PubMed · 15894873
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J P G Bergmanson, James E Walsh, Judith Harmey. 2005. UV Overdose vs Hyperoxia.. https://doi.org/10.1097/01.icl.0000161702.21108.bc
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PURPOSE: To summarize the present status of safety and efficacy of contact lens wear. DESIGN: Literature review. METHODS: Ovid Medline searches were performed on records from 1966 through 2005 using keywords: keratitis, contact lens complications, extended-wear contact lenses, and silicone-hydrogel contact lenses. RESULTS: Patients desire comfort, clarity of vision, and prolonged contact lens wear when contact lenses are used to correct refractive error. Practitioners desire patient satisfaction but also require maintenance of the integrity of the eye and no complications that jeopardize vision or health of the eye. Improvements in the oxygen permeability of the contact lens materials, design of the contact lens and its surface, and solutions for the maintenance of the lens have reduced but not eliminated the risks of infection, inflammation, and conjunctival papillary reaction associated with contact lens wear. The lessons of past and recent history suggest that patient education and practitioner participation in the management of contact lens wear continue to be critical factors for patient satisfaction and safety in the extended wear of contact lenses. CONCLUSIONS: The availability of highly oxygen permeable contact lenses has increased the tolerance and safety of extended contact lens wear, but patient instruction and education in proper use and care of lenses is required and caution is advised.
Today, many options are available for the correction of presbyopia. New technology perpetually surfaces to offer better ideas and designs to meet the visual demands of the presbyopic population. This article provides information on various modalities for spectacle and contact lens correction of presbyopia. It is based on current information at the time of publication and is not intended to be a fitting guide.
PURPOSE: The aim of this study is to review the advances made in understanding the needs of the cornea and the way in which it responds to contact lens wear and corneal implants. METHODS: The review is based on personal knowledge and involvement of the author and colleagues from the 1970s to 2005. RESULTS: Development of silicone hydrogel contact lenses is presented as well as development of synthetic materials for implantation on the corneal surface (corneal onlay). CONCLUSIONS: The future of vision correction involves developing highly porous and biocompatible lens materials. For contact lenses, a better understanding of the effects of contact lens wear on the ocular surfaces, including the tear film, and development of lens materials with greater bacterial resistance are required. For those who require new solutions to permanent vision correction, corneal onlays (implantable contact lenses) are a minimally invasive and totally reversible procedure that can be removed or replaced as visual needs change over time.