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Formaldehyde-induced keratopathy after strabismus surgery
Berrak Sekeryapan1, Ali Kurt, Kemal Turkyilmaz
1Ophthalmology Department, Rize University, School of Medicine, Rize, Turkey. bsekeryapan@yahoo.com
International Ophthalmology
|December 6, 2011
Summary
A patient experienced corneal haze and permanent ptosis following strabismus surgery. Formaldehyde toxicity from intraoperative sodium hyaluronate is suspected as the cause, marking a novel complication.
Area of Science:
- Ophthalmology
- Toxicology
- Surgical Complications
Background:
- Strabismus surgery aims to correct eye alignment.
- Sodium hyaluronate is commonly used to protect the corneal epithelium during ocular procedures.
- Formaldehyde disinfection is a sterilization method for medical devices and solutions.
Observation:
- A patient developed significant corneal haze after strabismus surgery.
- The patient also experienced permanent ptosis (drooping eyelid).
- Formaldehyde-disinfected sodium hyaluronate was used during the surgical procedure.
Findings:
- The observed corneal haze and ptosis are attributed to formaldehyde toxicity.
- This represents the first reported instance of these specific complications following strabismus surgery.
- Keratopathy was also noted as a potential consequence of the formaldehyde exposure.
Implications:
- Highlights the potential risks of formaldehyde toxicity in ophthalmic surgery.
- Suggests a need for careful evaluation of disinfection agents used in eye procedures.
- Underscores the importance of recognizing rare complications in surgical patient care.

