLICACIONES DE ESTA
Page 289 and 290:
CONCLUSIONES contribuyen a la compr
Page 291:
(y muchísimo más difícil). Me da
show all

Low_resolution_Thesis_CDD_221009_public - Visual Optics and ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?