The practice or process of measuring astigmatism using specialized optical instruments.
From astigmatism plus -metry (Greek 'measurement'). This technical optometric term describes the clinical procedure of determining the exact characteristics of a patient's astigmatism.
Astigmatometry is one of those beautiful technical procedures where science gets very precise—eye doctors can now measure your vision defects down to quarter-diopter increments using mathematical formulas.
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