What does SPH CYL and axis mean?

What does SPH CYL and axis mean?

What does Sphere, Cylinder and Axis mean? ‘Sphere’ is basically a measure of how strong your prescription needs to be. The number marked ‘axis’ describes the orientation of astigmatism. It will be a number between 1 and 180. The number under ‘cylinder’ provides the lens power needed to correct the astigmatism.

What does SPH mean in eye prescription under cylinder?

No cylinder power or axis, which means no astigmatism is present. This doctor chose to write “SPH,” to confirm the right eye is being prescribed only spherical power.

What is SPH in eye check up?

The abbreviation SPH stands for Sphere. It describes the amount of lens measured in diopters that you need for good vision. The term means that the correction for your sight is spherical.

What does axis mean on an eye test?

The axis indicates the angle (in degrees) between the two meridians of an astigmatic eye. The axis is defined with a number from 1 to 180. The number 90 corresponds to the vertical meridian of the eye, and the number 180 corresponds to the horizontal meridian.

What does DS and SPH mean on my eye prescription?

They may also enter an abbreviation “DS” (Dioptre Spheres) or “SPH” (Sphere) indicating that the correction required is spherical only. An AXIS will only be found on your prescription if there is a CYL value for the same eye. The AXIS, in degrees, is a number between 0 and 180.

What does “SPH +0 25” mean?

The “SPH +0.25” means that the lenses should include a spherical component of +0.25 dioptre, which is a positive lens with a 4 m focal length. That in turn means your eye is slightly farsighted.

What does “CYL +050” and “SPH +025” mean on eyeglasses?

The second part “CYL +0.50” means that your eye has some astigmatism, and correcting it would require a cylinder-shaped lens component of 0…. That’s a relatively weak prescription. The “SPH +0.25” means that the lenses should include a spherical component of +0.25 dioptre, which is a positive lens with a 4 m focal length.

How do I know if my Prescription shows SPH or CYL values?

There are occasions where your optician will write out your complete “Distance” prescription followed by your complete “Near” prescription. If this is the case, your prescription will display SPH, CYL & AXIS values in both the “Distance” and “Near” sections of the prescription.