Medical & Surgical Ophthalmology

Valves or drainage devices

What are valves or drainage devices?

The placement of valves or drainage devices is a surgical procedure to treat glaucoma, these surgeries consists of inserting a device that connects the intraocular space with the subconjunctival, to drain the aqueous humor from the eye and lower the intraocular pressure.

In which cases is it done?

This procedure is indicated in those patients where it is not possible to perform other surgical procedures such as trabeculectomy or non-perforating sclerectomy.

Previous exams

A complete ophthalmologic examination should be performed

During the intervention

The surgeon will place the valves or drainage devices in the anterior chamber, in the posterior chamber (in the case that the patient has undergone cataract surgery) or in the vitreous chamber (in the case of previous vitrectomy).

This surgery can be performed alone, or in conjunction with cataract surgery.

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