An Outline of Ophthalmology by Roger L. Coakes and Patrick J. Holmes Sellors (Auth.)

By Roger L. Coakes and Patrick J. Holmes Sellors (Auth.)

This version has been revised and up to date and is in color and in a brand new structure. The booklet nonetheless allows the scholar or practicing health care provider to deal with daily ophthalmic difficulties, in addition to spotting these medical occasions which require professional consciousness. It offers a concise account of recent ophthalmology. uncomplicated anatomy and body structure are lined besides the ailments of the attention, defined symptom through symptom instead of by way of the standard systematic technique. the attention in systemic illness, ophthalmic investigations and remedy, and customary misconceptions also are mentioned. All illustrations look without delay contrary the suitable textual content

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Visual field loss 3. Optic atrophy Causes (see also Chapter 27) 1. Chiasmal compression, particularly from pituitary tumours and meningiomas. 2. Nutritional amblyopia. This condition is usually related to heavy drinking and/or smoking and is often referred to as tobacco-alcohol amblyopia. A diet poor in vitamin B complex is a contributary factor. There is bilateral loss of central vision and visual acuity may be less than 6/60. Examination of the visual fields reveals central scotomata which encompass the blind spot and fixation (centro-caecal).

Occasionally, psychiatric assessment is required but patients often exchange this problem for another. Blindness In order to be registered as blind in the United Kingdom a person must be 'so blind as to be unable to perform any work for which eyesight is essential'. In practice a person with visual acuity below 3/60 is regarded as blind but a person with normal acuity and severe contraction of the visual fields may also be eligible for registration. Individuals with poor sight who do not qualify as blind may be registered as 'partially sighted'.

The use of topical steroids in the treatment of other types of viral keratitis may be necessary but requires specialist supervision. Fungal Fungal keratitis is relatively uncommon. The clinical picture is similar to that produced by bacteria but the progress of the disease is usually less dramatic and 'satellite' lesions may develop as the fungal hyphae spread through the corneal stroma. Hypopyon formation is common. g. fluorocytosine. Candida albicans and aspergillus species are the commonest causes of fungal keratitis.

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