Retinal contour modelling to reproduce two-dimensional peripheral spherical equivalent refraction

Area of Science:

• Ophthalmology
• Optical Engineering
• Computational Vision

Background:

• Accurate peripheral spherical equivalent refraction (SER) mapping is crucial for myopia control research.
• Existing eye models require precise reproduction of the 2D SER distribution for validation.

Purpose of the Study:

• To propose and validate a novel computational method for locating retinal points to reproduce the 2D SER distribution.
• To assess the accuracy and efficiency of this method in realistic eye models.

Main Methods:

• Derived a linear relationship between SER and wavefront vergence at the exit pupil center.
• Developed a retinal point-locating algorithm based on this relationship.
• Validated the method by reproducing SER maps from emmetropic and myopic eye measurements.

Main Results:

• The proposed method accurately reproduced measured 2D SER maps in a realistic eye model.
• The method demonstrated high accuracy and low time-cost.
• Analysis revealed limitations of the general ellipsoid model in SER map reproduction.

Conclusions:

• The developed retinal-locating method significantly enhances the precision and accuracy of customized wide-angle eye modeling.
• This technique offers a valuable tool for myopia control research and optical eye modeling.