Reading glasses and everyday glasses differ primarily in the strength of the lenses and the distance at which they are designed to provide clear vision.
Reading glasses have lenses that are specifically designed to magnify close-up objects, making it easier to see small print or fine details. They are typically available in different strengths, ranging from +1.00 to +4.00 diopters or higher, to correct presbyopia, the age-related loss of near vision. Reading glasses are usually meant to be worn only when performing close-up tasks such as reading, writing, or doing crafts.
On the other hand, everyday glasses, such as prescription glasses, are designed to correct vision problems at all distances, including distance vision, intermediate vision (for tasks like computer use), and near vision. Prescription glasses have lenses that are tailored to each individual's specific vision needs, and can be customized to correct nearsightedness, farsightedness, astigmatism, or other vision problems. Unlike reading glasses, they are designed to be worn throughout the day.
Overall, the main difference between reading glasses and everyday glasses is that reading glasses are designed to magnify close-up objects, while everyday glasses are designed to correct vision problems at all distances.