For over half the century ultrasound was the only available tool to measure ocular axial length with fewer IOL formulas. Now optical biometry has revolutionised the field of cataract surgery. Biometers nowadays have many inbuilt IOL formulas right form mergence to artificial intelligence based ones. They also host onboard toric calculators in their armamentarium. This video demonstrates live case scenarios of biometry wherein the patient is evaluated by optical biometery, manual keratometer, scheimpflug topographer and immersion biometry in this COVID era and finally a workup in a worksheet will be demonstrated. This worksheet is designed and engineered over a period of one year involving an expert team of ophthalmologists, physicist and optometrist. In simple words this video will throw clarity on accurate and precise biometry evaluation and validation.
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