# aberrometer

CEFR C1 · Noun

Source: https://englishreference.com/word/aberrometer
Updated: 2026-05-18

## Definition

a medical tool used to check the shape of your eye and how it focuses light. It helps doctors find problems with your vision.

For teachers: an instrument used in ophthalmology to measure the refractive errors of the eye and assess the quality of the optical system. It provides a detailed map of the cornea's surface and lens shape.

## Examples

- The doctor used an aberrometer to check my eyesight.
- During the laser surgery consultation, the technician performed a wavefront aberrometer test to identify any irregularities in the patient's vision.
- Modern aberrometers utilize advanced wavefront technology to detect higher-order aberrations that traditional refractive error measurements cannot identify, allowing for more precise corrective lenses or surgical planning.

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