Surgical cassette with bubble separating structure

A surgical cassette, comprising:

• an aspiration chamber, comprising:
• a first entry for fluidly coupling to a surgical device;
• a second entry for fluidly coupling to a source of vacuum in a surgical console for aspirating liquid infusion fluid from said surgical device;
• and
• a bubble separating structure disposed within said aspiration chamber that divides said aspiration chamber into a first section and a second section, said bubble separating structure having:
• a first support surface for mating with a first internal wall of said aspiration chamber;
• a second support surface for mating with a second internal wall of said aspiration chamber;
• and
• a dividing surface disposed between said first support surface and said second support surface;
• wherein said dividing surface has a first opening that allows passage of liquid but prevents passage of air bubbles from said first section to said second section, said first support surface has a second opening that allows liquid from said second section to return to said first section, and said second section collects fluid for measuring a fluid level in said aspiration chamber.