Quick Asked: Contact Lens Oblique Cylinder Calculator?

Last update: 24 Apr, 2024 294 Views

What do the numbers on my contact lenses mean? This number is usually between 13 and 15 and determines where on your eye the contact lens will sit. If this measurement isn't correct the contact lens will be uncomfortable and may scratch your eye. CYL: Cylinder value. Usually a number between -4 and +4, this is the amount of power needed to correct your astigmatism.

How do i apply overrefraction to my contact lenses? Enter the rotation of the contact lens as you see it on the eye. You can do this with the buttons below the image or by clicking the contact lens itself. Enter your overrefraction in the second box. If desired, enter the brand of trial lens you're working with. The powers of the suggested lens will appear in the last box.

How do i use the contact lens evaluation tool? This tool uses your evaluation of a soft toric contact lens and suggests a new trial lens. Enter the power of your contact lens in the first box. Enter the rotation of the contact lens as you see it on the eye. You can do this with the buttons below the image or by clicking the contact lens itself.

How does the calculator calculate the ideal lens? The calculation solely uses the lens power, lens rotation, and overrefraction to make its suggestion - no considerations are made for lens brand in the calculation. However, once the ideal lens power is established the calculator looks up the chosen lens brand and finds the powers that are closest to the ideal lens.

Listing Results Contact Lens Oblique Cylinder Calculator? Question Answers