Temporal multiplexing with adaptive optics for simultaneous vision

Area of Science:

• Ophthalmic optics
• Visual science
• Biomedical engineering

Background:

• Multifocal contact lenses and intraocular lenses aim to provide clear vision at multiple distances.
• Individual visual aberrations can significantly impact the performance of optical correction devices.

Purpose of the Study:

• To present and validate a methodology for generating simultaneous vision using a deformable mirror.
• To simulate and objectively assess various bifocal lens designs under dynamic conditions.
• To investigate the influence of corneal aberrations on bifocal lens performance.

Main Methods:

• A deformable mirror was employed to rapidly switch between two vergences (0 D and -2.5 D) at 50 Hz.
• Simulations of different bifocal designs, including toric and spherical aberration combinations, were performed.
• Objective assessment of through-focus curves was conducted.

Main Results:

• The methodology successfully generated simultaneous vision with dynamic vergence changes.
• Typical corneal aberrations in a 60-year-old subject altered the objective through-focus curves of an ideal bifocal lens.
• The study demonstrated the impact of ocular aberrations on optical performance.

Conclusions:

• The developed methodology provides a robust platform for evaluating multifocal optical designs.
• Understanding the effect of corneal aberrations is crucial for optimizing multifocal lens performance.
• This approach can aid in the investigation of subjective visual performance for novel lens designs.