Ophthalmology: Current and Future Developments

Ophthalmology: Current and Future Developments

Volume: 4

Contemporary Scleral Lenses: Theory and Application

Contemporary Scleral Lenses: Theory and Application, provides comprehensive information about scleral lenses. Chapters of this volume have been contributed by renowned scleral lens experts and cover ...
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Scleral Lenses for the Regular / Normal / Non- Diseased Cornea

Pp. 130-156 (27)

Langis Michaud

Abstract

A regular/normal/non-diseased cornea is characterized by a prolate surface, with no indices of irregularity, warpage or distortion. For consistency, the term regular cornea will be used in this text. Anterior corneal surface elevation and posterior corneal surface elevation of a regular cornea which do not exhibit ectasia or irregularities of either surface. These patients present with common refractive errors: myopia, regular astigmatism, hyperopia and presbyopia. Prescribing scleral lenses for patients with regular corneas or switching patients from other modalities to scleral lenses is very feasible. First, practitioners determine the need, which is improving vision and/or comfort. Scleral lenses can significantly enhance the lens wearing experience of regular cornea patients, especially in astigmatic, presbyopic or marginal dry eye patient populations. For regular cornea patients and the correction of common refractive errors, the risk-to-benefit ratio needs to be evaluated and an appropriate lens selected. In conclusion, scleral lenses are becoming part of practitioners’ standard armamentarium to improve the contact lens experience of their patients.

Keywords:

Astigmatism, Comfort, Convenience, Ease, Environment, Handling, Healthy, HOA, Multifocal, Non-distorted, Normal, Optics, Options, Physiological, Presbyopia, Prolate, Refractive surgery, Regular, Sports, Visual acuity.

Affiliation:

Ecole d'Optometrie, de l'Universite de Montreal, Quebec, Canada