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What does this prescription mean?

What does the following prescription mean?

  • I have a prescription for my glasses of the following and I'm just trying to work out what it means RT: -1.25/-5.25 x 178 Visual Acuity 6/6 LT: -1.25/-4.25 x 179 Visual Acuity 6/6 Which numbers are the sphere, cylinder, axis and what do they mean/measure exactly ?? Thanks in advance

  • Answer:

    Sphere/Cylinder x Axis Visual Acuity 6/6 The Visual Acuity 6/6 means that your vision is fully correctable. That's how well you see with the correction. You have a large amount of astigmatism (the Cylinder) that leaves you short-sighted.

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