Visual acuity
By Isabella Sara Novack
Reviewed by
Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
A measure of how clearly you can see details, often assessed using an eye chart during an eye exam. Visual acuity tests help determine the sharpness of your vision and are crucial in diagnosing refractive errors and other vision issues. It's typically expressed as a fraction, such as 20/20 also know as 6/6 indicating normal vision.