WO2025003962 - METHOD FOR QUANTITATIVE EVALUATION OF CONTACT LENS EDGE LIFT BASED ON OCT IMAGES
National phase entry:
Publication Number
WO/2025/003962
Publication Date
02.01.2025
International Application No.
PCT/IB2024/056286
International Filing Date
27.06.2024
Title **
[English]
METHOD FOR QUANTITATIVE EVALUATION OF CONTACT LENS EDGE LIFT BASED ON OCT IMAGES
[French]
PROCÉDÉ D'ÉVALUATION QUANTITATIVE DE LA DÉFORMATION DE BORD D'UNE LENTILLE DE CONTACT SUR LA BASE D'IMAGES OCT
Applicants **
ALCON INC.
Rue Louis-D'Affry 6
1701 Fribourg, CH
Inventors
GU, Yeming
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
WANG, Yan
1733 Camassia Lane
Carlsbad, California 92011, US
HOSSEINI, Seyedhadi
6098 Park Leaf Walk
Buford, Georgia 30518, US
Priority Data
63/510,761
28.06.2023
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Translation |
|
Recalculate
* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1245 | |
| EPO | Filing, Examination | 6270 | |
| Japan | Filing | 596 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 11396 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A method for quantitively evaluating contact lens edge lift and distortion. The method includes the steps of scanning an edge of a contact lens, modeling the edge profile, determining a best-fit line over the modeled edge profile, calculating the slope of the best-fit line at a contact lens edge point, and further calculating a slope edge angle (ESA) as a function of the slope, wherein the ESA is a highly effective metric for capturing the contact lens edge-lift relative to the intended shape of the lens. The method may be used to provide design feedback, predict clinical fitting outcomes, and for quality control purposes.[French]
L'invention concerne un procédé d'évaluation quantitative de la déformation de bord et de la distorsion d'une lentille de contact. Le procédé comprend les étapes consistant à balayer un bord d'une lentille de contact, modéliser le profil de bord, déterminer une ligne de meilleur ajustement sur le profil de bord modélisé, calculer la pente de la ligne de meilleur ajustement au niveau d'un point de bord de lentille de contact, et calculer en outre un angle de bord de pente (ESA) en fonction de la pente, l'ESA étant un indice de mesure hautement efficace pour capturer la déformation de bord d'une lentille de contact par rapport à la forme prévue de la lentille. Le procédé peut être utilisé pour fournir une rétroaction de conception, prédire des résultats d'ajustement clinique, et à des fins de contrôle de qualité.