What is the average axial length of a normal eye?

The average axial length of a normal eye is approximately 23.06 millimeters. This measurement is critical in ophthalmology, particularly for assessing refractive errors and planning surgical interventions such as cataract surgery or refractive surgery. The axial length can vary slightly among different populations and individuals, but 23.06 millimeters is generally accepted as the standard average. This value represents the distance from the anterior surface of the cornea to the retina at the posterior pole of the eye, which is essential for maintaining proper focus and visual clarity. Understanding this average is fundamental for diagnostic practices and treatment planning in ophthalmology.