---
title: What is frontalis sling?
description: "A frontalis sling is a ptosis procedure that links the upper eyelid to the frontalis forehead muscle using a sling material. It is used when the levator muscle is very weak. ## How It Works Strips of autologous fascia lata,…"
url: "https://bluefinvision.com/knowledge-base/topics/treatments-procedures/what-is-frontalis-sling/"
updated: "2025-12-12"
category: "Treatments & Procedures"
---

# What is frontalis sling?

A frontalis sling is a ptosis procedure that links the upper eyelid to the frontalis forehead muscle using a sling material. It is used when the levator muscle is very weak.

## How It Works

Strips of autologous fascia lata, silicone rods, or other materials are passed in a loop pattern from the lid to the brow. Lifting the brow then elevates the eyelid, compensating for poor levator function.

- Common in severe congenital ptosis with poor levator excursion
- Children may require surgery early to prevent amblyopia
- Sling tension is adjusted to balance eyelid opening and closure
- Material choice affects longevity and ease of later adjustment

## Considerations

Because lids rely on the forehead muscle, patients often sleep with partially open eyes and need diligent lubrication. Long‑term follow‑up monitors sling position and ocular surface health.

- Lagophthalmos and exposure keratopathy are key risks
- As the child grows, slings may need tightening or replacement
- Good family education about lubrication and protection is essential
- Frontalis slings can markedly improve visual axis clearance and cosmesis