Measured and Predicted Anterior Chamber Depth for Transscleral Suture-Fixated Posterior Chamber Intraocular Lenses

The purpose of this study was to examine visual function and eye structure before and after implantation of an intraocular lens in the phakic posterior chamber of the eye, for the correction of extreme myopia. Thirty subjects with 12∼ –27 diopters of extreme myopia were implanted with posterior chamber phakic intraocular lenses, and followed-up for 3–27 months. The follow-up examinations included uncorrected visual acuity (UCVA), best corrected visual acuity (BSCVA), intra ocular pressure (IOP), refractive power, lens transparency, intra ocular lens (IOL) position, endothelial cell density (ECD), anterior chamber depth (ACD), axial length, near point of accommodation, and macular retinal thickness. All indices improved after the surgery. These results demonstrate that the implantable collamer lens (ICL) for extreme myopia can effectively improve vision, and does not have negative effects on eye structure and accommodation.

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Postoperative Refraction and Anterior Chamber Depth After Complicated Cataract Surgery With Vitreous Loss and Transscleral Suture Fixation of Posterior Chamber Lenses

Ophthalmic Surgery Lasers and Imaging Retina ◽

10.3928/1542-8877-19930801-11 ◽

1993 ◽

Vol 24 (8) ◽

pp. 542-545

Author(s):

Hans Mittelviefhaus ◽

Peter Janknecht

Keyword(s):

Cataract Surgery ◽

Anterior Chamber ◽

Anterior Chamber Depth ◽

Posterior Chamber ◽

Suture Fixation ◽

Complicated Cataract ◽

Vitreous Loss ◽

Posterior Chamber Lenses ◽

Transscleral Suture Fixation

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Long-Term Effect of Anterior Chamber Depth on Endothelial Cell Density in Patients With Iris-Fixated Phakic Intraocular Lenses

Journal of Refractive Surgery ◽

10.3928/1081597x-20190708-01 ◽

2019 ◽

Vol 35 (8) ◽

pp. 493-500 ◽

Cited By ~ 3

Author(s):

Alaa M. Eldanasoury ◽

Mehdi Roozbahani ◽

Sherif Tolees ◽

Christina Arana

Keyword(s):

Endothelial Cell ◽

Anterior Chamber ◽

Cell Density ◽

Anterior Chamber Depth ◽

Term Effect ◽

Endothelial Cell Density ◽

Intraocular Lenses ◽

Long Term Effect ◽

Phakic Intraocular Lenses

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Change in anterior chamber depth following combined pars plana vitrectomy, phacoemulsification, and intraocular lens implantation using different types of intraocular lenses

Japanese Journal of Ophthalmology ◽

10.1007/s10384-010-0840-y ◽

2010 ◽

Vol 54 (5) ◽

pp. 383-386 ◽

Cited By ~ 5

Author(s):

Akira Watanabe ◽

Tomohiro Shibata ◽

Miho Ozaki ◽

Kiichirou Okano ◽

Kenichi Kozaki ◽

...

Keyword(s):

Anterior Chamber ◽

Intraocular Lens ◽

Pars Plana Vitrectomy ◽

Anterior Chamber Depth ◽

Intraocular Lenses ◽

Intraocular Lens Implantation ◽

Lens Implantation ◽

Different Types ◽

Pars Plana

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Risk Factors for and Management of Anterior Chamber Intravitreal Dexamethasone Implant Migration

10.21203/rs.2.159/v3 ◽

2019 ◽

Author(s):

Daniel Röck ◽

Karl Ulrich Bartz-Schmidt ◽

Tobias Röck

Keyword(s):

Risk Factors ◽

Anterior Chamber ◽

Intraocular Lenses ◽

Posterior Chamber ◽

Dexamethasone Implant ◽

Implant Migration ◽

Intravitreal Dexamethasone Implant ◽

Increased Risk ◽

Intravitreal Dexamethasone ◽

Capsular Bag

Abstract Background This study aimed to investigate the incidence of and risk factors for the anterior chamber migration of an intravitreal dexamethasone implant (Ozurdex®). Methods A retrospective review of 640 consecutive intravitreal dexamethasone implant injections was conducted from February 2011 through February 2018 at the University Eye Hospital in Tübingen, Germany. Those patients who experienced anterior chamber dexamethasone implant migrations were identified, as well as the reasons for the anterior chamber migration. The surgical histories were obtained and comprehensive ophthalmic examinations were conducted for all of the eyes. Cross-tabulations, chi-squared tests, and Fisher's exact tests were used to assess the influences of different factors on the anterior chamber implant migrations. Results Overall, 4 eyes of four patients (0.63%) showed anterior chamber implant migrations. All four of the eyes were pseudophakic, and they had undergone prior vitrectomies. Three eyes had sclerally-fixated intraocular lenses, and one eye had a posterior chamber intraocular lens in the capsular bag, with a capsular tension ring due to partial zonular dehiscence. When comparing the vitrectomized eyes with reduced zonular/capsular bag complex integrity to the vitrectomized pseudophakic eyes with intact zonular/capsular bags, the former were significantly associated with an increased risk of anterior chamber implant migration (P = 0.008). The vitrectomized pseudophakic eyes, in contrast to the nonvitrectomized pseudophakic eyes, were significantly associated with an increased risk of anterior chamber implant migration (P = 0.009). Conclusions The anterior chamber migration of an intravitreal dexamethasone implant is a serious complication. To minimize the risk of permanent corneal edema, immediate removal of the implant with a 20-gauge alligator forceps over a 2.75-mm long clear corneal tunnel is important. Those patients with insufficient zonular support, defects, or missing posterior capsular membranes and vitrectomy histories present a high risk of anterior chamber dexamethasone implant migration.

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Risk Factors for and Management of Anterior Chamber Intravitreal Dexamethasone Implant Migration

10.21203/rs.2.159/v2 ◽

2019 ◽

Author(s):

Daniel Röck ◽

Karl Ulrich Bartz-Schmidt ◽

Tobias Röck

Keyword(s):

Risk Factors ◽

Anterior Chamber ◽

Intraocular Lenses ◽

Posterior Chamber ◽

Dexamethasone Implant ◽

Implant Migration ◽

Intravitreal Dexamethasone Implant ◽

Increased Risk ◽

Intravitreal Dexamethasone ◽

Capsular Bag

Abstract Background This study aimed to investigate the incidence of and risk factors for the anterior chamber migration of an intravitreal dexamethasone implant (Ozurdex®). Methods A retrospective review of 640 consecutive intravitreal dexamethasone implant injections was conducted from February 2011 through February 2018 at the University Eye Hospital in Tübingen, Germany. Those patients who experienced anterior chamber dexamethasone implant migrations were identified, as well as the reasons for the anterior chamber migration. The surgical histories were obtained and comprehensive ophthalmic examinations were conducted for all of the eyes. Cross-tabulations, chi-squared tests, and Fisher's exact tests were used to assess the influences of different factors on the anterior chamber implant migrations. Results Overall, 4 eyes of four patients (0.63%) showed anterior chamber implant migrations. All four of the eyes were pseudophakic, and they had undergone prior vitrectomies. Three eyes had sclerally-fixated intraocular lenses, and one eye had a posterior chamber intraocular lens in the capsular bag, with a capsular tension ring due to partial zonular dehiscence. When comparing the vitrectomized eyes with reduced zonular/capsular bag complex integrity to the vitrectomized pseudophakic eyes with intact zonular/capsular bags, the former were significantly associated with an increased risk of anterior chamber implant migration (P = 0.008). The vitrectomized pseudophakic eyes, in contrast to the nonvitrectomized pseudophakic eyes, were significantly associated with an increased risk of anterior chamber implant migration (P = 0.009). Conclusions The anterior chamber migration of an intravitreal dexamethasone implant is a serious complication. To minimize the risk of permanent corneal edema, immediate removal of the implant with a 20-gauge alligator forceps over a 2.75-mm long clear corneal tunnel is important. Those patients with insufficient zonular support, defects, or missing posterior capsular membranes and vitrectomy histories present a high risk of anterior chamber dexamethasone implant migration.

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