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 Experiment Videos

Calculation method for retinal irradiance from extended sources

C Campbell1

  • 1Humphrey Instruments Inc., San Leandro, CA 94577-0700.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|July 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Analysis of primary care electronic health record data of people living with hepatitis B virus: infection and hepatocellular carcinoma risk associated with socio-economic deprivation.

Public health·2023
Same author

"Oh! How Modern! And... Are You Ok with That?": Consensually Non-Monogamous People's Experiences When Accessing Sexual Health Care.

Journal of sex research·2023
Same author

Whole-genome sequencing to investigate transmission of SARS-CoV-2 in the acute healthcare setting: a systematic review.

The Journal of hospital infection·2023
Same author

Guillain-Barré Syndrome and Unilateral Optic Neuritis Following Vaccination for COVID-19: A Case Report and Literature Review.

Neuro-ophthalmology (Aeolus Press)·2022
Same author

Overall survival in the OlympiA phase III trial of adjuvant olaparib in patients with germline pathogenic variants in BRCA1/2 and high-risk, early breast cancer.

Annals of oncology : official journal of the European Society for Medical Oncology·2022
Same author

Cutaneous adverse drug reactions to fixed-dose combination treatments for TB.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2022
Same journal

Mesopic Illumination in Natural Environments: Implications for Myopia Research.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Axial Length Growth Reference Curves and LMS Parameters for Japanese Children and Adolescents Aged 4-20 Years: The TMM BirThree Cohort Study.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Effect of Switching Myopia Control Strategies on Axial Elongation in Children with Poor Response to Highly Aspherical Lenslet Therapy.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Quantifying the Role of Longitudinal Chromatic Aberration and Age in Night Vision Disturbances.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Impaired Rod-Mediated Vision is the Functional Hallmark of Ageing and Early and Intermediate Age-Related Macular Degeneration.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Analytical Performance, Spatial Dynamics and Clinically Meaningful Change Thresholds for Automated Non-invasive Tear Film Assessment Using the Oculus Keratograph 5M.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
See all related articles

This study presents a new method for calculating retinal irradiance from any light source. The technique accounts for the eye's refractive state and source distance, applicable to both focused and unfocused scenarios.

Area of Science:

  • Ophthalmology
  • Optical Engineering
  • Biophysics

Background:

  • Accurate retinal irradiance calculation is crucial for understanding light-induced retinal damage and for designing optical instruments.
  • Existing methods may not fully account for the complexities of the human eye's optical system or varying source distances.

Purpose of the Study:

  • To develop and present a comprehensive method for calculating retinal irradiance from extended light sources.
  • To incorporate the eye's refractive state and source distance into the calculation.
  • To provide practical examples for both emmetropic and ametropic eyes.

Main Methods:

  • A novel mathematical model was developed to compute retinal irradiance.
  • The model integrates parameters describing the extended source, the eye's optical properties (refractive state), and the distance between the source and the eye.

Related Experiment Videos

  • The method is validated with theoretical examples.

    • Main Results:

    • The proposed method provides a robust calculation of retinal irradiance for focused and unfocused extended sources.
    • The refractive state of the eye significantly influences the calculated retinal irradiance.
    • Source distance is a critical factor affecting irradiance levels on the retina.

    Conclusions:

    • The presented method offers a more accurate and versatile approach to quantifying retinal irradiance.
    • This tool is valuable for research in phototoxicity, vision science, and ophthalmic device development.
    • The inclusion of refractive error and source distance enhances the applicability of the method in diverse real-world scenarios.