The Outcomes of Trabectome Surgery in Patients with Low, Middle, and High Preoperative Intraocular Pressure
Naoki Tojo, Atsushi Hayashi Department of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, JapanCorrespondence: Atsushi HayashiDepartment of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitan...
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| Formato: | article |
| Lenguaje: | EN |
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Dove Medical Press
2020
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| Acceso en línea: | https://doaj.org/article/2935dcc254774461861010d035b87c1a |
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| Sumario: | Naoki Tojo, Atsushi Hayashi Department of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, JapanCorrespondence: Atsushi HayashiDepartment of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, JapanTel +81-76-434-7363Fax +81-76-434-5037Email ahayashi@med.u-toyama.ac.jpBackground: We compared the efficiency of trabectome surgery for patients with differing preoperative intraocular pressure (IOP) values in a single-facility retrospective study. We evaluated surgical outcomes based on three grades of preoperative IOP: high (hi-IOP, > 26 mmHg), middle (mid-IOP, 18– 26 mmHg), and low (lo-IOP, < 18 mmHg).Patients and Methods: We analyzed the cases of 204 eyes that underwent trabectome surgery and were followed > 2 years. We defined failure as a reduction of IOP < 20% or requiring additional glaucoma surgery. We used 4 cutoff values > 21, > 18, > 15, and > 12 mmHg. Other factors that may affect surgical outcomes were also investigated: age, central corneal thickness (CCT), history of selective laser trabeculotrabculoplasty (SLT), preoperative visual field, and simultaneous cataract surgery.Results: Trabectome surgeries significantly decreased the IOP values from 23.0 ±  7.2 mmHg to 13.6 ±  3.6 mmHg at 2 years post-surgery. The mid-IOP group achieved significantly better surgical outcomes than the lo-IOP and hi-IOP groups with cutoff values 21, 18, and 15 mmHg. A thin CCT and simultaneous cataract surgery were significantly related to better surgical outcomes with cutoff value 21.18 and 15 mmHg.Conclusion: For the patients with preoperative IOP < 18 mmHg, it was difficult to decrease their IOP > 20% with trabectome surgery. Patients with preoperative IOP values > 26 mmHg often required additional glaucoma surgery.Keywords: trabectome, surgical outcome, intraocular pressure, factor, preoperative IOP |
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