Most stores have a printed "eye chart" near the display. Hold it about 14 inches away and try reading the lines without glasses. The smallest line you can read clearly will point you toward the right strength.
OTC readers are great for basic magnification, but they aren't a substitute for a professional exam. You should see an optometrist if: You have (OTC glasses won't correct the blur). how to buy reading glasses over the counter
If you need them for a monitor that sits further away than a book, you usually need a lower strength (e.g., if you use +2.00 for books, try +1.50 for the computer). Most stores have a printed "eye chart" near the display
Look through the lenses at a flat surface (like the floor). If the lines look wavy or distorted, the lens quality is poor. When to See an Eye Doctor OTC readers are great for basic magnification, but
If you still have to push the text away to see it, the power is . 3. Consider Your Use Case Where will you use them most?
For high-detail work like sewing or model building, you might want a slightly higher strength than your standard reading pair. 4. Check for Comfort and Quality