By Peng T. Khaw, Peter Shah, Andrew R. Elkington

Within the 3 years because the third version a lot has replaced within the remedy of eye stipulations. Glaucoma and macular degeneration, laser therapy in comparison with surgical procedure, tips to take care of refractive mistakes - these kind of might be defined intimately and illustrated with newly commissioned drawings and pictures.

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Extra info for ABC of Eyes 4th Edition (ABC Series)

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Stye Papilloma Papillomas are often pedunculated and multilobular. They are common and may be caused by viruses. They should be removed if they are large and the diagnosis is uncertain, or if they are disfiguring. Cyst of sweat secreting gland (cyst of Moll) 21 ABC of Eyes Xanthelasma Xanthelasmas may be an incidental finding, or the patient may complain of yellow plaques on the nasal sides of the eyelids; these contain lipid. Associated hyperlipidaemia must be excluded and the lesions may be removed under local anaesthesia if they are a cosmetic problem.

Left ptosis caused by pupil sparing third nerve palsy: note the divergent eye Nerve supply A third nerve palsy may present as a ptosis. This, together with an abducted eye and dilated pupil, indicates the diagnosis. The patient should be referred urgently, as causes of third nerve palsy include a compressive lesion of the third nerve such as an aneurysm. Diabetes should be excluded. Horner’s syndrome resulting from damage to the sympathetic chain The pupil will be small but reactive, and sweating over the affected side of the face may be reduced.

The patient may have a history of intermittent discomfort followed by watering of the eye. 26 Normal tear flow Eyelid, orbital, and lacrimal disorders Punctal malposition secondary to lid malposition The punctum must be well apposed to the eye to drain tears. Even mild ectropion can result in pooling of tears and overflow. Careful examination of the lid will usually show any malposition, which may be remedied by performing a minor operation. Punctal stenosis The punctum may close up and this will result in watering.

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