Corneal neovascularization and contemporary antiangiogenic therapeutics

Chih-Chien Hsu1, Hua-Ming Chang2, Tai-Chi Lin1

  • 1Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.

Insights

Corneal neovascularization (NV) causes vision loss and current treatments are often ineffective for large vessels. Research explores new therapeutic targets and inhibitors to improve treatment outcomes for this condition.

Area of Science:

  • Ophthalmology
  • Vascular Biology
  • Regenerative Medicine

Background:

  • Corneal neovascularization (NV) involves blood vessel growth into the cornea, impairing vision.
  • Current treatments like steroids, laser photocoagulation, and bevacizumab injections show limitations, particularly for large, recalcitrant vessels prone to recanalization.

Purpose of the Study:

  • To review the pathogenesis of corneal NV.
  • To highlight established animal models for corneal NV research.
  • To survey recent therapeutic targets, inhibitors, and immunosuppressants for corneal NV.

Main Methods:

  • Literature review of corneal neovascularization pathogenesis.
  • Analysis of existing animal models: alkali-induced and suture-induced.
  • Survey of therapeutic strategies including growth factor inhibitors and immunosuppressants.

Main Results:

  • Corneal NV is a significant cause of visual impairment with challenging treatment scenarios.
  • Alkali-induced and suture-induced models are key tools for studying corneal NV.
  • Vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) are identified as crucial targets.

Conclusions:

  • Effective treatment of corneal NV, especially large vessels, remains a clinical challenge.
  • Animal models are essential for advancing research into corneal NV.
  • Targeting VEGF, PDGF, and exploring novel immunosuppressants offer promising avenues for future therapies.

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