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Morphological observations of rat corneal endothelial cells after exposure to ozonated solution

Japanese Journal of Ophthalmology volume 53, pages 151–158 (2009)Cite this article

Abstract

Purpose

To determine whether exposure to ozonated solution alters the morphology of corneal endothelial cells in rats and to examine the protective effect of ascorbic acid.

Methods

The anterior chambers of rat eyes were filled with 4 ppm of ozonated solution. Some were left in that state, while others were flushed out either 10, 30, or 60 s after exposure to a balanced salt solution (BSS), or to BSS containing 0.001 M ascorbic acid. Corneal endothelial cells were assessed by scanning and electron microscopy either 1 h or 1 week after treatment, and the expressions of aquaporin (AQ)-1 and zonula occludens (ZO)-1 were determined by immunohistochemistry.

Results

When exposure time was longer than 10 s, damaged cell membranes and abnormal organelles were observed 1 h after treatment. The longer the exposure time, the more severe the observed alterations; however, the eyes regained almost their normal state at 1 week. When the BSS contained ascorbic acid, no severe damage was observed under any condition. Normal AQ-1 and ZO-1 expressions were observed even with 60 s of exposure when ascorbic acid was used.

Conclusions

A short period of irrigation of the anterior chamber with ozonated solution does not harm the corneal endothelium even when used in combination with ascorbic acid.

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Author information

Affiliations

  1. Department of Ophthalmology, Nippon Medical School, Tokyo, Japan

    Hisaharu Suzuki, Nao Murano, Hironori Matsui, Hideaki Oharazawa & Hiroshi Takahashi

  2. Central Institute for Electron Microscopic Research, Nippon Medical School, Tokyo, Japan

    Shigeru Sato

  3. Department of Ophthalmology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan

    Hiroshi Takahashi

Authors
  1. Hisaharu Suzuki
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  2. Shigeru Sato
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  3. Nao Murano
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  4. Hironori Matsui
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  5. Hideaki Oharazawa
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  6. Hiroshi Takahashi
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Corresponding author

Correspondence to Hiroshi Takahashi.

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Cite this article

Suzuki, H., Sato, S., Murano, N. et al. Morphological observations of rat corneal endothelial cells after exposure to ozonated solution. Jpn J Ophthalmol 53, 151–158 (2009). https://doi.org/10.1007/s10384-008-0629-4

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  • DOI: https://doi.org/10.1007/s10384-008-0629-4

Key Words

  • ascorbic acid
  • endophthalmitis
  • ozone
  • phacoemulsification
  • prophylaxis