Fig. 1From: Comparison of astigmatism prediction error taken with the Pentacam measurements, Baylor nomogram, and Barrett formula for toric intraocular lens implantationProportion of eyes with absolute prediction errors within ±0.50 D and ±1.00 D by modality. WTR = with-the-rule, ATR = against-the-rule, TNP = true net power, TCP = total corneal refractive powerBack to article page