Intraocular lens implantation for patients with coloboma of the iris

Abstract

Objective To investigate the clinical therapeutic effects of intraocular lens implantation for patients with coloboma of the iris.Methods Fifty-six patients (63 eyes) with iris defects were reviewed.For patients with a small range of iris defects and intact capsular bag,the iris can be sutured and an intracapsular lens can be implanted; for patients with serious damage to the iris and capsular bag defect,the iris can be sutured and an anterior chamber lens can be implanted; for patients with extensive iris defect and intact capsular bag, an artificial iris combined with an intraocular lens can be implanted in the capsular bag; for patients with a wide range of iris and capsular bag defects, an intraocular lens combined with an iris can be implanted.Patients were followed up from 5 months to 5 years to monitor visual acuity,sensitivity to light,intraocular lens position and postoperative complications and treatment.Results Except amblyopia and severe corneal scarring,most patients visual acuity improved.Eleven patients accepted the surgery of iris sutured and an intracapsular lens implanted,＜0.1 in 2 cases,0.1-0.4 in 5 cases,0.5-0.8 in 2 cases,＞0.8 in 1 case,the other 3 cases of patients was unchanged due to congenital amblyopia.Six patients accepted the surgery of iris sutured and an anterior chamber lens implanted,visual acuity improved to 0.1-0.4 in 4 cases, 0.6 in 2 case.Twelve patients accepted the surgery of an intraocular lens combined with an iris implanted,among them,4 cases with congenital cataract was unchanged due to amblyopia,visual acuity improved to 0.1--0.4 in 2 cases,0.5--0.8 in 5 cases,＞0.8 in 1 case of the other 8 cases.Twenty-seven patients accepted the surgery of an intraocular lens combined with an iris implanted,count finger-0.1 in 5 cases,0.1-0.4 in 14 cases,0.5-0.8 in 8 cases.No photophobia phenomenon was observed.Patient satisfaction and comfort were good.Early complications included hyphema,high intraocular pressure,and uveitis.Corneal decompensation,intraocular lens dislocation or other serious complications were not observed.Conclusion Different techniques for intraocular lens implantation can improve visual acuity and photophobia depending on the condition of the iris and capsular bag. Key words: Iris defect; Lenses,intraocular; Surgical procedures,operative