By Peng T. Khaw, Peter Shah, Andrew R. Elkington
Within the 3 years because the third variation a lot has replaced within the remedy of eye stipulations. Glaucoma and macular degeneration, laser remedy in comparison with surgical procedure, tips to care for refractive mistakes - most of these may be defined intimately and illustrated with newly commissioned drawings and images.
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Additional info for ABC of Eyes 4th Edition (ABC Series)
Management—Conventional treatment with analgesics and antiemetics may be necessary. Long term prophylaxis may be required if attacks occur often. 39 7 Gradual visual disturbance, partial sight, and “blindness” Causes of gradual visual loss Retinal degeneration Refractive errors The pinhole test is a most useful test for identifying refractive errors. If there is a refractive error, the vision will improve when the pinhole is used. A patient with thick glasses should wear them for the pinhole test.
Schirmer’s test 28 5 Injuries to the eye An injury to the eye or its surrounding tissues is the most common cause for attendance at an eye hospital emergency department. Abnormal eye movements: always refer Basal tear of iris always refer History The history of how the injury was sustained is crucial, as it gives clues as to what to look for during the examination. If there is a history of any high velocity injury (particularly a hammer and chisel injury) or if glass was involved in the injury, then a penetrating injury must be strongly suspected and excluded.
Local anaesthetic may need to be used to obtain a good view, and fluorescein must be used to ensure no abrasions are missed. Marginal laceration: always refer Foreign body Distorted pupil: beware penetrating injury Deep laceration of orbit: beware intraorbital and intraocular penetration and retained foreign bodies Hyphaema: always refer Epithelial loss—may be missed without fluorescein Subconjunctional haemorrhage: if it tracks posteriorly beware orbital fracture The injured eye Common types of eye injury ● ● ● ● ● ● Corneal abrasions Foreign bodies Radiation damage Chemical damage Blunt injuries with hyphaema Penetrating injuries Corneal abrasions Corneal abrasions are the most common result of blunt injury.
ABC of Eyes 4th Edition (ABC Series) by Peng T. Khaw, Peter Shah, Andrew R. Elkington