Deep sclerectomy with a collagen implant using the excimer laser.
We describe a new technique of nonpenetrating glaucoma surgery that uses the excimer laser to reduce the risk of perforating the trabeculo-Descemet's membrane. With this technique, the ablation is precise and homogeneous. A collagen device is sutured over the scleral bed to create an outflow pathway for aqueous humor drainage. After a superficial scleral flap is dissected with a diamond knife, the sclera, under direct visualization, is ablated with the excimer laser over Schlemm's canal until aqueous humor percolates through from the anterior chamber. A collagen device is placed over the sclera to allow the aqueous humor to flow from the anterior chamber through the trabeculo-Descemet's membrane. The preliminary results show a drop in intraocular pressure to the middle teens.
Argento
C
C
Instituto de la Visión, University of Buenos Aires, Buenos Aires, Argentina.
Sanseau
A C
AC
Badoza
D
D
Casiraghi
J
J
D001082:Aqueous Humor / Q000378:metabolism; D003094:Collagen; D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D053685:Laser Therapy / Q000379:methods*; D019736:Prostheses and Implants; D019919:Prosthesis Implantation; D012590:Sclera / Q000601:surgery*; D012599:Sclerostomy / Q000379:methods*
D003094:Collagen