An aspheric lens usually carries a rationally symmetrical profile on an axis point creating a thinner lens and reducing spherical aberration. Aspheric lenses are ideal for heavy spherical and cylindrical prescriptions. High index lenses are often incorporated with aspheric designs creating a thin lightweight lens, considering aggressive prescriptions. Besides enhancing widened visual acuity in most cases, aspheric lenses may also create a better aesthetic appearance for patients with severe prescriptions by reducing magnification around the edges producing a more natural look as opposed to "Coke Bottle" eyes or "Tiny Eyes" effect. It is important to note that aspheric lenses should help aesthetically, but may not eliminate extreme magnification of the eyes.

A 610nm longpass filter is an optical filter that transmits light with wavelengths greater than 610nm while blocking shorter wavelengths. This filter is designed to provide high blocking at shorter wavelengths, typically with an optical density of several orders of magnitude, while still allowing the transmission of longer wavelengths with minimal attenuation.

HOYA Vision Care of the Americas makes and supplies ophthalmic lenses to Eye Care Professionals located within the United States, Canada, and South American countries. HOYA supplies a complete range of high quality lens designs, coatings and materials. More..

Augen Optics was founded by Dr. Antonio Machado over 20 years ago as a small optical laboratory producing plastic lenses in Mexico. Today, Augen is an international eyeglass lens manufacturer with comprehensive R&D, manufacturing and processing capabilities and a full line of proprietary More..