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Non-traumatic bilateral corneal flap dislocation 20 years after LASIK
Dakun Ren1, Xiangrong Xie1, Xingtong Wang1
1Department of Ocular Surface and Refraction, Heji Hospital Affiliated to Changzhi Medical College, 161 East Jiefang Road, Changzhi, Shanxi, 046000, P.R. China.
BMC Ophthalmology
|October 31, 2025
Summary
Late non-traumatic corneal flap dislocation occurred 20 years after LASIK surgery. This case highlights dry eye as a potential cause for flap displacement, emphasizing the need for careful patient monitoring.
Area of Science:
- Ophthalmology
- Corneal Surgery
Background:
- A case report detailing late non-traumatic bilateral corneal flap dislocation.
- Occurred 20 years after photorefractive keratectomy (PRK) and laser-assisted in situ keratomileusis (LASIK) surgery.
Purpose of the Study:
- To report an unusual case of late, non-traumatic corneal flap dislocation.
- To explore potential causative factors, including dry eye disease.
Main Methods:
- A 52-year-old female patient presented with sudden visual loss.
- Examination revealed bilateral corneal flap dislocation; flap replacement surgery was performed.
- Anterior Segment Optical Coherence Tomography (AS-OCT) assessed flap position and healing post-surgery.
Main Results:
- Successful corneal flap repositioning and stabilization were achieved.
- Post-operative AS-OCT confirmed centered flaps without displacement.
- Uncorrected distance visual acuity improved to 20/40 bilaterally.
- Epithelial ingrowth was noted post-surgery.
Conclusions:
- Non-traumatic corneal flap dislocation can occur late after LASIK.
- Dry eye disease may be a direct causative factor, not just a risk factor, for flap dislocation.
