If warpage occurs, what should we do?

If warpage occurs, what should we do?

• A. Replace the lens
• B. Re-polish the lens
• C. Adjust the prescription
• D. Increase cleaning

Answer: (A)

Warpage means the lens has distorted its shape, changing its curvature and optic zone. With rigid gas-permeable lenses, the shape of the lens is what determines both the refractive power and how it sits on the cornea. If that shape is warped, the lens won’t provide the intended vision or fit reliably, no amount of polishing or surface smoothing will restore the original geometry. Repolishing would address surface irregularities, not a global change in curvature, so it won’t reliably fix warpage. Adjusting the prescription attempts to compensate for refractive error, but if the lens itself is deformed, changing the power won’t restore proper fit or consistent vision. Increasing cleaning won’t correct a warped shape either. The proper action is to replace the warped lens with a new one that has the correct base curve and optic zone, then re-evaluate fit and vision.

Warpage means the lens has distorted its shape, changing its curvature and optic zone. With rigid gas-permeable lenses, the shape of the lens is what determines both the refractive power and how it sits on the cornea. If that shape is warped, the lens won’t provide the intended vision or fit reliably, no amount of polishing or surface smoothing will restore the original geometry.

Repolishing would address surface irregularities, not a global change in curvature, so it won’t reliably fix warpage. Adjusting the prescription attempts to compensate for refractive error, but if the lens itself is deformed, changing the power won’t restore proper fit or consistent vision. Increasing cleaning won’t correct a warped shape either. The proper action is to replace the warped lens with a new one that has the correct base curve and optic zone, then re-evaluate fit and vision.