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Efficacy and Safety of Multiple Intravitreal Triamcinolone Injections for Refractory Diabetic Macular Oedema.
  1. Mark C Gillies (mark{at},
  2. Amirul Islam (fislam{at},
  3. Meidong Zhu (meidong{at},
  4. Jörgen Larsson (jorgen.larsson{at},
  5. Tien Yin Wong (twong{at}
  1. Save Sight Institute, University of Sydney, Australia
  2. Centre for Eye Research Australia, University of Melbourne, Australia
  3. University of Sydney, Sydney Eye Hospital, Australia
  4. Save Sight Institute, University of Sydney, Australia
  5. University of Melbourne, Australia


    Aim: The efficacy and safety of repeated injections of intravitreal triamcinolone (IVTA) for diabetic macular oedema is unclear, with results of previous reports conflicting.

    Methods: This is a prospective, observational case series of 27 eyes receiving IVTA for diabetic macular oedema. LogMAR visual acuity (VA) and central macular thickness (CMT) were measured at baseline and in 3 to 6 monthly intervals for up to 24 months, then correlated with the number of IVTA injections given.

    Results: One IVTA injection was required in 6 (18%) eyes, 2 in 8 (24%) eyes, 3 in 13 (39%) eyes and 4- 5 in 6 (18%) eyes. VA improved in all patients, but neither the final improvement in VA nor the absolute improvement in CMT from baseline to 24 months correlated with the number of injections received (p=0.44 and 0.84 respectively). Cataract surgery was more frequent in eyes receiving more injections (p=0.01).

    Conclusions: This study suggests that repeated injections of IVTA continue to be as effective as the first over a 2 year period. The probability of cataract surgery increases with increasing number of injections

    • Cystoid
    • Diabetic retinopathy
    • Intravitreal therapy
    • Macular edema
    • Triamcinolone Acetonide

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