Astigmatism is where the eye is not completely spherical but shaped more like a football. CYL or cylinder is the degree of how flat your eye is. The higher the. The term sphere is used because the correction of either the farsightedness or nearsightedness is equal across all the meridians of your eye, or spherical. ODisthespherepower.Add+Resultantis+ ++=+ Thesetwoprescriptionshavethesame. OD, OS and OU · VP or Work · VL or Distance · Intermediate Vision (VI) · Sphere (SPH) · Cylinder (CYL) · Axis · Addition (Add). An empty box means there is no astigmatism and your eyes are perfectly spherical. A low number like means your eyes are not quite round and a higher.

, , +, +, +, +, +, +, +, + The spherical equivalent is calculated to simplify the prescription by averaging the. The values under the column “Sphere (SPH)” indicate the amount of lens power, measured in diopters (D), prescribed to correct your nearsightedness or. **Trisha. I was hoping for some help interpreting my Rx. The OD sphere is +, cylinder and axis is Sphere, and then for AXIS and 24 for CYL/.** Sph (sphere). The spherical part of your prescription, can be a plus or minus value. A plus (+) indicates that you are long-sighted, which means objects. farsightedness or nearsightedness. It will also explain what OD, OS, sphere, cylinder and axis mean in your eyeglass prescription. Enter the Sphere and Cylinder values from your prescription into the Lens Calculator below and click the Calculate button to determine which of our lenses. OD - Right eye; OS - Left eye; OU - Both eye. SPH (Sphere). The power required , select - in the column. or - , select - in the. Sphere (SPH): The numbers in this section correct myopia The values are usually written in increments of diopters. Cylinder (CYL). Vision Prescription Abbreviations & Terms, Explained · OD and SD · S, SPH or Sphere · C or Cylinder · Axis · Add · Prism. Cylinder (CYL): The cylinder will always be a minus number that increases in measures of Much like the power/sphere figure that is shown on all. This is always "+" value in steps and the same value for both eyes. The result of this addition is the new sphere of power. if the original.

If you see a number like or +, it is understood that your doctor means or +, respectively. Also, an axis of 5 (or 05) is the same as ; 90 is. **Sphere. The sphere is the power add to correct myopia, hyperopia or astigmatism. · Addition. This is the prescribed value for progressive presbyopic lenses. I had exams on the missing years and received new glasses, but wasn't provided with the prescriptions. OD Sphere + Cylinder Axis 17 Add +** OD = (Change in Sphere Base to Sphere New) + ½ (Change in Cylinder OD = (+) + ½ (+). OD = + OS = (+ to +)+ ½ ( to ). SPHERE” power. It is common for the doctor to leave out the decimal points. A number like or + is the same as or +, respectively. Cylinder (CYL). Sphere (SPH): The sphere refers to the amount and type of prescription you A number like or + is the same as or +, respectively. Which one? Right / Left Sphere: + / + Cylinder: The absolute value of the sphere number is the reciprocal of the diameter. If you see a number like or +, it is understood that your doctor means or +, respectively. or cyl = CYLINDER power; the amount of astigmatism. The sphere part is a different part of the prescription; you should adjust it only after you put the cylinder and see which gives you the best vision.

The sphere value range is usually between + and , in steps. The unit of measure of spherical values is DS (Dioptres Sphere). In some. It is calculated by substracting the far distance Sphere from the near distance Sphere. OD: +2,50 OS: +3, It often occurs that each eye needs an. OD(Right eye): PL, , 83, OD(Left eye): , , , PD, I have SPHERE/SPH on My Prescription. This shows the lens power, measured. Cylinder (CYL): The cylinder will always be a minus number that increases in measures of Much like the power/sphere figure that is shown on all. corresponding lens parameters. Transposition Calculator. Converts Plus to Minus Cylinder Form. Sphere. Cyl. Axis. Transposed Sphere. Transposed Cyl. Axis.

remembering to add D of spherical power (to maintain spherical equivalent). ▫ If the patient chooses the red dot, remove +D of cylindrical power and.

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