Lastly we need to decide on Lens Options:
Improves cosmetic appearance of glasses by allowing the prescription to be thinner and flatter than conventional non-aspheric lenses.
Makes the eyes more visible, as if lenses are not being worn or more transparent. Reduces reflections from lamps, overhead lights, and computer screen glare as well as car headlights when worn at night. Crizal Alize anti glare coating adds scratch resistance and a hydrophobic coating to repel dirt and smudges.
Transitions reduce the need for two separate pairs of glasses. These lenses are clear indoors and darken automatically in the presence of ultraviolet radiation. Transitions are important for children, who tend to spend more time outdoors than adults, resulting in increased UV exposure. It is important for parents to protect the eyes of their children, similar to applying sunblock to skin before outdoor activities. The drawback to transitions is that they are not suitable under daylight driving conditions. These lenses are offered in gray and brown tints.
Polarized lenses reduces glare in sunglasses.
Scratch Resistant Coating
Scratch coatings are added to lenses to help protect to surface of lenses from minor scratches. Since polycarbonate and trivex lenses are scratch resistant a coating does not need to be added to theses lenses.
Many different colored tints are available to added to your lenses such as brown, grey, blue, rose, etc that can help you achieve that cosmetic look or help with certain conditions such as fluorescent lighting sensitivity and possibly dyslexia.
Most plastic lenses do not come with UV coating so can be added to protect your eyes from the UV before we make them into sunglasses.
Edge Polish & Edge Tints
Edge polish can be added to lenses to make the edges of your lenses have a nice shine to them. Edge tints can be added to lenses to make them have interesting colors at the edge.