Model: Hoya (Japan), Gemetric, 20D, diffractive, trifocal, yellowish

Gemetric IOL (Hoya) is a diffractive multifocal intraocular lenses with diffractive rings only in the center.

Gemetric lenses (Hoya) appear like trifocal IOLs. At 6 meters, USAF resolution target appears slightly hazy compared to monofocal IOLs. As the target gets closer, the blurriness gradually increases, clearing again at about 90 cm, then clearing again at about 50 cm

This video was taken at night, using a mobile model eye. Compared to a monofocal IOL, halos are visible around bright lights (traffic lights, headlights, taillights) with Gemetric IOL (Hoya). This is a typical phenomenon seen with diffractive multifocal IOLs. However, compared to other diffractive multifocal intraocular lenses, the halo around the lights appear to be slightly less. This is probably because the diffraction rings are located only in the center.

Compared to monofocal IOLs, a distant buildings appears slightly hazy, as if in a fog with Gemetric IOL (Hoya). This is a typical phenomenon seen with diffractive multifocal IOLs. It appears slightly yellow due to the color of the lens.

With Gemetric IOL (Hoya), halos around bright lights are more noticeable than with a monofocal IOL at night. This is typical of diffractive multifocal IOLs. However, compared to other diffractive multifocal intraocular lenses, the halo around the lights appear to be slightly less. This is probably because the diffraction rings are located only in the center.

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