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  • Title: Ten-year follow up comparing anterior and posterior chamber intraocular lens implants.
    Author: Downing JE.
    Journal: Ophthalmic Surg; 1992 May; 23(5):308-15. PubMed ID: 1603529.
    Abstract:
    Results achieved in eyes following a single surgeon's first 200 procedures consisting of intracapsular cataract extraction and implantation of a Choyce-Tennant anterior chamber lens (AC-IOL) (1977 to 1980) are compared with those achieved following the same surgeon's first 200 procedures consisting of extracapsular cataract extraction and implantation of a posterior chamber intraocular lens (PC-IOL) (1980 to 1982). For the AC-IOL eyes, follow up ranged from 11.1 to 14.2 years (mean, 12.0 years); for the PC-IOL eyes, from 9.5 to 10.8 years (mean, 10.0 years). The AC-IOL eyes had many early problems: pupillary block (7%), iritis (15%), and secondary glaucoma (8%). Four percent developed corneal edema, 1.5% vitritis, and 2% localized iris holes under the lens. Ectropion uveae appeared in 8.5%, indicating some ongoing inflammation. One and one-half percent of these lenses were removed or exchanged. Seventy-nine and one-half percent of these eyes had 20/40 or better vision at 10 years; 4% had visual loss along with corneal edema or vitritis, apparently related to the AC-IOLs. The PC-IOL eyes had comparatively few lens-related complications: 1% corneal edema, 1.5% iritis, 1% vitritis, and 2% secondary glaucoma. Some localized trapping of the pupil occurred in 8%. One percent of the PC-IOLs were removed, and 1% decentered, requiring McCannell sutures. Final visual acuity at 10 years was 20/40 or better in 77.5%. None of the PC-IOL eyes had decreased vision related to the lens implant.
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