Clinical observation of trypan blue marker technology in ciliary sulcus sutured fixation of intraocular lens surgery

Abstract

Objective To evaluate the effectiveness of trypan blue marker technology in ciliary sulcus sutured fixation of intraocular lens (IOL) surgery for clinical application.Methods Non-capsular support aphakia 37 cases (37 eyes) accepted the ciliary sulcus sutured intraocular lens implantation with application of trypan blue marker technology.The IOL optical center were marked and used as location guiders.Location guiders maintained the IOL center and Cornea center on the same axis under the surgery microscope.Intermediacy of IOL optical center was observed postoperatively through photographic analysis of slit lamp microscope.The preoperative best corrected visual acuity (BCVA),postoperative uncorrected visual acuity (UCVA) at 1 day,3 months,6 months were observed.Related techniques and clinical results were discussed.The follow-up period was 6 months.Results All IOL optical center obtained satisfied intermediacy,maintained the same axis with the cornea center,no deviation occurred.UCVA at postoperative day 1 was significantly improved from preoperative 0.05±0.03 up to 0.44±0.19 (t=4.63,P=0.0017),46％ above 0.5; There was no significant difference between preoperative BCVA (0.51±0.10) and UCVA (0.56±0.19) at 3 months postoperatively (t =1.51,P=0.16).Conclusions Trypan blue marker technology can help surgeon find the IOL deviation timely and correct precisely which can conductively maintain the advantage of ciliary sulcus sutured fixation of intraocular lens surgery. Key words: Trypan blue; Aphakia; Ciliary sulcus; Suture fixation; Foldable intraocular lens