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Focal lengthof lensformula

MyDay is a daily disposable lens by CooperVision, manufactured with their exclusive Smart Technology. This technology takes the best features of hydrogel lenses with the best of silicone hydrogel lenses to offer a unique level of comfort and clarity of vision for daily lens wearers. This advanced material allows more oxygen to reach your eyes while reducing the amount of silicone needed, leaving more space in the lens design for built-channels of moisture. This means that the lenses are naturally adept at retaining water so they can keep your eyes feeling hydrated and irritation-free for as long as you're wearing them.

Focal length formulafor mirror

Light rays from a beam source, initially in air, are incident on a material of different index of refraction (position is given in centimeters). You can change the curvature of the surface of the material as well as the index of refraction. Restart.

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