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Anterior chamber after intrascleral filtering surgery
Ophthalmic Surgery
|February 1, 1977
Summary
Shallow anterior chamber (AC) depth after intrascleral filtering surgery can lead to lens-cornea touch, increasing cataract risk in glaucoma patients. Maintaining AC depth of 2 corneal thicknesses (CT) or more prevents this complication.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Anterior Segment Surgery
Background:
- Intrascleral filtering surgery is a common procedure for glaucoma management.
- Postoperative anterior chamber (AC) depth is a critical factor influencing surgical outcomes.
- Lens-cornea touch is a potential complication following glaucoma surgery.
Purpose of the Study:
- To evaluate the relationship between postoperative anterior chamber (AC) depth and lens-cornea touch after intrascleral filtering surgery.
- To identify risk factors for lens-cornea touch and subsequent cataract formation.
- To compare the AC reformation rates between filtering procedures with and without scleral flaps.
Main Methods:
- Intrascleral filtering surgery was performed on 58 eyes.
- Anterior chamber (AC) depth was measured postoperatively using corneal thicknesses (CT) as a unit.
- Lens-cornea touch and cataract formation were monitored.
Main Results:
- Lens-cornea touch occurred in 3 of 28 eyes with chronic simple glaucoma, correlating with cataract formation.
- No lens-cornea touch was observed in eyes with AC depth of 2 CT or greater.
- All instances of lens-cornea touch occurred by postoperative day 5.
- Filtering procedures with scleral flaps did not show faster AC reformation than those without.
Conclusions:
- Maintaining adequate postoperative anterior chamber (AC) depth (≥2 CT) is crucial to prevent lens-cornea touch and associated cataract formation after intrascleral filtering surgery.
- The surgical technique (with or without scleral flap) does not significantly impact the speed of AC reformation.