Thoroughly revised and updated, this popular book provides a comprehensive yet easy to read guide to modern contact lens practice. Beautifully re-designed in a clean, contemporary layout, this second edition presents relevant and up-to-date information in a systematic manner, with a logical flow of subject matter from front to back.

This book wonderfully captures the ‘middle ground’ in the contact lens field … somewhere between a dense research-based tome and a basic fitting guide. As such, it is ideally suited for both students and general eye care practitioners who require a practical, accessible and uncluttered account of the contact lens field.

Contributing authors vii
Tribute xi
Preface xiii
Acknowledgements xv
Part I Introduction 1
1 Historical perspective 3
2 The anterior eye 11
3 Visual optics 36
4 Clinical instruments 52
Part II Soft contact lenses 69
5 Soft lens materials 71
6 Soft lens manufacture 85
7 Soft lens optics 94
8 Soft lens measurement 100
9 Soft lens design and fitting 111
10 Soft toric lens design and fitting 123
11 Soft lens care systems 133
Part III Rigid contact lenses 151
12 Rigid lens materials 153
13 Rigid lens manufacture 163
14 Rigid lens optics 171
15 Rigid lens measurement 177
16 Rigid lens design and fitting 186
17 Rigid toric lens design and fitting 203
18 Rigid lens care systems 212
Part IV Lens replacement modalities 215
19 Unplanned lens replacement 217
20 Planned soft lens replacement 225
21 Planned rigid lens replacement 237
Part V Special lenses and fitting considerations 243
22 Scleral lenses 245
23 Tinted lenses 253
24 Presbyopia 261
25 Continuous wear 275
26 Sport 295
27 Keratoconus 301
28 High ametropia 313
29 Paediatric fitting 317
30 Therapeutic applications 325
31 Post-refractive surgery 332
32 Post-keratoplasty 338
33 Orthokeratology 346
34 Diabetes 353
Part VI Patient examination and management 359
35 History taking 361
36 Preliminary examination 367
37 Patient education 376
38 Aftercare 385
39 Complications 405
40 Digital imaging 438
41 Compliance 449
42 Practice management 455
Appendices 465
A Contact lens design and specifications 466
B Contact lens tolerances 468
C Vertex distance correction 470
D Corneal curvature - corneal power conversion 472
E Extended keratometer range conversion 474
F Soft lens average thickness 477
G Soft lens oxygen performance 478
H Constant edge clearance rigid lens designs 480
I Soft toric lens misalignment demonstrator 483
J Dry eye questionnaire 484
K Efron grading scales for contact lens complications 487
Index 491