Description
Elsevier Science Theory And Practice Of Optics & Refraction, 2/E by Khurana
The study of refraction is vital to those in the ophthalmic field. They apply it in determining the refractive error in human eyes. This helps them to prescribe corrective lenses or corrective surgery. As this book is meant for the application of the principles of refraction, it cuts down on detailed theory and mathematical formulas. The book thoroughly covers the methods of determining the causes of defective visions and on ways to counter or correct the defect. It also provides an overview of the optical instruments and procedures that are used to diagnose errors in vision. The book begins by covering the basics of Light and Optics. It then covers Visual Acuity, tests for Potential Vision, and Contrast Sensitivity. The book also looks at Errors of Refraction and Determination of Errors of Refraction. It explains the causes of Asthenopia.Theory and Practice of Optics and Refraction also discusses Corneal Topography or methods of non-invasive analysis corneal surface curvature. It also goes into Keratometry and Aberrometry. The book then focuses on all aspects of Spectacles as corrective instruments for eye defects. It covers the frames and the lens, and goes into Centration, Glazing and Verification of Spectacles. The book also contains a detailed coverage of Contact Lenses. It goes into the manufacturing aspects of contact lenses. It looks at the interaction of the contact lenses with the tear films which protect the cornea. It also explains the Optics of Contact Lenses. It discusses the Indications and Contraindications of using contact lenses. It also describes the different types of contact lenses.