Comparison of vision through surface modulated and spatial light modulated multifocal optics.

Area of Science:

• Optics and Vision Science
• Biomedical Engineering
• Ophthalmic Technology

Background:

• Spatial-light-modulators (SLMs) are emerging as key components in adaptive optics (AO) for simulating optical corrections.
• Multifocal presbyopic corrections are a significant application area for AO systems.

Purpose of the Study:

• To compare visual perception through lathe-manufactured multifocal surfaces with SLM-simulated corrections.
• To validate the use of SLMs in AO visual simulators for presbyopic correction research.

Main Methods:

• A custom two-active-element AO visual simulator was developed.
• Lathe-manufactured multi-zone multifocal surfaces (2-4 zones, segmented) were compared with SLM-simulated phase maps of the same designs.
• Perceived visual quality was measured for both real and simulated corrections.

Main Results:

• High correspondence was found between perceived visual quality using real multifocal surfaces and SLM-simulated phase maps.
• Optical simulations accurately predicted differences in visual quality at far distances.
• Discrepancies were observed between optical simulations and perceived visual quality at intermediate and near distances.

Conclusions:

• SLMs can effectively simulate multifocal presbyopic corrections, yielding results comparable to physical optical surfaces.
• SLMs show promise as a versatile tool for research in adaptive optics and presbyopic correction.
• Further refinement of optical simulations may be needed to accurately predict visual quality at non-far distances.