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Treatment should be initiated promptly after the
diagnosis is established. Medical treatment will often decrease the intraocular
pressure, but will rarely control it satisfactorily. Surgery is hence
indicated to effect permanent reduction of the intraocular pressure. |
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Goniosurgery, filtration surgery, and implant surgery are
the three options for the management of congenital glaucoma. In
goniosurgery (goniotomy, trabeculotomy), the abnormal trabeculum is incised to
enhance the passage of fluid into the filtering channels. For many patients with
congenital glaucoma this can be a very effective operation. Children with more
severe defects of the filtration channels often do not respond to goniosurgery,
and filtration procedures may be required to bypass the malfunctioning system,
creating a new egress passage for the aqueous humor. The results of this
type of surgery may be disappointing due to the failure of the new passage to
remain patent. When the filtration angle defect is seen on gonioscopy to
be mild to moderate, with a visible ciliary body band, angle surgery is
effective in 75% of cases. Repeat surgery in an unoperated area may be necessary
to achieve an adequate lowering of the eye pressure. In case of failure of
classic filtration surgery, implants (Molteno, Ahmed, others) may be used to
drain the aqueous fluid from the eye by way of a silicone tube to an episcleral
reservoir. |
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