What is keratometry?

Keratometry is defined as a method for measuring the curvature of the cornea, which is crucial in the field of contact lens fitting and eye care in general. Understanding the curvature of the cornea allows practitioners to determine the appropriate curvature of contact lenses, ensuring they fit well and provide clear vision. The accuracy of keratometry measurements directly impacts the outcomes for refractive surgeries and contact lens prescriptions, as it helps in assessing corneal astigmatism as well.

The other options focus on different aspects of eye health. Testing visual acuity pertains to determining how well a person can see, which is not related to curvature measurements. Measuring eye pressure is performed in the context of glaucoma assessments and involves a different set of tools and techniques. Assessing tear production is linked to dry eye evaluations and does not involve the measurement of corneal curvature.