Yes, there are a number of different types of implants. The main classifications of implants are standard, aspheric, toric, and bifocal. The standard implant is provided by the Ontario Health Insurance Program (OHIP). This is a monofocal implant that can provide satisfactory vision but usually requires the aid of glasses to fine tune sight. The other implants are not provided by OHIP but can be purchased by the patient. These include: An aspheric implant can provide better quality of vision by reducing spherical aberration. This can reduce glare and usually provides better night vision. The aspheric implant is combined with an astigmatism reduction or control procedure to decrease the need for distance glasses by small incisions in the peripheral cornea. A toric implant, in addition to reducing spherical aberration and enhancing the quality of vision, can reduce astigmatism, and is the best choice in patients with higher degrees of astigmatism. The astigmatism correction of a toric implant is actually built directly into the implant and then rotated to a specific orientation in the eye. A bifocal implant is a multifocal implant that can provide both distance and near without glasses. There may be some glare and/or halos with this type of implant. These symptoms tend to diminish with time.