Work

On the role of biconic surfaces in modelling astigmatic eyes

Year: 2025

Type: article

Abstract: This study provides a detailed description of biconic surfaces, focusing on their critical properties and utility in modelling astigmatic eyes. It examines general aspects, including implicit or explicit equations, azimuthal variations as well as average values of their geometrical parameters, and matrix-vector formulation. Additionally, the study explores the properties of these surfaces under conditions where the principal curvatures are closely matched, reflecting the typical characteristics of astigmatic eyes. The derived expressions closely align with theoretical predictions, and these conditions are successfully tested on 56 healthy corneas. This work expands current knowledge about biconic surfaces and offers a deeper understanding of the optical features of astigmatic eyes.

Source: Optics Express

DOI: 10.1364/oe.558960

Authors: Iñaki Blanco-Martínez, Rafael Navarro, Miguel Faria-Ribeiro

Institutions: Consejo Superior de Investigaciones Científicas, Universidad de Zaragoza

Language: English

Topic: Ophthalmology and Visual Impairment Studies

Subfield: Epidemiology

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: H2020 Marie Skłodowska-Curie Actions