DESCRIPTION:
Completely up-to-date and brimming with sound practical advice Clinical Optics and Refraction is an essential resource for anyone involved in eyecare - students, optometrists, dispensing opticians and contact lens opticians.
Clinical Optics and Refraction provides a comprehensive and clinically based guide to visual optics. With its suggested routines and numerous examples, this new book offers a straightforward "how to approach" to the understanding of clinical optics, refraction and contact lens optics.
Designed for easy access, it presents information in a concise format that highlights key, need-to-know points.
Part 1 addresses the basic visual optics of the eye along with emmetropia, ametropia and the correction of ametropia with spectacle lenses. Part 2 turns to the optics of contact lenses and the use of contact lenses in vision correction.
Key Features:
- Numerous worked examples based on real examination questions
- Practical and user friendly text
- Over 190 clear line diagrams
- An essential passport to examination success and a valuable quick reference for practitioners
CONTENTS:
Part 1. Background Optical Principles
1. Schematic Eyes, Emmetropia and Ametropia
2. Emmetropia and Ametropia
3. The Correction of Spherical Ametropia
4. The Basic terinal Image
5. Spectacle Magnification and the Corrected Retinal Image
6. Astigmatism
7. Retinoscopy
8. Visual Acuity and the Measurement of Visual Function
9. Subjective Refraction: Principles and Techniques for the Correction of Spherical Ametropia
10. Subjective Refraction: Principles and Techniques for the Correction of Astigmatic Ametropia
11. Binocular Balancing and Binoculer Refraction
12. Accommodation and Presbyopia
13. Determination of the Near Addition
14. Convergence
15. Automated Methods of Refraction
Part 2. The Correction of Refractive Errors Using Contact Lenses
16. Measurement of the Cornea: The Keratometer and Beyond
17. Ray-tracing Through RGP Contact Lenses and Contact Lens-Tear Lens Systems
18. Spectacle Magnification and Relative Spectacle Magnification
19. Contact Lens Materials: Physical and Optical Properties
20. The Correction of Astigmatism with Rigid Gas Permeable Contact Lenses
21. The Correction of Astigmatism with Soft Contact Lenses
22. Ray-tracing Through Soft Contact Lenses and Soft Contact Lens Hydration Factors
23. The Correction of Presbyopia with Contact Lenses
24. Over-refraction Techniques in Contact Lens Practice
25. Accommodation and Convergence: Spectacles vs Contact Lenses
26. Accommodation and Convergence: Spectacles versus Contact Lenses
27. The Axial and Radial Edge Thicknesses of a Contact Lens
28. Contact Lens Verification
29. Binoculer Vision: The Basics
30. Binocular Vision Considerations in Contact Lens Practice
