Primary congenital glaucoma (PCG) in Egypt accounts for 26–29% of childhood blindness.
Surgical intervention is the primary treatment of PCG, with multiple options according to the case severity and expected prognosis. One of these is Combined Trabeculotomy-Trabeculectomy (CTT) which has the advantage of gaining a dual approach: targeting the developmentally abnormal angle structure, and an additional external filtration mechanism. With reported greater success than with either procedure performed alone.
Non-Penetrating Deep Sclerectomy (NPDS) is a technically more demanding non-penetrating glaucoma surgery, with some potential advantages as: increase in the intraocular pressure-lowering effect predictability, creation of new outflow pathways, and the non-penetration of the anterior chamber with avoidance of iridectomy.
AIM OF THE WORK
The aim of this work was comparing Combined Trabeculotomy-Trabeculectomy and Non-Penetrating Deep Sclerectomy in the surgical treatment of primary congenital glaucoma regarding their safety and efficacy.
Subjects and Methods
Subjects
This was a retrospective study that included sixty eyes; with the diagnosis of PCG selected randomly from the files of the ophthalmology department of Alexandria University. The cases were divided in to two groups each comprises 30 eyes, one of them were subjected to Combined Trabeculotomy-Trabeculectomy while the other group cases were subjected to Non-Penetrating Deep Sclerectomy as their primary surgical intervention.