Posterior Capsular Plaque: A Common Feature of Cataract Surgery in the Developing World

Peng, Qun; Hennig, Albrecht; Vasavada, Abhay R.; Apple, David J.

doi:10.1016/s0002-9394(98)00032-4

Cited by 32 publications

(21 citation statements)

References 5 publications

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“…It is a primary fibrotic plaque that is sometimes seen on the posterior capsule during CS, but it is too firmly attached to be removed by simple polishing or capsular vacuum clearing. Its incidence increases with the advancement of cataract maturities [29]. Therefore, plaques in vitrectomized eyes would be more common than in non-vitrectomized ones, and this may result in a higher PCO rate in a sequential surgery than in a combined surgery.…”

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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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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“…2 We have found only 1 article dealing with the histological examination of plaques. 3 In this study, lenses removed by intracapsular cataract extraction were examined, and it was found that the plaques that stained positively with Masson trichrome dye consisted of collagen. It was presumed that these plaques were formed on the posterior capsule by migration and pseudofibrotic metaplasia of the epithelial cells.…”

Section: Discussionmentioning

confidence: 91%

“…Even plaques located centrally do not always cause visual problems for the patient. 1,3 If it does, performing a neodymium:YAG laser capsulotomy is another possibility but we suggest waiting at least 6 months after surgery to do this.…”

Section: Discussionmentioning

confidence: 99%

Histological examination of primary posterior capsule plaques

Bíró

Kereskai²,

Tsorbatzoglou

et al. 2007

Journal of Cataract and Refractive Surgery

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Primary posterior capsule plaques were found primarily in elderly patients with mature cataracts but were also present post vitrectomy in those who had DM from a young age and had early stages of cataract. In the early plaque stage, cells with nuclei were found. It follows that plaques are capable of proliferation at this stage, aggravating visual disturbance. Therefore, removing the plaques by peeling from the posterior capsule or by posterior capsulorhexis during surgery is suggested.

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“…This is commonly found with advanced cataracts in LMICs. 16 The better uncorrected visions at discharge and 6 weeks in the rigid PMMA IOL group were unexpected. We believe this is due to lower spherical equivalent refractive error in these eyes.…”

Section: Discussionmentioning

confidence: 94%

Foldable vs rigid lenses after phacoemulsification for cataract surgery: a randomised controlled trial

Hennig¹,

Puri²,

Sharma³

et al. 2014

Eye

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Purpose To compare the outcomes of phacoemulsification with either a 2.5-mm clear corneal incision and a foldable intraocular lens (IOL) or a 5-mm sclerocorneal tunnel incision and a rigid polymethyl methacrylate (PMMA) IOL. Methods In a prospective, randomised clinical trial of phacoemulsification cataract surgery, 1200 patients received either a foldable hydrophilic acrylic IOL through a 2.5-mm corneal incision or an inexpensive rigid PMMA IOL via a 5-mm sclerocorneal tunnel. Intra-and post-operative data and visual acuity at discharge, 6 weeks, and 1 year follow-up were analysed.Results At 1 year after surgery, 996 (83.0%) patients were followed up with an uncorrected visual acuity of 6/18 or better in 90.3% of the foldable and 94.3% in the rigid IOL group (risk ratio (RR) 0.96, 95% confidence intervals (CI) 0.92-0.99). Poor outcome (best-corrected acuity 6/60 or worse) occurred in 1.0% and 0.4%, respectively (RR 4.28,). The surgical cost of consumables and overall surgical time were similar in both groups; however, the cost of the foldable IOL was eight times higher than the PMMA IOL. Posterior capsule opacification was more common in the rigid IOL group at 12 months (36.1% vs 23.3%); however, this did not affect postoperative vision. Conclusion In the hands of experienced cataract surgeons, phacoemulsification with implantation of a foldable or a rigid IOL gives excellent results. Using an inexpensive rigid PMMA IOL will make phacoemulsification more affordable for poor patients in low-and middle-income countries.

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Posterior Capsular Plaque: A Common Feature of Cataract Surgery in the Developing World

Cited by 32 publications

References 5 publications

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

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

Histological examination of primary posterior capsule plaques

Foldable vs rigid lenses after phacoemulsification for cataract surgery: a randomised controlled trial

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