Visual performance of phase alteration utilizing sub-elements lenses for potential myopia management

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• Spectacle lenses play a crucial role in vision correction and myopia management.
• Defocus Incorporated Multiple Segments (DIMS) lenses are a common control for evaluating novel lens designs.
• Assessing visual performance (VP) is key to understanding lens efficacy.

Purpose of the Study:

• To compare the visual performance (VP) of P.A.U.S.E. spectacle lenses against Defocus Incorporated Multiple Segments (DIMS) lenses.
• Evaluate objective and subjective visual parameters across different lens designs.

Main Methods:

• A randomized, single-masked study involving 48 participants (aged 18-41 years).
• Participants wore five P.A.U.S.E. lens designs (T1, T2, T4, T5, T6) and DIMS lenses.
• Visual acuity (VA) was measured (full-lens and treatment zone), alongside subjective ratings for near vision, night vision, and overall satisfaction.

Main Results:

• P.A.U.S.E. lenses (T2, T4, T5) showed significantly better full-lens binocular high-contrast visual acuity (HCVA) at 40 cm compared to DIMS.
• Four P.A.U.S.E. lenses (T2, T4, T5, T6) demonstrated superior HCVA, near vision clarity, and ease-of-reading through the treatment zone.
• Lens T2 received higher ratings for night vision and overall vision satisfaction than DIMS, while DIMS outperformed T1 in vision clarity.

Conclusions:

• Most P.A.U.S.E. spectacle lenses provided enhanced visual performance through their treatment zones compared to DIMS.
• Lens T2 exhibited better overall visual performance than DIMS, whereas DIMS showed better performance than T1.