Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Habitat Fragmentation02:31

Habitat Fragmentation

21.4K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
21.4K
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

4.0K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
4.0K
Elasticity01:12

Elasticity

5.0K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
5.0K
Elasticity in Concrete01:20

Elasticity in Concrete

363
Upon subjecting concrete to moderate or high uniaxial compressive or tensile stresses, the strain response is non-linear relative to the stress applied. As the stress is removed, the resulting stress-strain curve deviates from the original path traced during loading, creating a hysteresis loop, indicative of the concrete's non-linear and non-elastic properties. Typically, a material's modulus of elasticity, which is a measure of the material's stiffness, is inferred from the linear...
363
Feedback Loops01:01

Feedback Loops

64.5K
In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.
64.5K
Disassembly of Intermediate Filaments01:35

Disassembly of Intermediate Filaments

2.7K
Intermediate filaments (IFs) do not undergo spontaneous disassembly. Enzymes, kinases, and phosphatases add and remove phosphates from specific sites to regulate their disassembly. The IF concentration in the cytoplasm also regulates the disassembly. If the concentration crosses a threshold, it activates the protein kinases in the vicinity, allowing the phosphorylation of IFs.
Keratin proteins, found at the cell periphery near cell junctions, undergo a cycle of assembly and disassembly. In Type...
2.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Retrospective Evaluation of Successive Biovance <i><sup>®</sup></i> Decellularized Basement Membrane Tissue Grafts for the Management of Chronic Subclinical and Stage 1 Neurotrophic Keratitis.

Clinical ophthalmology (Auckland, N.Z.)·2026
Same author

Preliminary Findings in Cataract Surgery Using a Digital Microscope Platform With Infrared Illumination.

Journal of ophthalmology·2026
Same author

Early Detection of Keratoconus: Diagnostic Advances and Their Impact on Visual Outcomes: A Systematic Review.

Medicina (Kaunas, Lithuania)·2026
Same author

Perfluorohexyloctane Ophthalmic Solution in Patients with Dry Eye Disease Undergoing Cataract Surgery: A Prospective Multicenter Study.

Ophthalmology and therapy·2026
Same author

Contralateral Randomized Comparison Between Intracameral Extended-Release Dexamethasone 9% Suspension Placed in the Capsular Bag with the Established Post-Cataract Regimen.

Advances in therapy·2025
Same author

Reply.

Cornea·2024

Related Experiment Video

Updated: Feb 8, 2026

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher
05:14

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

Published on: February 23, 2018

7.2K

Crystalline lens endocapsular fragmentation using an elastic loop filament.

Vasilios F Diakonis1, Brittany N Cook1, Neel R Desai1

  • 1The Eye Institute of West Florida, Largo, FL, USA.

European Journal of Ophthalmology
|July 6, 2018
PubMed
Summary

A new mechanical technique uses a nitinol loop filament to fragment the crystalline lens during cataract surgery, reducing the need for ultrasound energy.

Keywords:
Cataract surgerycrystalline lens fragmentationelastic loop filament

More Related Videos

Author Spotlight: Advancing Understanding of Age-Related Lens Stiffness Changes
05:19

Author Spotlight: Advancing Understanding of Age-Related Lens Stiffness Changes

Published on: April 5, 2024

2.9K
Author Spotlight: Investigating Lens Development and Function Through Microinjection of RCAS(A) Retrovirus in Embryonic Chicken Lens
04:58

Author Spotlight: Investigating Lens Development and Function Through Microinjection of RCAS(A) Retrovirus in Embryonic Chicken Lens

Published on: September 1, 2023

1.7K

Related Experiment Videos

Last Updated: Feb 8, 2026

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher
05:14

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

Published on: February 23, 2018

7.2K
Author Spotlight: Advancing Understanding of Age-Related Lens Stiffness Changes
05:19

Author Spotlight: Advancing Understanding of Age-Related Lens Stiffness Changes

Published on: April 5, 2024

2.9K
Author Spotlight: Investigating Lens Development and Function Through Microinjection of RCAS(A) Retrovirus in Embryonic Chicken Lens
04:58

Author Spotlight: Investigating Lens Development and Function Through Microinjection of RCAS(A) Retrovirus in Embryonic Chicken Lens

Published on: September 1, 2023

1.7K

Area of Science:

  • Ophthalmology
  • Surgical Technology

Background:

  • Cataract surgery traditionally relies on ultrasonic phacoemulsification for lens fragmentation.
  • High ultrasonic energy can lead to thermal damage and complications.

Purpose of the Study:

  • To introduce and describe a novel mechanical endocapsular fragmentation technique for the crystalline lens.
  • To present an alternative to ultrasonic energy in cataract surgery.

Main Methods:

  • A nitinol loop elastic-thin filament device was employed for mechanical lens fragmentation.
  • The technique involves sectioning the crystalline lens into multiple pieces within the endocapsular bag.

Main Results:

  • Successful endocapsular fragmentation of the crystalline lens was achieved using the nitinol loop.
  • The technique eliminated the need for ultrasonic energy during the fragmentation process.

Conclusions:

  • A micro loop filament offers a viable, energy-free alternative for mechanical endocapsular nucleus disassembly.
  • This novel technique presents a potential advancement in cataract surgery, minimizing ultrasound-related risks.