1. History
  2. Exam
  3. Photos
  4. Diagnosis
  5. Teaching Points

Case 66 Teaching Points

  • Cystoid macular edema can develop after almost any intraocular surgery. Most commonly seen with cataract surgery.
  • Usually occurs 3-12 weeks postoperatively, but can also appear later (as in this case)
  • Complications during cataract surgery, such as posterior capsular rupture, vitreous loss, or iris trauma, significantly increase the likelihood of cystoid macular edema
  • Diabetic patients are also at increased risk of developing cystoid macular edema post-operatively. Screening prior to surgery is extremely important, as 70% of the cases of macular edema that develop after surgery will resolve spontaneously. However, macular edema that was present at the time of surgery will almost never spontaneously resolve.
  • Diabetic macular edema should be treated with laser photocoagulation prior to attempting cataract surgery


Avitabile T, Longo A, Reibaldi A. Intravitreal triamcinolone compared with macular laser grid photocoagulation for the treatment of cystoid macular edema. Am J Ophthalmol 2005;140:695-702.

Tramos PG, et al. Macular edema. Survey Ophthalmol 2004;49:470-490.

Last Modified: Friday, 27-Jun-2008 12:56:54 EDT