Selectable Varied Control Valve Systems For IOP Control Systems

A method performed by an IOP control system that drains aqueous from an anterior chamber of the eye to a drainage location of the eye, comprising:

• detecting pressure within an anterior chamber of the eye;
• detecting pressure at a drainage location of the eye;
• determining whether to adjust drainage aqueous flow based on the detected pressures by comparing the detected pressures in both the anterior chamber and the drainage location to pre-established acceptable pressures;
• and
• adjusting drainage aqueous flow from the anterior chamber by adjusting access to one of a plurality of parallel flow paths to achieve pressures in both the anterior chamber and the drainage location corresponding to the acceptable pressures.

A selectable IOP valve for implantation in an eye of a patient, comprising:

• a drainage pathway arranged to carry aqueous from an anterior chamber of an eye;
• a first flow control pathway in communication with the drainage pathway;
• and
• a second flow control pathway in communication with the drainage pathway;
• the first and second flow control pathways being arranged to carry aqueous in parallel from the drainage pathway.