Effect of Lens Capsular Tension Ring on Preventing Capsular Contraction
Syndrome in the Surgery of Retinitis Pigmentosa Combined with Cataract:
Retrospective Case Series
Abstract
PURPOSE: To observe the effect of phacoemulsification and intraocular
lens (IOL) implantation with or without lens capsular tension ring (CTR)
on retinitis pigmentosa (RP) combined with cataract patients. DESIGN:
Retrospective case series study. METHODS: 63 cases (84 eyes) of RP with
cataract were collected, including 30 males and 33 females.
Phacoemulsification with 3.0 mm clear corneal incision was performed in
all the patients. IOL and CTR implantation was performed in 44 eyes, and
IOL implantation alone was performed in 40 eyes. All cases were followed
up at 1 week and 1, 3, 6 months after the surgery to compare the best
corrected visual acuity (BCVA), intraocular pressure (IOP), corneal
endothelial cell count (ECC) and complications before and after the
surgery. RESULTS: All surgeries were successfully completed by the same
physician, and IOL and CTR were all implanted in capsule without
complications. The BCVA at 6 months after surgery was 0.91±0.88 LogMAR.
It improved a little compared with the BCVA(1.3±0.7LogMAR) before
surgery and there was statistically significant difference (P=0.003).
Four cases of capsule contraction syndrome (CCS) occurred in no CTR
implantation group and there was no CCS in CTR group. There was
statistically significant difference in the incidence of CCS between two
groups(P=0.047). CONCLUSIONS: Phacoemulsification for RP combined with
cataract is safe and reliable, and CTR implantation is helpful in
reducing the complications caused by capsule contraction