Tinted Lenses

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Tinted Lenses

Introduction Eye colour is universally recognized as an important and defining natural physical characteristic of the body human, and a contact lens is an effective vehicle for modifying or enhancing…

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Preliminary Examination

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Preliminary Examination

Introduction The preliminary examination includes the taking of a full history and initial patient assessment (see Chapter 33 ), ocular measurements, refraction, slit-lamp biomicroscopy and additional tests. The examination enables…

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Babies and Children

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Babies and Children

Introduction The contact lens practitioner is a key member of a multidisciplinary team involving paediatric ophthalmologists, optometrists and orthoptists concerned with ocular health and visual development of the child. Fitting…

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Orthokeratology

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Orthokeratology

Introduction Rather than using contact lenses to add a new refracting surface to the eye to correct ametropia, in orthokeratology (OK), specially designed rigid contact lenses are instead used to…

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Keratoconus

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Keratoconus

Introduction Congenital or developmental abnormalities of corneal topography include primary corneal ectasias, such as keratoconus and keratoglobus, and cornea plana ( Fig. 25.1 ). These atypical corneal shapes provide significant…

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Practice Management

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Practice Management

Introduction Contact lens practice resides within a general eye care practice embracing the prescribing, fitting, dispensing and long-term management of contact lens-wearing patients. Thus practice management issues that have an…

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Diabetes

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Diabetes

Introduction Diabetes mellitus is one of the most common systemic diseases in the world and it occurs when the pancreas does not produce enough insulin or when the body cannot…

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Rigid Corneal Lens Design and Fitting

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Rigid Corneal Lens Design and Fitting

Introduction Fitting rigid corneal lenses is an improbable achievement. Essentially, it involves constructing a complex three-dimensional structure to sit, without the aid of any supplementary adhesive, on a vertically inclined…

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Myopia Control

Aug 6, 2023 by in OPHTHALMOLOGY Comments Off on Myopia Control

Introduction Myopia is a commonly seen condition and is the most important cause of distance vision impairment. Data from many East Asian countries show a consistent rise in the prevalence…

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