Contact Lens Method – East Valley Ophthalmology | 合法醫療器材資訊網

Step1·Basecurve=0.95*(0.50*(K1+K2))Basecurve=0.95*(0.50*(35.88D+33.75D))·Basecurve=0.95*34.82D=33.07Dandthenroundupordownto ...

This information is offered for historical interest only.

The Contact Lens Method, originally outlined by Dr. Holladay, was once considered a helpful way to estimate the average central corneal power following radial keratotomy. This technique required a special PMMA contact lens, of a known base curve and power. We have found the contact lens method to be less accurate following other forms of keratorefractive surgery, such as LASIK, LASEK, PRK, and ALK.

Following all forms of ablative keratorefractive surgery (LASIK, PRK, etc.) a review of the literature now suggests that the hard contact lens method may be less accurate than originally thought. For this reason, it is no longer recommended in this clinical setting.

In this situation, the clinical relationship: