June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Unexpected visual loss after intraocular silicone oil removal: a retrospective study
Author Affiliations & Notes
  • Amandio Rocha-Sousa
    Dept Surgery and Physiology (Ophthalmology Unit), Faculty of Medicine; University of Porto, Porto, Portugal
    Ophthalmology, Centro Hospitalar de São João, Porto, Portugal
  • Ana Roca
    Dept Surgery and Physiology (Ophthalmology Unit), Faculty of Medicine; University of Porto, Porto, Portugal
  • Joao Barbosa-Breda
    Dept Surgery and Physiology (Ophthalmology Unit), Faculty of Medicine; University of Porto, Porto, Portugal
    Ophthalmology, Centro Hospitalar de São João, Porto, Portugal
  • Marta Ines Silva
    Ophthalmology, Centro Hospitalar de São João, Porto, Portugal
  • Pedro Alves-Faria
    Ophthalmology, Centro Hospitalar de São João, Porto, Portugal
  • Manuel Alberto Falcão
    Dept Surgery and Physiology (Ophthalmology Unit), Faculty of Medicine; University of Porto, Porto, Portugal
    Ophthalmology, Centro Hospitalar de São João, Porto, Portugal
  • Fernando Falcao-Reis
    Dept Surgery and Physiology (Ophthalmology Unit), Faculty of Medicine; University of Porto, Porto, Portugal
    Ophthalmology, Centro Hospitalar de São João, Porto, Portugal
  • Footnotes
    Commercial Relationships   Amandio Rocha-Sousa, None; Ana Roca, None; Joao Barbosa-Breda, None; Marta Ines Silva, None; Pedro Alves-Faria, None; Manuel Alberto Falcão, None; Fernando Falcao-Reis, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 2806. doi:
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    • Get Citation

      Amandio Rocha-Sousa, Ana Roca, Joao Barbosa-Breda, Marta Ines Silva, Pedro Alves-Faria, Manuel Alberto Falcão, Fernando Falcao-Reis; Unexpected visual loss after intraocular silicone oil removal: a retrospective study. Invest. Ophthalmol. Vis. Sci. 2017;58(8):2806.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : Visual loss following removal of silicone oil has been reported in several studies, although its etiology remains unclear. The authors performed a retrospective, observational clinical study to determine the relationship between the use of silicone oil (SO) as an intraocular tamponade and the incidence of unexplained loss of visual acuity.

Methods : The study involved 175 patients, who underwent SO removal at the Department of vitreo-retinal surgery at Centro Hospitalar São João between January 2012 and June 2015. Patients who had reduction of vision of unexplained cause after SO extractions were studied, searching for possible retinal toxicity of intraocular silicone

Results : Nine patients (5.1%) (4 male, 5 female), with a median age of 57 years (range 31–84 years) reported reduction of vision of unexplained cause after SO extractions. The median time of SO fill was 8 months (range 4–21 months). Patients with 2 or more lines of vision loss of unexplained cause after removal of silicone oil showed a mean drop of visual acuity of 0.2. The intraocular pressure (IOP) became elevated in 7 (77.8%) eyes during the follow up period. Only 2.9% of patients who underwent removal of silicone oil had cataract as a complication

Conclusions : There is a 5.1% overall incidence of unexplained loss of vision in eyes following SO removal, with a high rate in women (55.6%). The main complication observed was ocular hypertension.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

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