This chapter is an introduction into the field of Refractive Corneal Surgery. It starts off with the definition and purpose of Refractive Surgery, then the nature of Refractive Surgery is discussed briefly. Requirements from system theory will give a first set of criteria to estimate surgical techniques. After surgical terms are defined a new classification for refractive techniques is developed to improve better understanding. The history and the development of Refractive Surgery is outlined. The LASIK procedure, being today's most promising refractive surgical technique, is discussed and compared with other refractive techniques. An overview about the US market and the German market end this chapter. | | | |
| 2 REFRACTIVE CORNEAL SURGERY 8
2.1 DEFINITION AND PURPOSE 8
2.2 NATURE OF REFRACTIVE CORNEAL SURGERY 9
2.2.1 Vision Concept 9
2.2.2 The Cornea 10
2.2.3 Shaping Ideas 10
2.3 SYSTEM THEORY 12
2.3.1 Stability 12
2.3.2 Deviation from Target 12
2.3.3 Behaviour in Transitional Phase 12
2.3.4 Robustness 12
2.4 CLASSIFICATION OF TECHNIQUES 13
2.4.1 Surgical Terms Following Waring's Classification 13
2.4.2 Classification Following the Intention of Change 15
2.5 HISTORY AND DEVELOPMENT 16
2.5.1 The Keratotomy Experience 16
2.5.2 The Early Keratomileusis Experience 17
2.5.3 The Photorefractive Experience 20 | | | | |
|
> Refractive Surgery
