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

Corneal topography: a clinical model.

M Guillon, D P Lydon, C Wilson

    Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
    |January 1, 1986
    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

    Sexual Assault Nurse Examiner programs in the United States.

    Annals of emergency medicine·2000
    Same author

    The effect of ablation sequence and duration on lesion shape using rapidly pulsed radiofrequency energy through multiple electrodes.

    Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing·2000
    Same author

    The 1.3 A crystal structure of a biotin-binding pseudoknot and the basis for RNA molecular recognition.

    Journal of molecular biology·2000
    Same author

    Therapeutic approaches to the management of common baldness.

    International journal of clinical practice·2000
    Same author

    Evidence for evolutionarily conserved secondary structure in the H19 tumor suppressor RNA.

    Nucleic acids research·2000
    Same author

    The value and impact of violence prevention training in a home healthcare setting.

    Home healthcare nurse manager·2000
    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 proposes an ellipsoid corneal model based on keratometric and photokeratoscopic data from 220 eyes. The model aids in designing rigid corneal lenses and understanding the eye's optical system.

    Area of Science:

    • Ophthalmology
    • Optometry
    • Biomedical Engineering

    Background:

    • Understanding corneal shape is crucial for designing ophthalmic lenses and modeling the eye's optics.
    • Existing models may not fully capture the variability of corneal topography in a normal population.

    Purpose of the Study:

    • To develop an ellipsoid corneal model applicable to rigid corneal lens design.
    • To analyze the dioptric system of the eye using advanced computational models.
    • To compare central keratometric and photokeratoscopic measurements and assess corneal shape variations.

    Main Methods:

    • A keratometric photokeratoscopic study was conducted on 220 eyes from a normal population.
    • Data were analyzed to derive an ellipsoid corneal model.
    • Systematic differences between central keratometric and photokeratoscopic measurements were evaluated.

    Related Experiment Videos

    Main Results:

    • An ellipsoid corneal model was proposed, suitable for rigid lens design and eye modeling.
    • A statistically significant difference was found between central keratometric and photokeratoscopic measurements, though not clinically significant.
    • A notable proportion of corneas exhibited peripheral steepening, and corneal shape varied considerably within the population.
    • Peripheral and central astigmatisms were generally found to be similar.

    Conclusions:

    • The proposed ellipsoid corneal model provides a valuable tool for ophthalmic lens design and eye optics research.
    • Corneal topography exhibits significant individual variation, with peripheral steepening being a common characteristic.
    • The study highlights the importance of considering population variability in corneal shape for accurate optical modeling.