Comparison of the inhibitory effect of topical cyclosporine A 0.1% and topical anti-VEGF application in an experimental model of corneal neovascularization Comparação do efeito inibitório da ciclosporina A 0,1% tópica e aplicação de anti-VEGF tópica em um modelo experimental de neovascularização da córnea

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Ulusoy D. M., Kahraman N., BALCIOĞLU E., Duru Z.

Arquivos Brasileiros de Oftalmologia, vol.85, no.1, pp.19-24, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 85 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.5935/0004-2749.20220004
  • Journal Name: Arquivos Brasileiros de Oftalmologia
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database, Directory of Open Access Journals
  • Page Numbers: pp.19-24
  • Kayseri University Affiliated: No


© 2022. Arquivos Brasileiros de Oftalmologia. All Rights ReservedPurpose: The aim of this study was to compare the effects of topical cyclosporine 0.1% and bevacizumab on experimentally induced corneal neovascularization in a rat model. Methods: A total of 30 adult Sprague-Dawley rats were used in this experimental study. The central cornea of the rats was cauterized chemically. The rats were randomly enrolled into three groups as follows: Group 1 received bevacizumab 1%, Group 2 received cyclosporine 0.1%, and Group 3 received isotonic saline twice a day for 28 days. Slit-lamp examination of all rats was performed at the 3rd and 28th day. The rats were then sacrificed, and the corneas were excised. The number of blood vessels, state of inflammation, and collagen formation were evaluated histopathologically in the corneal sections. Results: Corneal opacity and edema grades were significantly lower in Group 2 than in Group 3 (p=0.04 and 0.00, respectively). In the histopathological examination, Group 2 demonstrated significantly lesser number of blood vessels than Group 3 (p=0.001). Regarding collagen formation, Group 2 exhibited more regular collagen formation than Groups 1 and 3 (p=0.03). Inflammation grades were significantly lower in Groups 1 and 2 than in Group 3 (p=0.014 and 0.001, respectively). Conclusion: Topical bevacizumab is effective in inhibiting newly formed corneal neovascularization. The topical cyclosporine 0.1% treatment appears to be more effective than the topical bevacizumab treatment