Effect of intravitreal injection of dexamethasone implant on corneal endothelium in macular edema due to retinal vein occlusion


Ilhan N., Coskun M., Ilhan O., Ayhan Tuzcu E., Daglioglu M. C., Elbeyli A., ...Daha Fazla

Cutaneous and Ocular Toxicology, cilt.34, sa.4, ss.294-297, 2015 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.3109/15569527.2014.975242
  • Dergi Adı: Cutaneous and Ocular Toxicology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.294-297
  • Anahtar Kelimeler: Anterior eye segment, corticosteroid, drug delivery systems
  • Hatay Mustafa Kemal Üniversitesi Adresli: Evet

Özet

Objective: To evaluate the effects of dexamethasone (DEX) implant (Ozurdex®) on corneal endothelium in patients with retinal vein occlusion complicated with macular edema.Materials and methods: Patients (n = 31) received 1-3 intravitreal DEX implants in one eye. Measurements were intraocular pressure (IOP) at baseline and 1, 3, and 6 months after the first intravitreal injection and corneal specular microscopy and central corneal thickness (CCT) at baseline and 1 and 6 months. We analyzed endothelial cell density (ECD), coefficient of variation of cell size (CV), and percentage of hexagonality.Results: Mean follow-up period was 9.7 ± 3.3 months. Mean number of injections was 1.5 ± 0.8. Mean IOP values were 15.6 ± 2.6 mm Hg at baseline, 17.7 ± 3.6 mm Hg at one month, 16.4 ± 4.1 mm Hg at three months, and 16.0 ± 2.7 mm Hg at six months. There was a significant difference in mean IOPs at one month and six months (p = 0.008). There were no significant differences in mean ECD (p = 0.375), CV (p = 0.661), percentage of hexagonality (p = 0.287), and CCT (p = 0.331).Conclusion: Although intravitreal injection of 0.7 mg DEX causes moderate elevation of IOP, it does not seem to have detrimental effects on corneal endothelium at six months.