between - Hoya Vision

FAQ

Is it OK to switch back and forth between contacts and glasses?

Vision can also become cloudy when contacts are worn for too long, and the eyes get overly dry. The reason for this difference is that whenever someone wears glasses, image size is being introduced in to the equation. When someone is wearing contact lenses there is no minimizing or maximizing of images. Each individual is…

FAQ

How can you tell the difference between polycarbonate and plastic lenses?

Polycarbonate is a thermoplastic that starts as a good material by means of small pellets. In an eyeglass lens manufacturing process called injection molding, the polycarbonate pellets are heated until they melt. The liquid polycarbonate is then rapidly injected into lens molds, compressed under ruthless, and cooled to create a finished lens product in a…