---
title: What is corneal inlay?
description: "A corneal inlay is a small implant placed within the corneal stroma of one eye to improve near vision in presbyopia. It modifies the optical properties of the cornea without removing the natural lens. ## Designs and Mechanism Some inlays…"
url: "https://bluefinvision.com/knowledge-base/topics/treatments-procedures/what-is-corneal-inlay/"
updated: "2025-12-12"
category: "Treatments & Procedures"
---

# What is corneal inlay?

A corneal inlay is a small implant placed within the corneal stroma of one eye to improve near vision in presbyopia. It modifies the optical properties of the cornea without removing the natural lens.

## Designs and Mechanism

Some inlays act as a pinhole to increase depth of focus, while others change curvature or refractive index. They are inserted into a femtosecond‑laser‑created pocket or under a flap.

- Typically implanted in the non‑dominant eye as part of a monovision strategy
- Removability is an advantage if vision or tolerance is unsatisfactory
- Availability has decreased in some regions due to variable outcomes
- Careful screening for dry eye and corneal disease is vital

## Risks and Outcomes

While some patients achieve good near function, complications such as haze, glare, or reduced contrast have limited widespread adoption. Many centres now favour lens‑based solutions instead.

- Regular monitoring checks corneal clarity and implant position
- Explanted eyes often recover baseline vision, but subtle changes can persist
- Patients must understand the trade‑off between near gain and potential distance or quality‑of‑vision changes
- Long‑term safety data are still evolving for some designs