Eye & contact lens
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Myopia has gained increasing interest in recent years, particularly because of its increase in prevalence across populations worldwide. The onset of myopia has shifted to a younger age, and the number of high myopes with prescriptions of more than -5.00 D has increased over the last few decades. High myopia is strongly associated with a greater incidence of pathologic complications, has shown to impact vision-related quality of life in children and adults and is further associated with certain contact lens complications. Different pharmaceutical and optical treatment options are currently under investigation with a common goal to slow down the rate of myopia progression.
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To report a case of spontaneous corneal perforation after radiotherapy connected with long-term use of topical 0.1% diclofenac sodium. ⋯ Use of long-term diclofenac sodium for dry eye after radiotherapy was possibly responsible for the spontaneous corneal perforation in our patient. It should always be borne in mind that topical diclofenac sodium should be used with caution in patients with compromised ocular surface.
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To review the effects of contact lenses on the corneal surface. ⋯ Sodium fluorescein dye effectively highlights corneal integrity changes referred to as corneal staining. This review describes the manifestations, the cause, the mechanisms, and the methods of remediation of corneal staining.
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To report an unusual case of contact lens-associated pseudomonal keratitis in a compliant daily disposable contact lens wearer. ⋯ Although extremely rare, pseudomonal keratitis should still be considered in the differential diagnosis of severe keratitis in daily disposable contact lens wearers. Given the history of a previous contact lens-related bacterial keratitis in this compliant patient, it is possible that host susceptibility factors played a role in the case of pseudomonal keratitis described here.
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Review Comparative Study
Contact lens and lens storage case cleaning instructions: whose advice should we follow?
To identify and compare the current contact lens and lens storage case hygiene recommendations amongst three different advisory sources: manufacturers of contact lens disinfecting solutions, the Food and Drug Administration of USA, and optometrists prescribing contact lenses in New South Wales, Australia. ⋯ Inconsistent and inadequate contact lens and lens case hygiene recommendations remain prevalent amongst various advisory bodies (industry, regulatory authority, and optometrists). Future research is needed to establish evidence-based contact lens hygiene guidelines.