Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Focusing of Light in the Eye

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...

You might also read

Related Articles

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

Sort by

Same author

How to Give Your Workload Policy SWAG: Creation of a Student Workload Advisory Group to Reduce Workload Hour Exceedances for Preclerkship Medical Students.

Academic medicine : journal of the Association of American Medical Colleges·2026

Same author

Illuminating Blurry Vision: Visualization of Corneal Protein Deposition With Immunofluorescence in Two Illustrative Case Reports.

Case reports in pathology·2026

Same author

Correction: Community-based participatory design of a decade: the FAITH! Cardiovascular Health and Wellness Program.

Frontiers in public health·2026

Same author

Suzetrigine for the Treatment of Acute Pain: Comment.

Anesthesiology·2025

Same author

Community-based participatory design of a decade: the FAITH! Cardiovascular Health and Wellness Program.

Frontiers in public health·2025

Same author

Indications and complications associated with centrifuge-based therapeutic plasma exchange - a retrospective review.

BMC nephrology·2025

Search research articles

Related Experiment Video

Updated: May 31, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Long-term visual acuity and initial postoperative refractive error in pediatric pseudophakia.

R Scott Lowery¹, Todd G Nick, Julie B Shelton

¹University of Arkansas for Medical Sciences, Little Rock, AR 72201, USA. LoweryRobertS@uams.edu

Canadian Journal of Ophthalmology. Journal Canadien D'Ophtalmologie

|June 29, 2011

Summary

This summary is machine-generated.

Children receiving intraocular lens (IOL) implants for cataracts during the amblyogenic period achieved better long-term visual acuity when initial postoperative refractive error was between +1.75 D and +5.00 D in unilateral cases.

More Related Videos

$Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter$

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Related Experiment Videos

Last Updated: May 31, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

$Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter$

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Area of Science:

Ophthalmology
Pediatric Ophthalmology
Refractive Surgery

Background:

Cataract extraction with intraocular lens (IOL) implantation in children during the amblyogenic period presents unique challenges for visual development.
Long-term visual outcomes and the influence of initial refractive error on these outcomes require further investigation.

Purpose of the Study:

To evaluate the long-term best-corrected visual acuity (BCVA) in children following cataract extraction and IOL implantation.
To determine if initial postoperative refractive error correlates with long-term BCVA in this pediatric population.

Main Methods:

Retrospective chart review of 36 eyes from 26 patients who underwent cataract extraction with IOL implantation.
Inclusion criteria included a minimum 2-year follow-up, age under 8.5 years at IOL implantation, and absence of congenital glaucoma or significant trauma.

Main Results:

A significant nonlinear relationship was observed between initial pseudophakic spherical equivalent (SE) and long-term BCVA in unilateral cases (p < 0.001).
Unilateral cases with an initial SE between +1.75 D and +5.00 D demonstrated superior long-term BCVA compared to those outside this range.
No significant correlation was found in bilateral cases.

Conclusions:

For pediatric cataract surgery with IOL implantation, aiming for mild early postoperative hyperopia (within +1.75 D to +5.00 D SE in unilateral cases) may optimize long-term visual acuity.
Individual patient factors and age should be considered when targeting refractive outcomes.