Secondary intraocular lens implantation: anterior chamber vs posterior chamber lenses.
We retrospectively studied 348 cases of secondary lens implantation, comparing data obtained from 234 eyes that received anterior chamber intraocular lenses (AC-IOLs) with 114 that received posterior chamber lenses (PC-IOLs), with a mean follow up of 19.5 months (range, 2 to 77 months). Visual acuity was similar in these two groups both before (P = .278) and after surgery (P = .771). Overall, 83% of the eyes had a postoperative acuity of 20/40 or better. In the eyes without preexisting pathology, 93% of those with AC-IOLs and 91% of those with PC-IOLs had this level of postoperative acuity. The incidence of complications in these two groups did not differ significantly. Our study suggests that one-piece flexible open-loop AC-IOLs pose no greater threat than PC-IOLs with respect to visual outcome in secondary implantation. Careful preoperative evaluation of the cornea, retina, and vitreous face will allow selection of the optimum lens style.
Lyle
W A
WA
Eye Institute of Utah, Salt Lake City 84107.
Jin
J C
JC
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000867:Anterior Chamber / Q000601:surgery*; D002387:Cataract Extraction; D005128:Eye Diseases / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011474:Prosthesis Design; D012086:Reoperation; D012189:Retrospective Studies; D014792:Visual Acuity