Cataract — Preparation

Biometry: choosing the right implant

Before the operation, precise measurements of the eye — contact-free, in a few seconds — make it possible to calculate the power of the implant that will replace the crystalline lens. Aim: the sharpest possible vision, according to your needs. Hover over each measurement:

What we measure

Cross-section of the eye with the biometry measurements

Calculation

Eye length

≈ 23.5 mm — the distance from cornea to retina

Corneal curvature

≈ 43.5 D — the power of the corneal dome

Chamber depth

≈ 3.2 mm — the distance from cornea to iris

↓ calculation formula

Implant power

≈ 21.0 D

Educational diagram — Dr Moïse Tourabaly, ophthalmologist. For information only, does not replace an examination.