Comparison of early visual quality between PPCIOL implantation and femtosecond laser LASIK / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To compare the effects of posterior chamber intraocular lens implantation(PPCIOL)and femtosecond laser LASIK in the treatment of high myopia on postoperative visual quality.<p>METHODS: Randomly selected 83 patients with 168 eyes with high myopia from 2015-06/2017-06 in our hospital, they were divided into two groups according to the treatment. Group A was treated with PPCIOL, and group B was treated with femtosecond laser LASIK. The efficacy index, safety index, visual acuity and diopter, high-order aberration changes, contrast sensitivity values, and complications in both group were compared.<p>RESULTS: There was no significant difference in the efficacy index between the two groups(<i>P</i>>0.05), and the safety index of group A was higher than that of group B(<i>P</i><0.05). The number of patients with UCVA and BCVA greater ≥1.0 after surgery in both groups were increased, while the diopter decreased, and the difference between the two groups was not statistically significant(<i>P</i>>0.05). Compared with preoperative, there was no significant difference in the contrast sensitivity between the visual acuity, scotopic glare and glare in group A(<i>P</i>>0.05). Compared with group A, the visual sensitivity, glare-free glare and glare contrast sensitivity values of group B decreased, and the differences between groups and groups were statistically significant(<i>P</i><0.05). There was no significant difference in the incidence of complications between the two groups(<i>P</i>>0.05).<p>CONCLUSION: PPCIOL and femtosecond laser LASIK can effectively correct the vision of patients with high myopia, but PPCIOL has less influence on high-order aberrations and contrast sensitivity, and has more advantages in postoperative visual quality.

Correction effect of phakic posterior chamber implantable contact lens implantation on high myopia / 国际眼科杂志(Guoji Yanke Zazhi)

·AIM:To analyze the clinical efficacy of phakic posterior chamber implantable contact lens (ICL) implantation on high myopia patients. · METHODS: Thirty - four patients (68 eyes) who checked and diagnosed as high myopia in our hospital from June 2014 to June 2015 were selected as the clinical research subjects,and all the patients were given phakic posterior chamber intraocular lens implantation treatment. The diopter, visual acuity recovery, central anterior chamber depth, corneal endothelial cell count, and intraocular pressure after treatment were observed. ·RESULTS: The equivalent spherical refraction, central anterior chamber depth, uncorrected visual acuity and best corrected visual acuity recovery at 1, 3 and 6mo, 1 and 2a after treatment were better than those before treatment, and the differences were statistically significant (P < 0. 05). There were no significant differences in corneal endothelial cell count and intraocular pressure at 1, 3 and 6mo, 1 and 2a after treatment compared with those before treatment (P>0.05). There were no significant differences in uncorrected visual acuity, best corrected visual acuity, equivalent spherical refraction and central anterior chamber depth at 1, 3mo and 1 and 2a after treatment (P>0.05).·CONCLUSION: The application of phakic posterior chamber intraocular lens implantation for the treatment of high myopia patients can improve the equivalent spherical refraction and central anterior chamber depth, improve uncorrected visual acuity, meanwhile, it has less effect on the patient's intraocular pressure and corneal endometrial cells, the effect maintenance and safety is better which meet their expectations.

Correcting effect and visual quality after LASlK and lCL implantation in high myopia patients / 国际眼科杂志(Guoji Yanke Zazhi)

?AIM: To study correcting effect and visual quality after laser - assisted in situ keratomileusis ( LASIK ) with femtosecond and posterior chamber intraocular lens ( ICL) implantation in high myopia patients.?METHODS: Fifty-five patients ( 106 eyes ) with high myopia from February 2012 to February 2015 in our hospital were analyzed. According to the different operation, patients were divided into the observation group( using ICL implantation, 27 cases with 53 eyes) and the control group (using LASIK, 28 cases with 53 eyes). Postoperative follow-up was 1a, to observe and analyze the visual quality, higher order aberration and complications of two groups.?RESULTS: Uncorrected visual acuity ( UCVA ) , the best corrected visual acuity ( BCVA ) , effectiveness index and security index at 1a postoperatively of observation group, were 1. 04±0. 86(LogMAR), 0. 97±0. 19(LogMAR), 104. 69± 18. 56, 108. 79 ± 17. 68, significantly higher than those of control group 0. 78 ± 0. 11 ( LogMAR ), 1. 04 ± 0. 09 (LogMAR), 93.78±15. 65, 100. 71±11. 68 (P 0. 05 ). No severe complications were observed in both groups.?CONCLUSION: LASIK with femtosecond and ICL lens implantation can effectively improve the patient’s visual quality, but for patients with high myopia, ICL lens implantation effect is more significant, the safety index of ICL implantation, as well as the effectiveness index and the visual quality are better than those of LASIK.

Clinical Results of Combined Surgery: Pars Plana Vitrectomy, Phacoemulsification and Posterior Chamber Intraocular Lens Implantation

PURPOSE: To evaluate the clinical outcomes and complications of combined phacoemulsification and vitrectomy surgery in patients who have vitreoretinal diseases with a concomitant cataract. METHODS: Combined phacoemulsification-vitrectomy surgery was performed in 50 eyes of 45 patients who had various vitreoretinal diseases and a significant cataract that is considered to disturb the postoperative visual rehabilitation or fundus examination. Main outcome measures were visual acuity and intraoperative and postoperative complications. RESULTS: We performed combined surgery consisting of pars plana vitrectomy (PPV), phacoemulsification, and posterior chamber intraocular lens (PC-IOL) implantation. Intraocular lens were inserted in the bag with one case of exception inserted in the ciliary sulcus. Thirty-seven eyes (74%) had improved postoperative visual acuity, in 9 eyes (18%) the acuity was unchanged and 4 eyes (8%) it deteriorated. Intraocular pressure elevation, recurrent vitreous hemorrhage, macular edema, retinal detachment and endophthalmitis were considered to be clinically significant postoperative complications. CONCLUSIONS: The results of this study suggest that combined phacoemulsification-vitrectomy surgery is a viable option in the management of most posterior segment diseases in the presence of cataract.

A Clinical Results of Combined Vitrectomy, Cataract Extraction, and Posterior Chamber Intraocular Lens Implantation

Thirty eyes of thirty patients with coexisting cataract and vitreoretinal disease underwent combined cataract extraction, pars plana vitrectomy and posterior chamber intraocular lens implantaion.Surgical procedures of cataract extraction included phacoemulsification(14 eyes), pars plana lensectomy(11 eyes) and extracapsular lens placed in the capsular bag in 19 eyes following phacoemulsification or extracapsular cataract extraction. Eleven eyes had sulcus fixation of posterior chamber lens following lensectomy.Postoperatviely visual acuity improved in 26 eyes(86.7%), unchanged in 3 eyes(10%) and decreased in 1 eye(3.3%). Final visual acuity was 20/200 or better in 26 eyes(86.75), and 20/40 or better in 11 eyes(36.7%). Postoperative complications included rhegmatogenous retinal detachment with proliferative vitreoretinopathy, neovascular glaucoma and endophthalmitis.Pars plana vitrectomy combined with cataract extraction with posterior chamber intraocular lens implantation maybe useful in reducing cost and providing rapid visual rehabilitation.

Effects of Subconjunctival Mitomycin C on Glaucoma Triple Procedure, as Compared with Trabeculectomy alone

Mitomycin C (MMC) trabeculectomy combined with extracapsular cataract extraction and posteor chamber intraocular lens implantation (glaucoma triple procedure, 30 eyes) was clinically compared with MMC trabeculectomy alone (30 eyes). The age, type of glaucoma, and preoperative number of medications were matched with the previous group (P>0.05). The mean preoperative intraocular pressures (IOPs) were 30.2+/-8.3mmHg (range, 22~56mmHg) in the glaucoma triple procedure group and 31.6+/-8.9mmHg (range, 22~57mmHg) in the trabeculectomy alone group (p=0.55). The mean postoperative IOPs were significantly higher in the glaucoma triple procedure group compared with the trabeculectomy alone group at all postoperative vistis (one month to nine months) (p0.05). Although hypotensive effect of MMC on the glaucoma triple procedure was less than on the trabeculectomy alone, glaucoma triple procedure using MMC could be recommended to be safe and effective on controlling the high IOP for treating glaucoma patients with coexisting cataract.

Posterior Chamber Intraocular Lens Implantation Combined with Pars Plana Lensectomy and Intraocular Foreign Body Removal

Four patients with intraocular foreign bodies and traumatic cataracts underwent combined pars plana lensectomy, vitrectomy, and intraocular foreign body removal. During pars plana lensectomy, anterior lens capsule and zonules were left intact. At the end of surgery, a posterior chamber intraocular lens was placed in the sulcus in front of the anterior capsule through a 7-mm limbal incision. This procedure was performed in selected cases of combined anterior and posterior segment trauma. Combining pars plana lensectomy and posterior chamber intraocular lens implantation with posteior segment procedures allows rapid visual rehabilitation and functional unaided vision. We therefore suggest that this technique is effective in treating selected patients with both cataract and vitreoretinal diseases.