It's always a positive value and is typically the same for both eyes. A prescription that indicates an “Add” power can be used to make single vision reading. Single Vision · Progressive · 1. OD (Oculus Dexter), OS (Oculus Sinister) OD and OS are key to reading any eyeglasses prescription, regardless of the correction. You will see numbers listed under OS (left eye) and OD (right eye) in your eye prescription. In general, the higher the number — the poorer your eyesight. A “. Understand your prescription · SPH. Your power, plus (+) or minus (-). · CYL. Indicates the amount of astigmatism.. · AXIS. Indicates the location of astigmatism. What do the letters, numbers and symbols on my prescription mean?
+ sign — A plus sign may appear like + or + on your vision prescription, which means that your lenses will help correct farsightedness. These lenses. The higher the number, the stronger the prescription lenses required. This can influence your choice of frames as the higher the prescription, the greater the. OS stands for "oculus sinister", or your left eye. If both of your eyes need the same prescription, you'll sometimes see "OU", which stands for "oculus uterque". If you see SPH, this tells you that the number is sphericalequal in all the sectors of the eye's measurements. For example, if your OD has an SPH of This means that the patient is nearsighted with 2 diopters of nearsightedness in the right eye and 2 and ¾ in the left. Cylindrical Correction (CYL). The next. LE or OS (Left Eye): Refers to your left eye prescription · RE or OD (Right Eye): Refers to your right eye prescription · SPH (Sphere of the eye): The lens'. What do the numbers on my prescription mean? Your prescription may include the following: SPH, CYL, Axis, ADD and Pupillary Distance (PD). Glasses Prescription. The ADD value is also referred to as a "Near Addition" or "Reading Addition". This is always a "+" value in steps. It is the amount of magnification. A plus sign or no symbol before the number means you are farsighted and could be in need of reading glasses. Usually, the worse your eyesight is, the further. Your optical prescription · Sph (sphere) represents how long or short sighted you are. · Cyl (cylinder) represents the amount of astigmatism present. · Axis. Numbers under the “Prism" or “Base” column indicate the need for special lenses that correct eye alignment problems. Keep reading for more information on these.
In addition to the intensity of the diopter measurement, these numbers will also determine how thick your lenses need to be. For example, a reading of + A minus sign before the number indicates that you are nearsighted, while a plus sign means that you're farsighted. Lens power is measured in diopters. The. The sphere measure tells the eye doctor where your eye focuses light: on the retina (normal vision), in front of the retina (myopia), or behind the retina . When you look over your prescription, if you see smaller values like +/, you can see that this part of your vision needs some correction. Larger values. The type of Rx glasses may be noted on a prescription, such as DV [Distance Vision/nearsightedness] and NV [Near Vision/reading]. Example of progressive or. Many of the abbreviations in glasses and contact lens prescriptions are associated with numbers. Each number indicates information about your eye, vision, and. How to Read Glasses Prescriptions · OS (Oculus Sinister): Refers to your right eye · OD (Oculus Dextrus): Refers to your left eye · OU (Oculus Uterque): Refers to. Your prescription is a set of numbers and terms that describe the specific vision correction you need. Whether you're nearsighted, farsighted, or have. They are abbreviations for oculus dexter and oculus sinister, which are Latin terms for right eye and left eye. Your eyeglass prescription also may have a.
OD stands for your right eye and is the sphere. is the cylinder and the cylinder has its axis at 90 degrees. is the added power in this. The basics of an eye prescription are a series of numbers for your right eye (R), and your left eye (L). All numbers will be written in increments; The. In general, there are three main aspects to a prescription: spherical power, astigmatism, and reading or add power as seen below. There is also a section for. Eye-deology Vision Care Your Eyeglasses Prescription: Parameters & Values · OD refers to the right eye. · OS refers to the left eye. · Sphere is the amount of lens. A written prescription usually includes the following specifications: base curve, diameter, power (or sphere), and then additional figures for Cylinder and Axis.