Buy Readers - How To
If you’re buying readers specifically for computer use, you might need a than what you use for printed books. Because monitors are usually further away (20+ inches) than a book (14 inches), a +1.25 might be better for the office even if you use a +1.75 for novels. Look for "Blue Light Blocking" coatings if you spend hours staring at a screen. 4. Check the Fit and Style
The entire lens has magnification. Best for long sessions of reading a book or tablet.
Over-the-counter readers are "one size fits all," meaning both lenses have the same strength. You should see an eye doctor for a prescription if: how to buy readers
You experience significant eye strain or blurred vision even with readers.
Your eyes require different strengths (e.g., your left eye is +1.00 but your right is +2.00). If you’re buying readers specifically for computer use,
You have , which standard readers do not correct.
If you can’t find a chart, strengths usually correlate with age: Age 40–45: +0.75 to +1.00 Age 45–50: +1.00 to +1.50 Age 50–55: +1.50 to +2.00 Age 60+: +2.50 and up 2. Choose Your Lens Type Over-the-counter readers are "one size fits all," meaning
Most retailers provide a printable diopter chart. Hold it about 14 inches away and see which line of text is the smallest you can read clearly.