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Pannus may recur after sodium amide eye injury
A 3-year case report documents delayed epithelial healing, repeated fibrovascular tissue growth, and unequal visual recovery following a bilateral chemical burn.
To describe the 36-month clinical course of a patient with severe bilateral ocular injury from sodium amide.
Approach:
Case: Investigators followed a 23-year-old man after sodium amide and glass fragments injured both eyes, documenting epithelial healing, pannus, other complications, and visual acuity.
Literature search: The authors searched PubMed, Embase, and chemistry databases for prior reports of sodium amide ocular injury; their English-language search found no specific cases.
Key Findings:
Both eyes had extensive limbal ischemia, epithelial defects, and corneal opacification. Healing took about 2 months in the left eye and an estimated 90–143 days in the right.
Fibrovascular pannus began invading both corneas at 2.75 months and recurred or progressed despite medical treatment and repeated surgical resections.
At 36 months, the left eye achieved 20/25 vision with refraction; right-eye uncorrected acuity ranged from 20/100 to 20/300 during months 30–36.
Complications included scleral and peripheral corneal thinning and recurrent symblepharon.
Interpretation:
This case documents prolonged epithelial healing and recurrent fibrovascular pannus after severe bilateral sodium amide exposure. At 36 months, the left eye achieved 20/25 vision with refraction, while right-eye uncorrected acuity ranged from 20/100 to 20/300 during months 30–36; healing remained ongoing.
Limitations:
A single case cannot establish whether these outcomes are typical of sodium amide injuries.
Multiple treatments were used, so the effect of any individual intervention could not be determined.
Pannus was diagnosed clinically without histopathologic or immunohistochemical confirmation; quantitative measures of corneal changes and inflammation were unavailable.
The ultimate outcome was uncertain because healing continued at 3 years.
English-language search terms may have missed relevant reports.
Conclusion:
The authors described prolonged healing and recurrent fibrovascular pannus after severe bilateral sodium amide exposure. At 3 years, pannus remained, with better visual acuity in the left eye than in the right, and the ultimate outcome was uncertain because healing was ongoing.
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