Below is to quickly convert the post Lasik Corneal reading and IOL constant conversion to pACD or (C constant ) for Shammas-PL formula. Shammas PL formula is based on no history method. If you already have patient's pre lasik data then you may also follow Shamma's refraction derived corrected Keratometric value. The below is for paitent's who do not have any data.
Aconstant and post Lasik corneal power conversion for Shammas Post Lasik Formula - quickguide.org