Optical Design

Design for Comfort 

Aberrations depth-of-field design – when looking far and near, visual field is still bright and clear.
Uniform thickness design – accurate image positioning, sharp vision without drift.
Lens D/S ratio (dia./sag.) design – wear without lens-tight feeling, take good care of your eyes.
Ultra-thin lens center design – improves oxygen permeability and reduces the risk of eye diseases.
Tear-guiding design (Chisel type)– smooth tear circulation, moisturizing and non-dry after wearing for a long time.
Thin peripheral edge design - comfortable to wear, reducing symptoms of lens awareness.

3D Modeling Technology

Building the lens model by using 3D modeling technology to perfect the surface design for ergonomic and comfort purpose.


Optical Design

Comfortable Wearing

The ideal lens sliding can provide stable tear exchange, and the Hope Vision lens can maintain the tear balance and stability, even for a long wearing time, it is still comfortable and moist.

*The following is the test comparison of tear break-up time when the tester with bare eye and wears Hope Vision lenses and other brands of lenses (the longer the number of seconds, the better the eye moisture)

5% Level TBT
No Wearing7.4s
Wearing HopeVision6.1s
Wearing Brand J2.7s
Wearing Brand B1.6s

Third Party Report

According to Brien Holden, a well-known international clinical laboratory institution, Hope Vision's lenses surpass the standards of major international manufacturers in terms of edge shape design and moisture retention. The wearable time for up to 12 hours without dryness.


Optical Design