Effect of Lens Capsular Tension Ring on Preventing Capsular Contraction Syndrome in the Surgery of Retinitis Pigmentosa Combined with Cataract: Retrospective Case Series
Chang Xi ChenJin Da WangJing Shang ZhangYing XiongJing LiShu Ying ChenZhen Yu LiuXiu SunMayinuer YusufuXiu Hua Wan
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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.Objective: To explore the safety and availability of diabetic cataract with phacoemulsification and intraocular lens implantation. Method: 132 eyes of 112 patients who had diabetic cataract were performed phacoemulsification and lens implantation. Results: All the surgeries completed successfully. Most of complications after surgery were inflammation in anterior chamber and that could be cured through drug treatment. There was no serious complications during surgery.Conclusion: The visual acuity has no difference between the non-diabetic cataract patients and the control group if enough preparations for surgery are completed. The phacoemulsification and intraoculr lens implantation is an effect and reliable method to cure diabetic cataract.
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Objective To compare small incision non-phacoemulsification cataract extraction combined with IOL implantation with phacoemulsification combined with IOL implantation on visual acuity,corneal astigmatism and complications postoperatively. Methods The study population consisted of 95 cases(103 eyes),37 cases(38 eyes) receiving small incision non-phacoemulsification cataract extraction combined with IOL implantation and 58 cases(65 eyes) receiving phacoemulsification combined with intraocular lens implantation.To observe visual acuity,corneal astigmatism and postoperative complications of the two groups. Results There have no signification differences between the patients who had received phacoemulsification combined with IOL implantation and the patients who had received Small incision non-phacoemulsification cataract extraction combined with IOL implantation on visual acuity,corneal astigmatism and complications postoperatively. Conclusion Small incision non-phacoemulsification cataract extraction combined with IOL implantation has good effect,lower cost and it is applicable to the grass roots hospitals extensively.
Astigmatism
Cataract extraction
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ObjectiveTo compare the influence of different cataract extraction on astigmatism and recovery of vision function.To explore the possibility in establishment of a method of cataract operation capable of recovering normal visual acuity rapidly at the early stage of postoperation. Methods298 eyes with senile cataract were divided into 4 groups:phacoemulsification with silicone foldable intraocular lens(IOL) implantation group (phacoemulsificationⅠ),phacoemulsification with one-piece IOL implantation group (phacoemulsificationⅡ), small incision cataract extraction with one-piece IOL implantation group (small incision) and extracapsular cataract extraction with one-piece IOL implantation group (ECCE). ResultsThe average uncorrect visual acuity of phacoemulsification Ⅰ group was significantly better than that of other groups 3 d and 1 week after the operation(P 0.05).No difference was found in the average uncorrect visual acuities among phacoemulsification Ⅰ group, phacoemulsification Ⅱ group and small incision group 1 month and 3 month after operation,while notable difference was seen between these three groups and that of ECCE group(P 0.05). The mean postoperative astgmatism of phacoemulsification Ⅰ group was significantly less than that of other groups 1 week and 1 month after operation (P 0.05).The mean postoperative astgmatism of phacoemulsification Ⅰ group was not significantly different from that of phacoemulsification Ⅱ group and small incision group 3 month after the operation(P 0.05),which was different from that of ECCE group(P 0.05). ConclusionThe phacoemulsification with foldable intraocular lens implantation was the best method in rehabilitating visual acuity and stabilizing the refractive situation at the early stage of postoperation.
Astigmatism
Cataract extraction
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Purpose: To analyse the effect of phacoemulsification on the control of intraocular pressure in primary open angle glaucoma in patients having phacoemulsification after previous trabeculectomy and compare them with a control group who had trabeculectomy alone. Patients and Methods: Twenty one patients (one eye from each) who had phacoemulsification subsequent to trabeculectomy were identified, and compared with 41 controls. Intraocular pressure, bleb appearance, glaucoma medications, iris manipulation and complications were recorded. Each patient was followed for full 12 months. Failure of control was defined as follows: 1) intraocular pressure >21 mm Hg on medication, or 2) a greater number of glaucoma medications than before phacoemulsification. Results: The post operative change in intraocular pressure in the case group at 12 months was much less than that in the control (p = 0.001). The mean intraocular pressure had changed from 15.3 mm Hg to 14.7 mm Hg. The control group showed an average intraocular pressure reduction of 6 mm Hg at the last visit (p > 0.001). In phacoemulsification group, 19% required 1 or 2 glaucoma medications at one year follow-up vs 19.5% in the control group. In phacoemulsification group, 9.5% showed flattening of a previously formed bleb at the last visit (P < 0.001), compared with 9.7% of controls. Conclusions: The stability of glaucoma control in the first year after phacoemulsification in previously filtered eyes with primary open angle glaucoma is comparable to that of the natural course after trabeculectomy. The study is limited by the small number of cases available.
Bleb (medicine)
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Objetive To observe the clinical effects of ultra small incision non-phacoemulsification cataract extraction combined with foldable intraocular lens implantation. Methods 107 cases(107 eyes) were selected for ultra small incision nonphacoemulsification cataract extraction with combined with foldable intraocular lens implantation. 112 cases(112 eyes) undertook small incision non-phacoemulsification cataract extraction combined with hard intraocular lens implantation. Their visual acuity at a week postoperative was compared. Results The visual acuity a week postoperatively better than 0.3 were 88.78% and 66.96%, respectively. Conclusion Ultra small incision non-phacoemulsification cataract extraction combined with foldable intraocular lens implantation is better than small incision non-phacoemulsification cataract extraction combined with hard intraocular lens implantation on postoperative vision a week postoperatively. It can be promoted in hospitals lack of equipment.
Cataract extraction
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Objective To evaluate the effect of phacoemulsification and intraocular lens implantation with topical anesthesia in out patients department.Methods Phacoemulsification and intraocular lens implantation were performed successively in 132 patients(157 eyes) with topical anesthesia.Results Phacoemulsification and intraocular lens implantation were successfully performed in 152 eyes(96.8%)with topical anesthesia and 5 eyes(3 2%)need retrobulbar anesthesia additionally.The visual acuity and complications after operation in the topical anesthesia were the same as that performed previously under retrobular anesthesia.Conclusions Phacoemulsification and intraocular lens implantation may be performed with topical anesthesia through scleral tunnel incision.It is convenient for us to perform the operations on the out patient patients with cataract.
Topical anesthesia
Local anesthesia
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Objective: To observe the advantages and difficulties of small-incision non-phacoemulsification ECCE and intraocular lens implantation. Methods: 317 cases(373 eyes) of cataract received mall-incision non-phacoemulsification ECCE and intraocular lens implantation with frown-shaped scleral tunnel incision.We analysis the difficulties and complications of this surgery.Results: One month after surgery,there were 315 eyes which the visual acuity was better than 0.4(84.45%).All patients were satisfied with surgery.Conclusion: Small-incision non-phacoemulsification ECCE and intraocular lens implantation needs not expensive instruments and easy to catch on,it is more valuable to be spread used for hospitals at grass roots.
Intraocular lenses
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Objective To study application and advantages of small-incision non-phacoemulsification and intraocular lens implantation (IOL).Methods Three hundred and twenty six cases (348 eyes) of cataract were undergone small-incision non-phacoemulsification and intraocular lens implantation (IOL).Results The best corrected visual acuity higher than 0.5 was seen in 256 eyes(73.6%)in one week after operation and in 316 eyes(90.8%)within three month after operation.Conclusion Small incision, minimal tissue damage, less complications and rapid recovery of vision are advantages of small-incision non-phacoemulsification and intraocular lens implantation.
Intraocular lenses
Surgical incision
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