---
title: Is PRESBYOND surgery suitable if prescription is still changing?
description: "PRESBYOND is generally not suitable while the prescription is still changing. ## Problems with ongoing change Results may not remain accurate. - Refractive shift can quickly undo the benefits of surgery - Changing refraction may indicate undiagnosed corneal disease -…"
url: "https://bluefinvision.com/knowledge-base/topics/suitability/is-presbyond-surgery-suitable-if-prescription-is-still-changing/"
updated: "2025-12-30"
category: Suitability
---

# Is PRESBYOND surgery suitable if prescription is still changing?

PRESBYOND is generally not suitable while the prescription is still changing.

## Problems with ongoing change

Results may not remain accurate.

- Refractive shift can quickly undo the benefits of surgery
- Changing refraction may indicate undiagnosed corneal disease
- Increases likelihood of needing further procedures
- Makes it harder to plan the blended‑vision balance between eyes
- Conflicts with standard refractive surgery safety guidelines

## Recommended approach

Stabilisation comes first.

- Monitor prescription over time to confirm when it becomes stable
- Use corneal topography to exclude ectasia or other pathology
- Manage vision with spectacles or contact lenses in the meantime
- Reassess suitability once stability is documented
- Consider lens-based options if change is driven by early cataract rather than cornea