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Hyaloid Membrane vs Posterior Capsule as a Protective Barrier-Reply

Hyaloid Membrane vs Posterior Capsule as a Protective Barrier-Reply Abstract In Reply. — Dr Wand suggests that the intact anterior hyaloid membrane face may be a barrier to the movement of macromolecules from the vitreous to aqueous in addition to the posterior capsule and lens-zonular diaphragm. We cannot determine the relative contributions of the vitreous, anterior hyaloid membrane, and posterior capsule and zonules as a barrier to the movement of macromolecules from the vitreous to aqueous in our rabbit model. The strength of the hyaloideocapsular ligament in the rabbit makes a rent in the anterior hyaloid membrane very likely when a posterior capsulotomy is performed. We have considered isolating the posterior capsule and testing the diffusion of macromolecules across the posterior capsule in a Boyden chamber, as suggested by Wand, but have found this technique difficult in the rabbit, given the strong attachment of the anterior hyaloid membrane to the posterior capsule.A recent study by Poliner and associates1 References 1. Poliner LS, Christianson DJ, Escoffery RF, et al: Neovascular glaucoma following intracapsular and extracapsular cataract extraction in diabetic patients , abstracted. Invest Ophthalmol Vis Sci 1985;26( (suppl) ):25. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Hyaloid Membrane vs Posterior Capsule as a Protective Barrier-Reply

Archives of Ophthalmology , Volume 103 (8) – Aug 1, 1985

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Publisher
American Medical Association
Copyright
Copyright © 1985 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1985.01050080024008
Publisher site
See Article on Publisher Site

Abstract

Abstract In Reply. — Dr Wand suggests that the intact anterior hyaloid membrane face may be a barrier to the movement of macromolecules from the vitreous to aqueous in addition to the posterior capsule and lens-zonular diaphragm. We cannot determine the relative contributions of the vitreous, anterior hyaloid membrane, and posterior capsule and zonules as a barrier to the movement of macromolecules from the vitreous to aqueous in our rabbit model. The strength of the hyaloideocapsular ligament in the rabbit makes a rent in the anterior hyaloid membrane very likely when a posterior capsulotomy is performed. We have considered isolating the posterior capsule and testing the diffusion of macromolecules across the posterior capsule in a Boyden chamber, as suggested by Wand, but have found this technique difficult in the rabbit, given the strong attachment of the anterior hyaloid membrane to the posterior capsule.A recent study by Poliner and associates1 References 1. Poliner LS, Christianson DJ, Escoffery RF, et al: Neovascular glaucoma following intracapsular and extracapsular cataract extraction in diabetic patients , abstracted. Invest Ophthalmol Vis Sci 1985;26( (suppl) ):25.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Aug 1, 1985

References