---
title: What is Thygeson superficial punctate keratitis?
description: "Thygeson superficial punctate keratitis (TSPK) is a chronic, recurrent inflammatory condition of the corneal epithelium characterised by small, elevated, grey‑white lesions that cause irritation and photophobia. ## Clinical Course Episodes can last weeks to months and recur over years, often…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/what-is-thygeson-superficial-punctate-keratitis/"
updated: "2025-12-15"
category: "Conditions & Diseases"
---

# What is Thygeson superficial punctate keratitis?

Thygeson superficial punctate keratitis (TSPK) is a chronic, recurrent inflammatory condition of the corneal epithelium characterised by small, elevated, grey‑white lesions that cause irritation and photophobia.

## Clinical Course

Episodes can last weeks to months and recur over years, often with periods of remission.

- Symptoms include foreign‑body sensation, tearing, light sensitivity, and mild blur; pain is usually moderate rather than severe.
- Lesions tend to be central, discrete, and stain poorly with fluorescein compared with other keratitides.
- Vision often improves between attacks, and permanent scarring is uncommon.
- The exact cause is unknown but likely immune‑mediated.

## Management

Treatment focuses on symptom control and reducing inflammation.

- Lubricants provide comfort, while mild topical steroids or ciclosporin drops may be used for flare‑ups.
- Long‑term steroid use is avoided where possible because of cataract and glaucoma risk.
- Soft contact lenses can improve comfort in some patients but require careful supervision.
- Regular monitoring ensures that alternative causes of superficial keratitis are not missed.