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Stereopsis and retinal microstructures following macular hole surgery
Fumiki Okamoto1, Yuki Moriya2, Yoshimi Sugiura2
1Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan. fumiki-o@md.tsukuba.ac.jp.
Scientific Reports
|November 12, 2020
Summary
Macular hole (MH) surgery significantly improves stereopsis, but it remains impaired compared to normal vision. Retinal microstructure defects predict postoperative stereopsis outcomes after MH vitrectomy.
Area of Science:
- Ophthalmology
- Vision Science
- Retinal Surgery
Background:
- Macular holes (MH) are common retinal conditions affecting central vision.
- Stereopsis, or depth perception, is crucial for visual function and can be impacted by MH.
Purpose of the Study:
- To evaluate changes in stereopsis after macular hole (MH) vitrectomy.
- To investigate the relationship between stereopsis and retinal microstructural integrity post-surgery.
Main Methods:
- Prospective study involving 52 patients undergoing MH vitrectomy and 20 controls.
- Stereopsis assessed using Titmus Stereo Test (TST) and TNO stereotest.
- Optical coherence tomography (OCT) used for retinal microstructure evaluation pre- and post-surgery at multiple time points (3, 6, 12 months).
Main Results:
- Stereopsis significantly improved post-vitrectomy but remained worse than in controls (p < 0.001).
- Preoperative TST correlated with MH size and external limiting membrane (ELM) defect length.
- Postoperative TST and TNO correlated with preoperative ELM and interdigitation zone (IZ) defect lengths, respectively.
Conclusions:
- Vitrectomy for MH enhances stereopsis, though full recovery to normal levels is not achieved.
- Preoperative ELM defect length is a prognostic factor for TST-assessed stereopsis.
- Preoperative IZ defect length predicts TNO-assessed stereopsis outcomes.
