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Changes in anterior ocular structures and macula following deep sclerectomy with collagen implant

Abstract

Purpose

To determine the effect of intraocular pressure (IOP) lowering with deep sclerectomy (DS) on visual acuity, macular structures, and anterior ocular dimensions during the early postoperative period.

Methods

We prospectively analyzed 35 eyes of 35 patients scheduled for DS. Our focus with the measurements was on early postoperative changes in anterior ocular and macular structures related to IOP lowering during the first month after DS. In addition to a clinical ophthalmologic examination, our measurements included corneal topography, measurement of ocular dimensions with optical biometry, and examination of macular structure with optical coherence tomography. These measurements were repeated 1, 2, and 4 weeks postoperatively.

Results

Best-corrected visual acuity (BCVA) decreased 1 week postoperatively to 0.22 (0.20) LogMAR (p = 0.006). The BCVA then increased to its preoperative level, 0.17 (0.18) (p = 0.28), after 4 weeks. Axial length decreased from 24.12 (1.81) mm to 24.04 (1.81) (p<0.001) 4 weeks postoperatively. The steeper meridian of corneal curvature and average corneal power increased postoperatively; central corneal thickness was decreased. No significant change appeared in other measurements.

Conclusions

We found changes in corneal curvature and ocular dimensions after DS. These changes were relatively small and do not completely explain the decrease in visual acuity postoperatively. Macular structures showed no changes.

Post author correction

Article Type: ORIGINAL RESEARCH ARTICLE

Article Subject: Glaucoma

DOI:10.5301/ejo.5001014

Authors

Sakari M.A. Suominen, Mika P. Harju, Asta M.E. Hautamäki, Eija T. Vesti

Article History

Disclosures

Financial support: Supported by Glaukooma Tukisäätiö LUX.
Conflict of interest: None of the authors has conflict of interest with this submission.

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Authors

Affiliations

  •  Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki - Finland
  •  Department of Ophthalmology, Turku University Hospital and University of Turku, Turku - Finland

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