Photorefractive keratopathy is a term used for corneal surface changes and symptoms arising after laser procedures that reshape the cornea to correct refractive errors. It reflects the way the corneal tissue responds and heals following treatment.
Features and Causes
After excimer laser procedures such as PRK or surface ablation, the corneal epithelium regenerates and the underlying tissue remodels. During this process, some people develop haze, irregular healing, or discomfort that can affect visual clarity.
- May present with fluctuating or blurred vision during the healing phase
- Glare, halos, or reduced contrast can occur
- Corneal haze reflects changes in stromal clarity and organisation
- Risk is influenced by treatment depth, healing response, and UV exposure
Management
Management includes lubricants, topical anti-inflammatory medication, and careful monitoring of corneal healing. In some cases, additional treatments such as specialised eye drops, surface polishing, or further laser adjustment may be considered once healing is stable.
- Regular follow-up helps distinguish normal healing from problematic changes
- UV protection with sunglasses can reduce the risk of haze
- Most mild symptoms improve gradually over months
- Persistent irregularity may require tailored optical or surgical approaches
