Is intraoperative aberrometry an essential tool in cataract surgery?

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ORA (Alcon) is a powerful tool, and the dual abilities of calculating IOL power and measuring and adjusting total refractive astigmatism are compelling reasons to utilize this technology.
IOL calculations in patients with prior keratorefractive surgery have become less difficult with recent improvements in IOL formulas and corneal imaging devices. Some surgeons have also relied on intraoperative aberrometry for confirmation of IOL power and guidance with astigmatism management in these cases. There are studies that clearly

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