Correlate A-scan, biometry measurements to improve accuracy in IOL calculations

While there are multiple methods and formulas for calculating the IOL power for cataract surgery, none of them will give an accurate result if the biometry is imprecise. As the saying goes, “Garbage in, garbage out.” One of the most common situations in which we have inaccurate measurements is when an opaque cataract prevents our optical coherence biometry from measuring the axial length.
A mistake of 1 D in the keratometry reading will give about 1 D of error in the IOL power calculation. However, a 1 mm mistake in (Read more...)

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