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?AlM: To compare the clinical effect between small-incision cataract surgery and phacoemulsification. ?METHODS: Totally 93 patients ( 124 eyes ) with age-related cataract who received treatment in Mar 2010 and Feb 2013 were dicided into 2 groups randomly. Forty-two patients ( 59 eyes ) in group small - incision cataract surgery ( SlCS ) were treated by SlCS, while other 51 patients ( 65 eyes ) in group Phaco were treated by phacoemulsification. And then, postoperative visual acuity, corneal astigmatism, surgically induced astigmatism ( SlA ) and intraoperative and postoperative complications were contrasted between groups. ?RESULTS: After 1d and 1wk of postoperation, there were 38 eyes ( 64. 4%) and 41 eyes ( 69. 5%) having a better visual acuity of 0. 5 in the SlCS group, while there were 29 eyes (44. 6%) and 32 eyes (49. 2%) in the Phaco group. The vision of SlCS group was better than that of Phcao group (χ2 = 4. 877, 5. 242, P 0. 05). The average corneal astigmatism used analysis of repeatedly measuring designing variance: Comparing the corneal astigmatism in intra - groups at different times, it was statistically significant (F=25. 624, P0. 05). The coneal astigmatism of each group was higher at 1wk after the surgery than that of preoperation, and the contrast had statistical sigenficence (t=2. 906, 2. 427, P0. 05). There were statistical differences in SlA at different time both by intra-group comparison and group comparison ( F=26. 37, P ?CONCLUSlON: Our research shows that small-incision cataract surgery and phacoemulsification had similar effect in the treatment of cataract. Phacoemulsification is not the only surgery option for the best treatment effect. Small- incision cataract surgery can be popularized in basic- level hospitals, achieving the effect similar to phacoemulsification.
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AIM:To observe the application efficiency of 5g/L indocyanine green ( ICG ) staining technique for continuous circular capsulorhexis ( CCC ) during phacoemulsification in white cataract. METHODS:Ninety-eight patients (98 eyes) with white cataract were randomly divided into staining group ( 50 cases, 50 eyes) and control group (48 cases, 48 eyes). The control group didn't do anterior capsule staining. The staining group was injected to fill the anterior chamber, 5g/L ICG 0.1mL was applied on the central surface of the anterior capsule, using a 27G blunt needle through the side-port after 30s, and the redundant ICG was replaced by BSS, and continuous curvilinear capsulorhexis was accomplished using capsulorhexis forceps. RESULTS: In staining group: after ICG staining, the capsule, which presented uniform light green and visualization of the anterior capsule was significantly improved. There are 48 eyes capsulorhexis success. The rate of success was 96%. Meanwhile, in control group, there was 29 eyes capsulorhexis success. The rate of success was 60%. The difference was statistically significant (P CONCLUSION:Indocyanine green staining increases the visibility of anterior capsule in over mature cataract, and it should be an effective and helpful method which can increase the success rate of capsulorehxis. At the same time, it can reduce the incidence of intraoperative complications. This will help beginners quickly grasp continuous curvilinear capsulorhexis, and shorten the learning curve.
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Background Prevention and treatment of posterior capsular opacification (PCO) is a hot issue.To establish a PCO animal model is the basis of relevant studies.The most common methods of creating a PCO model are phacoemulsification surgery with or without intraocular lens (IOL) implantation.But the suitability of different methods is unclear.Objective This experiment was to compare the outcome between the two methods of establishing a PCO model in rabbit eyes.Methods Twenty New Zealand white rabbits were collected and randomized into 2 groups.Phacoemulsification of cataract with IOL or without IOL implantation was performed on the right eyes of rabbits in these two groups.The operative eyes were examined under the slit lamp from day 1 through 3 months after surgery.The inflammatory response was evaluated and compared between the two groups,and the extent of PCO was graded based on Odrich's criteria.The use of the animals complied with the Regulations for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results The inflammatory response,including conjunctival congestion,corneal edema and aqueous flare were less severe in the model eyes with IOL implantation than the eyes without IOL implantation 1-3 days after operation.Inflammatory response gradually disappeared and showed the same degree in the PCO grade from 2 weeks through 3 months in both groups.The numbers of eyes with 1-3 grade of PCO were 8 and 9,and those with 0 grade of PCO were 2 and 1 in the with IOL implantation group and without IOL implantation group,respectively,showing a significant difference (P=0.39).PCO appeared at 1 month,extended at 2 months and formed dense fibrosis following operation.Conclusions The model outcome of phacoemulsification combined with IOL implantation is better than without IOL implantation one.It is the ideal animal model for the study of after cataract.