The term ‘inter’ on a glasses prescription indicates intermediate vision correction. This type of prescription helps those who struggle to see clearly at arm’s length. It is especially beneficial for detail-oriented work, such as using a computer, while also addressing issues related to near-sightedness and providing visual correction. The “Inter” value is expressed in millimeters … Read more
A glasses prescription shows a table with two rows for the right eye (OD) and the left eye (OS). Each row includes three columns: Sphere (SPH) for lens power, Cylinder (CYL) for astigmatism, and Axis for the cylinder’s orientation. This clear format helps provide accurate vision correction. Next, you will see numbers that represent your … Read more
Dual Pupillary Distance (DPD) measures from the bridge of the nose to the center of each eye. Accurate DPD is crucial for fitting lenses correctly. This measurement addresses the natural symmetry of the eyes, ensuring comfort and visual clarity in eye glass prescriptions. The importance of measuring DPD is significant. A proper fit can prevent … Read more
DVO (Distance Vision Only) lenses help you see far away clearly. They are designed for distance clarity. NVO (Near Vision Only) lenses assist with reading, while intermediate lenses are for computer use. Together, these lens types address different vision needs in prescription glasses. Understanding your prescription is essential for choosing the right glasses. A DVO … Read more
Distance PD, or distance pupillary distance, is the measurement for seeing objects at a distance. It ensures that your lenses match your pupils for clear vision. Distance PD is usually 3 to 4 mm larger than Near PD, which is used for tasks that require near vision, like reading. Proper measurement is crucial for effective … Read more
Distance acuity on a glasses prescription measures your ability to see details at a distance. A score of 20/20 represents normal vision, while 20/100 indicates you need to be at 20 feet to see what someone with normal vision sees at 100 feet. Vision clarity is crucial for eye health and daily activities. Understanding your … Read more
The term ‘Dist PD’ on a glasses prescription stands for distance pupillary distance. It measures the space between your pupils when focused on distant objects. ‘Near PD’ measures the same distance for close-up tasks and is usually 3 to 4 mm smaller. Knowing these measurements ensures proper lens fitting for your glasses. The Dist measurement … Read more
A glasses prescription featuring ‘D’ means ‘diopter’, which shows the lens power needed for vision correction. A positive diopter value indicates farsightedness, while a negative value indicates nearsightedness (myopia). For example, -1.00 means 1 diopter of nearsightedness, which is important for clear vision. The distance in DIAOP indicates the range from your eyes to the … Read more
D1 in a glasses prescription indicates the lens’s front surface strength. Eyeglass prescriptions use diopters to measure their strength. For example, a prescription of -1.00 signifies mild nearsightedness. Knowing these terms aids in choosing the right lens customization for your vision needs. Each eye usually has its own distinct D1 value, reflecting the specific prescription … Read more
“BI stands for Base In on prescription glasses. It shows where the prism should go to fix double vision. The prism aligns the images from both eyes. Correct placement is crucial for effective vision correction. This ensures comfort and clarity for the wearer.” In prescriptions, the value assigned to BI determines how much adjustment is … Read more