The effect of vitreou preentation during extracapular cataract urgery on the potoperative viual acuity at one year

Purpoe The purpoe of thi tudy wa to determine the effect that vitreou preentation (VP) during extracapular cataract urgery ha on patientʹ 1-year potoperative viion. Deign The tudy wa a propective, long-term, clinical trial. Method The tudy took place at 19 Department of Veteran Affair medical center. Patient having VP during cataract urgery and receiving a poterior chamber (PC) intraocular len (IOL) (230 patient) were propectively compared with a 5% random ample of nonvitreou preentation (NVP) cataract urgery patient (521 patient). Bet-corrected viual acuity (BCVA) at 1 year wa obtained by a maked, certified examiner. Reult There wa no tatitical difference (P = .089) between the VP patient receiving PC IOL and the NVP patient in percentage of patient having BCVA of 20/40 or better at 1 year (91.1% v 94.9%). There were ignificantly more PC IOL VP patient than NVP patient with BCVA of 20/50 or wore at ome time during the firt potoperative year (21.6% v 10.9%; P = .0003), ignificantly fewer with BCVA of 20/20 or better at 1 year (27.8% v 38.8%; P = .013), and ignificantly more with cytoid macular edema (11.5% v 3.6%; P = .0002), retinal detachment (4.3% v 0.2%; P = .0002), and uveiti (3.4% v 0.6%; P = .012). The NVP patient rated their viion a very good or excellent ignificantly more often than the VP patient (71% v 58%; P = .025). Concluion Vitreou preentation during extracapular cataract urgery lead to omewhat wore overall outcome in patient, although the majority of patient with VP do reaonably well.