AIM: To study the effects of phacoemulsification(Phaco)combined with different types of intraocular lens implantation(IOL)on age-related cataract.

METHODS: A retrospective study was performed on 105 elderly patients with age-related cataract who were treated with surgery in our hospital, and they were divided into group A(35 cases, 51 affected eyes), group B(35 cases, 49 affected eyes)and group C(35 cases, 52 affected eyes). All subjects were treated by IOL+Phaco, and types of IOL in the three groups were three-piece and single-piece Natural and Rayner. The preoperative and postoperative biological measurement indexes and postoperative complications were compared among the three groups.

RESULTS: At 3mo after surgery, the intraocular pressure(IOP)in three groups was significantly decreased(P<0.05)while the angle opening distance(AOD500), trabecular iris angle(TIA500), central anterior chamber depth(ACD), trabecular-ciliary processes distance(TCPD), each quadrant angle, uncorrected visual acuity and best corrected visual acuity(BCVA)were significantly increased(P<0.05). The ACD and TIA500 in group A were significantly higher than those in groups B and C(P<0.05),and there were no significant differences in the uncorrected visual acuity, BCVA and other biological measurement indexes among the three groups(P>0.05). There were significant differences in vertical shift and horizontal shift of intraocular lens among the three groups at 1mo and 3mo after surgery(P<0.05), and the vertical shift and horizontal shift of intraocular lens at 1mo and 3mo after surgery in group A were lower than those in groups B and C(P<0.05), and there were no significant differences in vertical shift and horizontal shift between group B and group C(P>0.05).The incidence rate of posterior capsule wrinkle in group A after surgery was obviously higher than that in group B and group C(P<0.05).

CONCLUSION: The intraocular stability and safety of Phaco+single-piece IOL are better than those of Phaco+ three-piece IOL, but Phaco+ three-piece IOL has deeper ACD after surgery and can prevent the forward shift of IOL, and they have their own advantages and disadvantages.