Understanding the accommodating intraocular lens
- PMID: 14709287
- DOI: 10.1016/j.jcrs.2003.07.010
Understanding the accommodating intraocular lens
Abstract
Purpose: To review current accommodating intraocular lens (IOL) designs and introduce a new design consisting of a plus lens and a minus lens.
Setting: Cornea Consultants of Boston, Boston, Massachusetts, USA.
Methods: Computer simulation studies of a model eye calculated the pseudoaccommodation range with different powers of 1 IOL or of 2 IOLs acting as a doublet.
Results: The doublet consisting of a convex (plus) lens and a concave (minus) lens gave a greater range of power change than a single convex lens or a doublet consisting of 2 convex lenses. The greater range of power results from the plus lens moving forward.
Conclusion: The results show that an IOL design consisting of positive and negative lenses that move closer or farther from each other offers a greater range of pseudoaccommodation than other designs.
Comment in
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Restoring accommodation to the presbyopic eye: how do we measure success?J Cataract Refract Surg. 2003 Dec;29(12):2251-4. doi: 10.1016/j.jcrs.2003.11.019. J Cataract Refract Surg. 2003. PMID: 14709276 No abstract available.
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Are 3 diopters of accommodation adequate for accommodating IOLs?J Cataract Refract Surg. 2004 Dec;30(12):2457; author reply 2457. doi: 10.1016/j.jcrs.2004.10.014. J Cataract Refract Surg. 2004. PMID: 15617890 No abstract available.
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