Effect of intraocular lenses on preventing posterior capsule opacification

Nishi, Okihiro; Nishi, Kayo; Osakabe, Yashuhiro

doi:10.1016/j.jcrs.2004.05.022

Cited by 102 publications

(105 citation statements)

References 15 publications

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“…As there is little posterior pressure in eyes with no vitreous, and capsular bend formation may require not only a sharp optic edge but also posterior pressure, it is possible that the IOL edge has a minimal effect in reducing PCO in phacovitrectomy. 18 Also, more postoperative inflammation probably leads to lens epithelial cell migration and more extensive PCO in the phacovitrectomy. 5 On the other hand, Inoue et al 19 reported that a 25-gauge vitrectomy group had significantly less postoperative ocular inflammation than a 20-or a 23-gauge vitrectomy group in rabbit eyes.…”

Section: Resultsmentioning

confidence: 99%

Posterior capsule opacification following 20- and 23-gauge phacovitrectomy (posterior capsule opacification following phacovitrectomy)

Iwase

Oveson

Nishi

2012

Eye

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Purpose To compare the development of posterior capsule opacification (PCO) for idiopathic epi-retinal membrane cases between 20-and 23-gauge phacovitrectomy. Methods Cataract surgery of phacoemulsification with the SA60AT implantation and 20-or 23-gauge vitrectomy was performed for 20 patients in both groups. Cataract surgery alone was performed for 50 patients as the control. The PCO density values were measured using Scheimpflug video photography at 1 week, 1, 3, 6, 12, 18, and 24 months after surgery. The number of eyes that required Nd:YAG laser capsulotomy was also examined. Results The mean PCO value in the 20-gauge phacovitrectomy group increased significantly with time (Po0.001), whereas those in the 23-gauge phacovitrectomy group and the cataract surgery group did not show any significant change. Furthermore, the PCO value in the 20-gauge phacovitrectomy group was significantly greater than that in the 23-gauge phacovitrectomy group at 6, 12, 18 (Po0.05), and 24 months (Po0.01) after surgery. The PCO value in the 23-gauge phacovitrectomy group was significantly greater than that in the cataract surgery group 24 months after surgery (Po0.05). The rate of capsulotomy in the 20-gauge phacovitrectomy group was significantly higher than that in the cataract surgery group (P ¼ 0.007), whereas there was no significant difference between the 23-gauge phacovitrectomy group and the cataract surgery group. Conclusion PCO rate in eyes with the 23-gauge phacovitrectomy was lower than in those with the 20-gauge phacovitrectomy, and PCO rate even in the 23-gauge phacovitrectomy was higher than in those with cataract surgery.

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Section: Resultsmentioning

confidence: 99%

Posterior capsule opacification following 20- and 23-gauge phacovitrectomy (posterior capsule opacification following phacovitrectomy)

Iwase

Oveson

Nishi

2012

Eye

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“…For example, because of little posterior pressure in eyes with no vitreous, it is possible that the IOL edge effect which reduces PCO is minimal in a combined or a sequential surgery [27]. Thus, increase of PCO rate may be anticipated in the combined or the sequential surgery rather than in CS alone.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Posterior Capsular Opacification between a Combined Procedure and a Sequential Procedure of Pars Plana Vitrectomy and Cataract Surgery

Roh¹,

Sohn²,

Lee³

et al. 2009

Ophthalmologica

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Purpose: To compare posterior capsular opacification (PCO) between a combined procedure and a sequential procedure of pars plana vitrectomy (PPV) and cataract surgery (CS). Methods: The medical records of 89 eyes of 85 patients who underwent PPV and CS were retrospectively reviewed. There were 56 eyes of 52 patients with a combined PPV and CS (the combined surgery group), and 33 eyes of 33 patients with CS in a previously vitrectomized eye (the sequential surgery group). The control group was comprised of 130 eyes of 102 patients who underwent CS alone. All patients were followed up for at least 1 year after CS. The major outcome measures were the PCO rate and the interval between CS and PCO formation. There were no significant differences in age and the incidence of diabetes among the 3 groups. Results: The PCO rate checked at 1 year after CS was 12.5% (7/56) in the combined surgery group, 24.2% (8/33) in the sequential surgery group, and 4.6% (6/130) in the control group. The differences in the PCO rate between the subgroups as well as among the 3 groups were statistically significant (p < 0.05). There were no significant differences in the interval between CS and PCO formation among the 3 groups. Conclusion: This study demonstrates that the PCO rate may be lower in patients who have a combined procedure of PPV and CS than in those who have a sequential procedure.

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“…The decrease in mean uncorrected and best-corrected visual acuity reported at 15 months was due to posterior capsular opacification which improved significantly after YAG capsulotomy. 10 Anterior and posterior capsule opacifications are frequent complications of foldable IOL implantation and are related to factors such as IOL material, its design, 11 and surgical technique. 12 Auffarth et al 13 reported the rate of Nd : YAG laser capsulotomy over 3-year follow-up period to be (7.1%) in the hydrophobic acrylic group, followed by silicone (16.2%), PMMA (19.3%) and hydrophilic acrylic (31.1%), respectively.…”

Section: Evolution Of Microincision Cataract Surgerymentioning

confidence: 99%

Microincision bimanual phacoemulsification and Thinoptx® implantation through a 1.70 mm incision

Prakash

Kasaby

Aggarwal

et al. 2006

Eye

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Purpose To prospectively assess the efficacy of bimanual phacoemulsification and implantation of Thinoptx s , an injectable intraocular lens (IOL), inserted through 1.70 mm clear corneal incision. Setting Department of Ophthalmology, Southend Hospital NHS Trust, UK. Methods A total of 50 eyes of 49 randomly selected patients with cataracts had microincision clear corneal bimanual phacoemulsification (MICS) with implantation of Thinoptx s IOL in the capsular bag. All patients underwent full preoperative assessment. Postoperative assessment was carried out at 3 and 6 weeks and at 15 months. Results In all 50 cases the IOL was inserted through 1.70 mm clear corneal incision. The mean best-corrected visual acuity was 0.02 (6/ 6-1) at 6 weeks and was 0.17 (6/10) at the final follow-up. The mean final surgically induced astigmatism at 6 weeks was 0.0106. Coloured haloes around artificial lights were perceived by 69.23% of patients at 6 weeks and by 61.29% at the final follow-up. One patient underwent IOL exchange for this. Posterior capsular opacification was noticed in 31.26% at 6 weeks and in 64.51% at 15 months. Anterior capsular opacification was noticed in 5.26% at 6 weeks and in 16.12% at 15 months. In one patient the IOL had to be exchanged because of tilt and displacement of the IOL due to anterior capsular phimosis. Conclusions We conclude Thinoptx s can be safely inserted through 1.70 mm incision used for bimanual phacoemulsification. Distance and near visual acuity achieved with this IOL is satisfactory. There is no significant change in keratometric astigmatism following this procedure. However, posterior capsular opacification rate was significantly higher with this IOL. Haloes around light sources were significant.

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Effect of intraocular lenses on preventing posterior capsule opacification

Cited by 102 publications

References 15 publications

Posterior capsule opacification following 20- and 23-gauge phacovitrectomy (posterior capsule opacification following phacovitrectomy)

Posterior capsule opacification following 20- and 23-gauge phacovitrectomy (posterior capsule opacification following phacovitrectomy)

Comparison of Posterior Capsular Opacification between a Combined Procedure and a Sequential Procedure of Pars Plana Vitrectomy and Cataract Surgery

Microincision bimanual phacoemulsification and Thinoptx® implantation through a 1.70 mm incision

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