Optical terminology is not something that we think about everyday. Whether you're buying glasses, trying contact lenses, or just had an eye exam, you've probably heard terms like “astigmatism,” “PD,” or “progressive lenses” tossed around. But what do they all actually mean? This glossary breaks down 50+ common optical terminology in simple, everyday language. We’ve also added helpful visual descriptions to give you a clearer picture (literally). And if you still have questions, don’t worry—Malaya Optical’s experienced optometrists are always ready to explain things in person. Just book an appointment and we’ll guide you every step of the way. A-Z Optical Terms (Simplified and Explained) 1. Acuity (Visual Acuity) How clearly you can see. It’s usually measured by reading letters on an eye chart. If you’ve ever heard someone say…
