The term “sol” on your glasses prescription often refers to the sphere (SPH) value, which indicates lens power. A plus sign (+) shows long-sightedness (farsighted), while a minus sign (−) indicates short-sightedness (nearsighted). This helps determine the right prescription lens for your right eye (OD) and left eye (OS). In addition to “Sol,” your prescription … Read more
Sph, or sphere, measures the lens power in a glasses prescription. A positive Sph value shows that the person is farsighted. Prescription powers increase in 0.25 diopter steps. Therefore, a positive Sph power implies the power needed for vision correction, starting just above no correction, which is 0.00. Understanding your eye prescription is essential for … Read more
Single PD means pupillary distance. This measures the space from the center of one pupil to the center of the other. It is important for fitting prescription glasses and reading glasses. There are two types: distance PD for seeing far away and near PD for close-up tasks. Accurate measurements ensure better vision clarity and comfort. … Read more
Sph (sphere) shows the level of long-sightedness or short-sightedness. A positive number means long-sightedness, while a negative number means short-sightedness. Cyl (cylinder) indicates the lens strength needed to correct astigmatism. Higher values in both Sph and Cyl mean stronger prescription glasses for vision correction. “Cylinder” refers to the amount of astigmatism in your eye. Astigmatism … Read more
RRX on a glasses prescription shows the lens correction needed for each eye. OD indicates the right eye, and OS indicates the left eye. This prescription may include astigmatism correction, measured in diopters. It can specify single-vision or multifocal lenses to address nearsightedness, farsightedness, or prism correction needs. Another common abbreviation is “RX,” which indicates … Read more
A reading glasses prescription is like a standard eyeglasses prescription. It includes a sphere (SPH) number marked with a plus symbol (+). This SPH number shows the lens power needed for improving close-up vision. These lenses help you see nearby objects more clearly and comfortably. Strength is measured in diopters, often indicated with a positive … Read more
Prescription ready glasses are eyewear that can hold your eye prescription. You can customize them with personalized lenses at an optometrist. This type of eyewear offers both convenience and style. It is especially helpful for those who need vision correction while wearing sunglasses. When considering prescription ready glasses, it is essential to understand the different … Read more
The term “P2” on a glasses prescription refers to the lens power needed for the second eye. Each eye has specific values like Sphere (SPH) and Cylinder (CYL). A plus sign (+) shows farsightedness, while a minus sign (-) indicates nearsightedness. Always consult an eye care professional for more details. Glasses prescriptions also include other … Read more
The term “P1 BD” in a glasses prescription means a prism correction of 1 prism diopter with the base down direction for the right eye. Prism diopters help align the eyes. Other common terms are BU (base up), BI (base in), and BO (base out). Knowing these terms aids in understanding vision correction better. Understanding … Read more
Your Pupillary Distance (PD) is the measurement in millimeters (mm) between the centers of your pupils. This measure is essential for proper lens fitting. A correct PD ensures clarity and comfort by aligning the lenses with your eyes. This alignment is vital for effective vision correction. Measuring your PD can be done at home or … Read more