ADD (additional power) indicates the extra magnifying power needed in the lower section of multifocal lenses. It helps correct presbyopia, which makes close vision challenging. If you need bifocal or progressive lenses, the ADD value will be shown as a number in your glasses prescription. Typically, the ADD value is expressed in diopters. A higher … Read more
The average prescription for reading glasses usually ranges from +0.75 to +2.50 diopters. As you age, your prescription may increase. For example, a +1.00 diopter lens aids near vision for reading small print, like a book or phone screen. Regular eye exams help maintain accurate prescriptions for your vision needs. To determine your perfect strength, … Read more
Single vision glasses have lenses that correct one type of vision problem, like nearsightedness or farsightedness. They offer clear vision at either a distance or close up, but not both. These prescription glasses are widely used for people with specific vision correction needs. Single vision lenses are beneficial because they offer clear vision without distortion. … Read more
The three columns in your prescription are Sphere (SPH), Cylinder (CYL), and Axis. Sphere (SPH) shows the power needed for single vision correction. Cylinder (CYL) measures astigmatism correction. Axis defines the lens angle for astigmatism. Knowing these values helps ensure accurate lens fitting for clarity and proper vision. The cylinder value addresses astigmatism, a condition … Read more
{Sphere (SPH) on your eyeglass prescription shows the lens power needed for nearsightedness or farsightedness. It uses diopters (D) as a unit of measurement. A positive value corrects farsightedness, while a negative value corrects nearsightedness. Sphere indicates a spherical lens that is uniform across the eye’s surface.} Understanding the sphere measurement is crucial for selecting … Read more
SG 15 in an eyeglass prescription refers to a lens power designation for vision correction. It is shown in the sphere (SPH) column, which indicates the strength of the lenses. A minus sign (−) means the prescription corrects nearsightedness. For a complete understanding, consult your eye care professional. Patients should also consider their lifestyle and … Read more
In glasses prescriptions, “OD” means Oculus Dexter, which refers to the right eye. “OS” means Oculus Sinister, indicating the left eye. “OU” stands for Oculus Uterque, representing both eyes. These abbreviations assist eye care professionals in delivering precise measurements for effective vision correction. Each prescription contains specific values for both eyes. For example, the spherical … Read more
Rx type glasses prescriptions outline the lens power needed for vision correction. Key elements include sphere for nearsightedness or farsightedness and numbers for astigmatism. It may be single vision for one distance or multifocal for various distances. Important abbreviations are OD for the right eye, OS for the left eye, and OU for both. Pupil … Read more
To choose prescription dive glasses, focus on lens quality, including UV protection from harmful rays and an anti-fog coating for clarity. Ensure a comfortable fit and assess material durability. Accurate prescriptions are crucial for optimal underwater vision. Prioritize comfort, fit, and prescription accuracy for the best experience. Next, lens material impacts your diving experience. Opt … Read more
Prescription glasses for short vision, or myopia, use concave lenses, known as minus lenses. These lenses bend light outward to direct it correctly onto the retina. A vision test by an optometrist is crucial for finding the right prescription. This ensures improved visual clarity for those with myopia. Several options exist for myopia correction through … Read more