Intravascular devices, systems, and methods to address eye disorders

A balloon catheter, comprising:

• a balloon;
• and
• a shaft, including:
• an outer shaft portion, wherein a proximal neck of the balloon is coupled to a distal end of the outer portion;
• and
• a multilayered inner shaft portion extending through the balloon to a distal tip, wherein a distal neck of the balloon is coupled to the multilayered inner shaft portion, the multilayered inner shaft portion having:
• an inner liner;
• a metallic support middle layer;
• and
• an outer layer;
• wherein each of the outer shaft portion and the inner shaft portion extend between a proximal end of the shaft and a distal end of the shaft.

A balloon catheter, comprising:

• a catheter shaft outer portion;
• a catheter shaft inner portion disposed radially within the outer portion and defining a guidewire lumen extending therethrough, an annular space between the outer portion and the inner portion defining an inflation lumen;
• a distal tip section, wherein, in a curved configuration, the distal tip section includes at least a first curve in a first direction and a second curve in a second direction different than the first direction;
• and
• a balloon in fluid communication with the inflation lumen, wherein a proximal neck of the balloon is coupled to the outer portion and a distal neck of the balloon is coupled to the inner portion.