May 2005
Volume 46, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2005
Ultrastructural Examination of Aqueous From Eyes With Rhegmatogenous Retinal Detachments and Elevated Intraocular Pressures
Author Affiliations & Notes
  • C.M. Andreoli
    Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA
  • T.G. Chu
    Retina Vitreous Associates Medical Group, Los Angeles, CA
  • H.I. Covington
    Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA
  • S. Mukai
    Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA
  • Footnotes
    Commercial Relationships  C.M. Andreoli, None; T.G. Chu, None; H.I. Covington, None; S. Mukai, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2005, Vol.46, 5494. doi:
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      C.M. Andreoli, T.G. Chu, H.I. Covington, S. Mukai; Ultrastructural Examination of Aqueous From Eyes With Rhegmatogenous Retinal Detachments and Elevated Intraocular Pressures . Invest. Ophthalmol. Vis. Sci. 2005;46(13):5494.

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

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Abstract

Abstract: : Purpose: Intraocular pressure (IOP) elevation in eyes with rhegmatogenous retinal detachment was described by Schwartz (Schwartz’s syndrome). Photoreceptor outer segments are thought to play a role in the elevation of IOP in these cases (Schwartz–Matsuo syndrome). We analyzed aqueous samples of patients with rhegmatogenous retinal detachments and either elevated or normal IOP by electron microscopy. Methods: Aqueous samples (0.1 to 0.2 ml collected by paracentesis)of 8 eyes in 8 patients with rhegmatogenous retinal detachments were studied with electron microscopy. Two of the patients presented with markedly elevated intraocular pressures (51 and 78 mmHg). The remaining six patients had normal intraocular pressures. Results: Aqueous samples of the two patients with elevated intraocular pressures contained abundant photoreceptor outer segments in varying stages of degeneration. In the six samples from patients with normal pressures, exhaustive electron microscopic evaluation did not reveal any photoreceptor outer segments. Inflammatory cells, fibrin, or pigment granules were rarely seen or absent in all eight cases. Conclusions: These findings suggest that in cases of rhegmatogenous retinal detachments with markedly elevated intraocular pressure, photoreceptor outer segments may play a role in pressure elevation.

Keywords: retinal detachment • photoreceptors • intraocular pressure 
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