Eye Exam Basics: Understanding Prescription Numbers and Vision Tests
Vision health is an essential part of overall well-being, yet many people overlook routine eye exams or feel confused when reading their prescription afterwards. If you have ever wondered what those letters, numbers, and symbols mean—or what exactly happens during an eye exam —you’re not alone. Understanding your eye exam results can help you take control of your eye health and make informed decisions about glasses, contact lenses, and treatment options. In this guide, we’ll break down the basics: prescription numbers, vision tests, and what they mean for your eyesight. Why Eye Exams Matter A comprehensive eye exam does more than determine if you need glasses. It can detect early signs of eye conditions such as glaucoma, cataracts, and macular degeneration. Eye exams also check visual coordination, focusing ability, and provide insights into overall health issues like diabetes and high blood pressure. Think of an eye exam as preventive care—not just a vision check. Understa...