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Prognostic value of gonioscopy after deep sclerectomy
J Moreno-Montañés1, G Rebolleda, F J Muñoz-Negrete
1Department of Ophthalmology, University Clinic of Navarra, Navarra University, Pamplona, Spain.
European Journal of Ophthalmology
|October 13, 2007
Summary
Visible subscleral space aids intraocular pressure (IOP) control after deep sclerectomy (DS), but this effect diminishes over time. Goniopuncture and narrow angles predict poorer IOP outcomes.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Glaucoma Research
Background:
- Deep sclerectomy (DS) is a surgical procedure to manage intraocular pressure (IOP).
- Understanding gonioscopic findings post-DS is crucial for predicting surgical success.
- Prognostic indicators for IOP control after DS require further elucidation.
Purpose of the Study:
- To identify gonioscopic characteristics associated with intraocular pressure (IOP) after deep sclerectomy (DS).
- To determine prognostic indicators for IOP control following DS surgery.
Main Methods:
- A prospective, transversal study involving 106 eyes (95 patients) post-DS.
- Detailed gonioscopic examination using a standardized protocol with 13 variables.
- Statistical analysis to correlate gonioscopic findings with postoperative IOP and time.
Main Results:
- A subscleral space was observed in 85.8% of eyes; scleral flap line visualization in 45.3%.
- Transparent trabeculo-Descemet membrane (TDM) was noted in 43.4%, with 35.8% requiring Nd:YAG laser goniopuncture.
- Positive IOP correlation with subscleral space and depressed Schwalbe line; negative correlation with narrow angles and iris synechia.
Conclusions:
- Visible subscleral space is a positive prognostic indicator for IOP control post-DS, though its effect decreases over time.
- Eyes requiring goniopuncture, or those with postoperative narrow angles and iris synechia, exhibit poorer IOP control.
- Neovascularization around the TDM is common but not associated with IOP outcomes.
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