Corneal Sensitivity: Measurement and Clinical Importance

by Jörg Draeger, F.C. Blodi

Overview

The sensitivity of the cornea elicits one of the most defense reflexes of the human body. Now modern microprocessor technology has succeeded in developing a highly sensitive apparatus for quick and quantitatively reproducible measurement of corneal sensitivity. Some of the many topics concerned are: differential diagnosis and control of thecourse of herpetic diseases of the cornea;
reinnervation following surgical intervention in the anterior section of the eye; effects of various beta-blockers on the cornea; basic questions of tolerance and adaptive quality of contact lenses; and the dimensions of damage caused by glaucoma, elucidated by the direct correlation between disturbed sensitivityand stage of the glaucoma.

Product Details

ISBN-13:	9783709187470
Publisher:	Springer Vienna
Publication date:	12/31/2011
Edition description:	Softcover reprint of the original 1st ed. 1984
Pages:	158
Product dimensions:	5.98(w) x 9.02(h) x 0.01(d)

Table of Contents

1. Introduction.- 2. Anatomy and Physiology of the Cornea.- 2.1 Anatomy.- 2.1.1 The Layers of the Cornea.- 2.1.2 Innervation of the Cornea.- 2.2 Corneal Sensitivity.- 3. Development of the Various Methods of Esthesiometry.- 3.1 Early Investigations.- 3.2 Newer Attempts for a Technical Solution.- 3.2.1 The Application of Modern Technology.- 3.3 Electronic-Optic Esthesiometer.- 3.3.1 Producing and Measuring the Stimulus Force.- 3.3.2 The Optical Device for the Observation.- 3.3.3 The Use of the Instrument.- 3.3.4 Technical Data of the Esthesiometer.- 4. How to Use the Esthesiometer.- 5. Comparison Between Static and Dynamic Esthesiometry.- 6. Topography of Corneal Sensitivity.- 7. The Receptor Field of Corneal Sensitivity.- 8. Stimulus-Sensation — Relationship in the Cornea.- 8.1 Results.- 8.1.1 Quality of Sensation.- 8.1.2 Graduation of Sensation.- 8.2 Discussion.- 9. The Sensitivity of the Conjunctiva.- 10. The Localization of a Stimulus on Cornea and Conjunctiva.- 11. The Lid Reflex as an Indicator of Corneal and Conjunctival Sensitivity.- 12. The Age Dependency of the Corneal Sensitivity.- 13. Metabolie Influences on the Corneal Sensitivity.- 13.1 Corneal Sensitivity in Patients with Diabetes mellitus.- 13.2 Corneal Sensitivity After Light Coagulation.- 13.3 Changes in Corneal Sensitivity Düring Pregnancy.- 14. The Effect of Surface Anesthetics.- 14.1 Discussion of Our Results.- 15. Local Anesthetic Effects of Beta Blockers.- 15.1 Methodology.- 15.2 Results.- 15.3 Discussion.- 16. Examinations on Pharmacogenetics.- 17. The Influence of Contact Lenses on Corneal Sensitivity.- 17.1 Retrospective Study.- 17.1.1 PMMA Contact Lenses.- 17.1.2 HEMA Contact Lenses.- 17.2 Prospective Study.- 17.2.1 PMMA Contact Lenses.- 17.2.2 HEMA Contact Lenses.- 18. Corneal Sensitivity as an Indicator for the Reinnervation of the Cornea After a Cataract Incision or After a Perforating Keratoplasty.- 18.1 Corneal Sensitivity After Cataract Extraction.- 18.2 Corneal Sensitivity After Penetrating Keratoplasty.- 18.3 Comparison Between Fresh and Stored Donor Corneas.- 18.4 Reinnervation After Keratoplasty with HLA-Typed Donor Material.- 19. The Influence of the Type of Anesthesia on Corneal Sensitivity.- 20. Corneal Sensitivity After a Bückling or Encircling Operation for a Retinal Detachment.- 21. Corneal Sensitivity and Intraocular Pressure.- 22. Differential Diagnosis and Monitoring of Herpetic Keratitis.- 23. Corneal Sensitivity After Trigeminal Block.- 23.1 Discussion.- 24. Conclusion.- References.