.Aim: The aim of this study was to detect clinical factors predictive of loss of visual acuity after treatment in order to develop a predictive model to help identify patients at risk of visual loss. Patients and Methods: This was a retrospective review of patients who underwent interventional radiotherapy (brachytherapy) with 106Ru plaque for primary uveal melanoma. A predictive nomogram for visual acuity loss at 3 years from treatment was developed. Results: A total of 152 patients were selected for the study. The actuarial probability of conservation of 20/40 vision or better was 0.74 at 1 year, 0.59 at 3 years, and 0.54 at 5 years after treatment. Factors positively correlated with loss of visual acuity included: age at start of treatment (p=0.004) and longitudinal basal diameter (p=0.057), while distance of the posterior margin of the tumor from the foveola was inversely correlated (p=0.0007). Conclusion: We identified risk factors affecting visual function and developed a predictive model and decision support tool (AVATAR nomogram).
Lingua originaleEnglish
pagine (da-a)381-387
Numero di pagine7
RivistaIn Vivo
Stato di pubblicazionePubblicato - 2020


  • 106
  • Interventional radiotherapy
  • Nomogram
  • Plaque brachytherapy
  • Prediction model
  • Ru
  • Uveal melanoma
  • Visual acuity


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