mechanical properties of anterior lens capsule assessed
The red reflex and the anterior lens capsule.11 Trypan blue is commer- view of the anterior capsule can be compromised in cially available in the United States as VisionBlue (try- eyes with white or dense cataract, corneal haze, and pan blue 0.06%, D.O.R.C. International b.v.).3 In vitro vitreous hemorrhage.1,3,4 Poor visualization of the cap
Mar 01, 2020 · The lens capsule, a thin specialized basement membrane that encloses the crystalline lens, is essential for both the structural and biomechanical inte Characterizing human decellularized crystalline lens Dec 21, 2017 · The human crystalline lens capsule (LC) is an epithelial basement membrane that completely encapsulates the crystalline lens and forms the anatomical separation of the anterior and posterior segment of the eye. The LC is composed of collagen IV and laminin and structurally divided at the equatorial region into an anterior and posterior capsule.
Jan 01, 2017 · When the crystalline lens was removed, none of the eyes developed anterior capsule tears or posterior capsule ruptures. The average CCC diameters were 4.27 [+ or -] 0.32 mm, 5.38 [+ or -] 0.22 mm, and 6.58 [+ or -] 0.25 mm in the small CCC, middle Computational Model of Evolving Lens Capsule Jul 28, 2010 · Although several studies have quantified the mechanical behavior and properties of the normal human anterior lens capsule, our prior in situ biaxial mechanical testing and inverse finite element parameter estimation is the only study that considered variations with radial position.25 Therefore, we similarly utilized the following 2-D hyperelastic (phenomenological) constitutive relation:
Sep 01, 2010 · As an alternative to purely mechanical methods, optical tracking of passive osmotic swelling was used to assess mechanical properties of the porcine lens capsule. A simple model was developed accounting for the permeability of the lens fiber cells and capsule to water, the concentration of fixed charges in the fiber cells, and the capsule's Evaluation of mechanical resistance to tearing of the Trypan blue is a dye that is commonly used to facilitate visualization of the anterior lens capsule during the creation of the anterior capsulorhexis. 1 Several studies have reported that trypan blue affects the mechanical properties of the anterior lens capsule. 25 However, only one study evaluated the stained capsular opening; the authors of that study found no difference in tear resistance based on
Mar 05, 2018 · Rotation occurs most frequently in the early postoperative period, before anterior and posterior capsules fuse together with the lens. 17 The strength of IOL adhesion to the bag varies:hydrophobic implants have the highest adhesive properties, followed by the hydrophilic ones, then the polymethyl methacrylate (PMMA) IOLs, and finally the Lens capsule structure assessed with atomic force Dec 01, 2014 · For the porcine lens capsule, a study by Danielsen found that the capsule is approximately four times thicker but 50% less stiff than the human lens capsule. Therefore, these differences in thickness and mechanical properties should be manifested in differences in structure as well, as shown in this study (see Figure 1 ).
Oct 28, 2016 · Sandor GL, Kiss Z, Bocskai ZI, Kolev K, Takacs AI, Juhasz E, et al. Comparison of the mechanical properties of the anterior lens capsule following manual capsulorhexis and femtosecond laser capsulotomy. J Refract Surg. 2014;30(10):6604. pmid:25291748. View Article PubMed/NCBI Molecular Vision:Age-dependency of molecular diffusion in Age-dependency of molecular diffusion in the human anterior lens capsule assessed using fluorescence recovery after photobleaching. Vivian M. Sueiras, 1 Floriane Devaux, 1 Benjamin Smith, 1 James Lai, 1 Wyndham Batchelor, 1 Nikita Y. Likht, 2 Vincent T. Moy, 3 Noël M. Ziebarth 1, 3 1 Department of Biomedical Engineering, University of Miami College of Engineering, Coral Gables, FL;
Previous studies have shown that the anterior lens capsule becomes thicker with age (Krag et al, 1997), which could be responsible for the increase in bulk stiffness. However, changes in the microscale mechanical properties of the lens capsule could also be a factor in the increase in bulk stiffness. Publications with Piuma and Chiaro - Optics11 LifeJan 07, 2021 · Mechanical properties of anterior lens capsule assessed with AFM and nanoindenter in relation to human aging, pseudoexfoliation syndrome, and trypan blue staining; Tissue engineering and 3D cell cultures:Intrinsic Abnormalities of Cystic Fibrosis Airway Connective Tissue Revealed by an In Vitro 3D Stromal Model
Oct 31, 2012 · Mechanical properties of anterior lens capsule assessed with AFM and nanoindenter in relation to human aging, pseudoexfoliation syndrome, and trypan blue staining. Journal of the Mechanical Behavior of Biomedical Materials 2020, 112 , 104081. Scanning Electron Microscopy Analysis of the Anterior Nov 14, 2018 · The mechanical properties of the human lens capsule following capsulorrhexis or radiofrequency diathermy capsulotomy. Archives of Ophthalmology . 1996; 114 (9):11101115. doi:10.1001/archopht.1996.01100140312010.
Apr 10, 2018 · The effects of mechanical strain on mouse eye lens capsule and cellular microstructure. Bulk compressive properties of lenses were assessed by sequential application of glass coverslips onto the completely dissected lens as Contributions of mouse genetic background and age on anterior lens capsule thickness. Anat Rec [Biomechanical properties of the anterior lens capsule PURPOSE To comparatively evaluate the mechanical stability of the edge of central fragment of anterior lens capsule after manual and femtolaser capsulotomy. MATERIAL AND METHODS The mechanical tests were performed on the central fragments of the anterior lens capsules obtained intraoperatively after manual and femtolaser capsulotomy (15 and 13 samples, respectively).
Feb 20, 2015 · Sándor GL, Kiss Z, Bocskai ZI, et al. Comparison of the mechanical properties of the anterior lens capsule following manual capsulorhexis and femtosecond laser capsulotomy. J Refract Surg. 2014; 30:660664. 10.3928/1081597X-20140903-08. Google Scholar; 12. Riau AK, Poh R, Pickard DS, Park CH, Chaurasia SS, Mehta JS.