Effect of Lens Capsular Tension Ring on Preventing Capsular Contraction
Syndrome in the Surgery of Retinitis Pigmentosa Combined with Cataract:
Retrospective Case Series
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 cases series study. METHODS: 63cases (84 eyes) of RP with
cataract were collected including 30 males and 33 females.
Phacoemulsification with 3.0mm clear corneal incision was performed in
all the patients. IOL+CTR implantation was performed in 44 eyes, and
only IOL implantation 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 and complications before and after the surgery.
RESULTS: all surgery 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 a signifcant difference in statistic(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 signifcant difference in
statistic about 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 to reduce the
complications caused by capsule contraction.