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Pressure restoration and visual recovery time in hypotony after trabeculectomy

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Abstract

Objectives

To asses the course of intraocular pressure (IOP) restoration and visual acuity (VA) recovery in eyes with hypotony after trabeculectomy.

Methods

Medical charts of patients undergoing trabeculectomy between January 2017 and June 2019 were reviewed. Cases with hypotony (IOP < 5 mmHg) due to over-filtration in the early postoperative period were assessed retrospectively. Primary outcome measures included change in IOP and VA in the postoperative period and percentage of eyes with hypotony on each follow-up.

Results

Thirty-five eyes of 31 patients (23 male, 8 female) were included. The mean follow-up was 18.3 ± 6.9 months. The mean IOP was 3.0 ± 3.2, 9.2 ± 6.2, 9.4 ± 5.6, 9.4 ± 4.0, 10.9 ± 3.6 and 10.2 ± 3.3 mmHg at week 1, months 1, 3, 6, 12 and last follow-up, respectively. Out of 35 hypotonic eyes, 8 (22.8%) had prolonged hypotony at month 1, 4 (11.4%) at month 3, 1 (2.9%) at month 6. The decrease in VA continued to be significant at months 1 and 3 (p = 0.015, p = 0.036, respectively) and returned to baseline after the sixth month (p > 0.524).

Conclusions

In eyes with early hypotony after trabeculectomy while low IOP recovers at first month, it takes longer for the visual restoration. The postoperative month 1 appears to be decisive for recovery of hypotony.

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Availability of data and material

The data that support the findings of this study are available from the corresponding author, upon reasonable request.

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No financial support was received.

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Authors and Affiliations

  1. Beyoğlu Eye Training and Research Hospital, University of Health Sciences, Bereketzade Camii Sok., No 2 Beyoğlu, Istanbul, Turkey

    Neşe Alagöz, Sariye Taskoparan, Ayse Cigdem Altan, Banu Solmaz, Isıl Basgil Pasaoglu, Berna Basarır, Mehmet Ozgur Cubuk & Tekin Yasar

  2. Istanbul Training and Research Hospital, Istanbul, Turkey

    Mehmet Ozgur Cubuk

Authors
  1. Neşe Alagöz
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  2. Sariye Taskoparan
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  3. Ayse Cigdem Altan
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  4. Banu Solmaz
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  5. Isıl Basgil Pasaoglu
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  6. Berna Basarır
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  7. Mehmet Ozgur Cubuk
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  8. Tekin Yasar
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Correspondence to Neşe Alagöz.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Ethical approval was received from the local Ethical Committee.

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Alagöz, N., Taskoparan, S., Altan, A.C. et al. Pressure restoration and visual recovery time in hypotony after trabeculectomy. Int Ophthalmol 41, 3183–3190 (2021). https://doi.org/10.1007/s10792-021-01883-1

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  • DOI: https://doi.org/10.1007/s10792-021-01883-1

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