Direct visualization system for glaucoma treatment

A method of measuring anatomical features of an eye and implanting an ocular implant, comprising:

• forming an incision in the cornea of the eye into an anterior chamber of the eye;
• introducing through the incision a distal end of a device for measuring at least one anatomical feature of the eye, the device comprising a handle with a wire extending out of a distal end of the handle and a distal end of the wire configured to be pressed against ocular tissue in the eye, the wire including at least one indicator for measuring at least one anatomical feature of the eye;
• passing the distal end of the wire through the incision and across the anterior chamber of the eye;
• positioning the distal end of the wire against ocular tissue below the scleral spur and above the iris;
• and
• measuring at least one anatomical feature of the eye by identifying one or more indicators along a length of the wire relative to one or more anatomical features.