Bacterial Keratitis
ICD-10 H16.0 · ICD-11 9A71
Treatment of Bacterial Keratitis Complicated by Corneal Stromal Thinning or Perforation Risk
When bacterial keratitis progresses to threaten the structural integrity of the eye — with an extremely thin cornea, impending or frank perforation, or disease that is progressive or unresponsive — standard treatment alone is insufficient. These complicated cases require additional, targeted intervention.
This protocol is specifically for bacterial keratitis cases where corneal stromal thinning is present or where there is risk of perforation, endophthalmitis, or refractory progressive disease. Preserving the integrity of the eye becomes a parallel priority alongside infection control.
Treatment Approach — Partial Overview
Management in this setting combines targeted medical therapy directed at limiting further corneal stromal breakdown with, when the condition continues to progress, surgical options aimed at restoring corneal integrity.
Specific agents, surgical criteria, and the full decision algorithm are in the structured protocol below.References
- Additional treatment is necessary in cases where the integrity of the eye is compromised, such as when there is an extremely thin cornea, impending or frank perforation, progressive or unresponsive disease, or endophthalmitis.
- Oral antibiotics in the tetracycline class (including doxycycline and minocycline) and N-acetylcysteine could be used to counteract corneal stromal thinning by inhibiting matrix metalloproteinases, but there are limited data on their use for the management of infectious keratitis.
- Application of tissue adhesive, penetrating keratoplasty, and lamellar keratoplasty are among the other treatment options for progressive corneal stromal thinning.
- Amniotic membrane transplantation and conjunctival flap may be used in cases refractory to medical treatment.
- Cross-linking may be beneficial in cases of bacterial keratitis refractory to medical therapy.