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Updated: Mar 7, 2026

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
Published on: November 12, 2015
Acute corneal hydrops during pregnancy with spontaneous resolution after corneal cross-linking for keratoconus: a
Ricardo Alexandre Stock1, Thaís Thumé2, Elcio Luiz Bonamigo2
1Universidade do Oeste de Santa Catarina, Rua Getúlio Vargas, 2125, Bairro Flor da Serra, 89600-000, Joaçaba, Santa Catarina, Brazil. ricardostockreal@gmail.com.
Background:
Keratoconus may progress to acute corneal hydrops even after cross-linking. In some cases, keratoconus progresses during pregnancy. In this report, we present a case of a patient with increased anterior stromal resistance after cross-linking that would favor nonprogression of keratoconus during pregnancy.
Case Presentation:
We report that cross-linking is likely to have had a protective effect in a white pregnant patient with acute corneal hydrops who showed rapid improvement, as documented by corneal topography. Improvement occurred within 8 days, whereas up to 250 days are reported in the literature. No keratoconus progression occurred in the 20-month follow-up period.
Conclusions:
Cross-linking failed to prevent the occurrence of acute corneal hydrops after rupture of Descemet's membrane but most likely helped to accelerate the resolution of the condition. Corneal hardening resulting from cross-linking may have also contributed to stabilizing keratoconus during pregnancy.
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