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

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

You might also read

Related Articles

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

Sort by
Same author

Prototype optofluidic switchable optical element.

Optics express·2026
Same author

Digitized mini optofluidic element and its application to ophthalmic lenses for presbyopia correction.

Optics express·2021
Same author

IOL with square-edged optic and reduced dysphotopsia.

Optometry and vision science : official publication of the American Academy of Optometry·2011
Same author

New bi-sign aspheric IOL and its application.

Optometry and vision science : official publication of the American Academy of Optometry·2011
Same journal

Light adjustable lens implantation with cataract surgery in eyes with macular pathology.

Journal of cataract and refractive surgery·2026
Same journal

Comment on: Use of intracameral antibiotics prophylaxis in patients with posterior capsule rupture during cataract surgery: systemic review and meta-analysis.

Journal of cataract and refractive surgery·2026
Same journal

Dehydration and Rehydration Behavior of Ultra-High-Fluence Extracorporeal Cross-Linked Corneal Allogenic Intrastromal Ring Segments (ECO-CAIRS).

Journal of cataract and refractive surgery·2026
Same journal

Multimodal Deep Learning for Predicting Postoperative Vault and Selecting ICL Sizes Using AS-OCT and UBM Images.

Journal of cataract and refractive surgery·2026
Same journal

Reply: Evaluating large language models vs residents in cataract and refractive surgery: comparative analysis using the American Academy of Ophthalmology Self-Assessment Program.

Journal of cataract and refractive surgery·2026
Same journal

Comment on: Evaluating large language models vs residents in cataract and refractive surgery: comparative analysis using the American Academy of Ophthalmology Self-Assessment Program.

Journal of cataract and refractive surgery·2026
See all related articles

Related Experiment Video

Updated: May 28, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Light distribution in diffractive multifocal optics and its optimization.

Valdemar Portney1

  • 1Vision Advancement LLC, Newport Coast, California 92657, USA. vidadv@cox.net

Journal of Cataract and Refractive Surgery
|October 25, 2011
PubMed
Summary
This summary is machine-generated.

A new geometrical model analyzes light distribution in multifocal intraocular lenses (IOLs). This model aids in optimizing diffractive optics for improved visual outcomes by minimizing light loss.

More Related Videos

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics
09:00

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
06:55

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Published on: June 6, 2017

Related Experiment Videos

Last Updated: May 28, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics
09:00

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
06:55

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Published on: June 6, 2017

Area of Science:

  • Ophthalmology
  • Optical Engineering
  • Materials Science

Background:

  • Diffractive optics are utilized in multifocal intraocular lenses (IOLs) to provide vision at multiple distances.
  • Understanding light distribution is crucial for optimizing the performance of these IOLs.

Purpose of the Study:

  • To extend a geometrical model for diffraction efficiency to multifocal optics.
  • To develop formulas for analyzing light distribution for far and near vision in multifocal IOLs.
  • To apply these formulas for optimizing multifocal IOLs and their diffraction efficiency.

Main Methods:

  • Expanded a geometrical model, initially for kinoforms, to multifocal optics.
  • Developed analytical definitions for light split between far and near images.
  • Quantified light loss to other diffraction orders.

Main Results:

  • The geometrical model provided a clear interpretation of light distribution in diffractive multifocal IOLs.
  • Introduced curve-fitting formulas for analytical definitions of light split (far, near) and light loss.
  • Demonstrated applications, including analyzing light-split changes with wavelength.

Conclusions:

  • Formulas are valuable for interpreting diffraction efficiency based on physical characteristics like groove blaze heights and light wavelength.
  • The model and formulas can guide the optimization of multifocal diffractive optics to minimize light loss.