the Barrett True K Formula for prior Myopic/ Hyperopic Lasik or PRK
http://calc.apacrs.org/Barrett_True_K_Universal_2105/
This Formula is valuable if you have performed the previous Surgery yourself or have reliable clinical records because the ELP will be computed by the initial Ks of the Eye prior to the keratorefractive procedure. The Power of the IOL is of course adjusted to the postoperative Cornea Power.
Additional information
| online IOL Calculators: need to register |
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