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Iris Retraction Without Hypotony.

Carson C Petrash1, Alan G Palestine2, Jesse Smith2

  • 1Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Rocky Mountain Lions Eye Institute, 1675 Aurora Court, Aurora, CO, 80045, USA. Carson.Petrash@cuanschutz.edu.

Ophthalmology and Therapy
|March 23, 2022
PubMed
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Iris retraction syndrome typically involves low eye pressure. This case study presents a unique instance of iris retraction without hypotony, suggesting a different underlying mechanism possibly linked to posterior cyclitic membrane.

Area of Science:

  • Ophthalmology
  • Medical Case Reports

Background:

  • Iris retraction syndrome (IRS) is commonly associated with hypotony (low intraocular pressure).
  • Previous literature exclusively links IRS to low intraocular pressure.

Purpose of the Study:

  • To report a unique case of iris retraction syndrome occurring in the absence of hypotony.
  • To suggest an alternative mechanism for iris retraction beyond hypotony.

Main Methods:

  • A case report of a 35-year-old woman with atopic dermatitis, cataract, and uveitis.
  • Clinical observation of bilateral iris retraction with normal or elevated intraocular pressure.
  • Management included pars plana vitrectomy, lensectomy, cyclitic membrane dissection, and glaucoma surgery.

Main Results:

Keywords:
Atopic DermatitisCyclitic MembraneIris Retraction

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  • The patient presented with clinical features of iris retraction syndrome but without hypotony.
  • Ocular pressure was normal or elevated, and iris position did not normalize with dilation.
  • The patient experienced complications including retinal detachment and ocular hypertension, but achieved a good visual outcome after multiple interventions.

Conclusions:

  • Iris retraction can occur without hypotony, challenging the established understanding of IRS.
  • A posterior cyclitic membrane may play a role in the pathogenesis of iris retraction in the absence of hypotony.