Vial sizes for preservative-free eye drops sold in the US range from 0.3mL to 0.9mL. For the best deal, look for the ones with the highest volume per vial.

Vial Size (mL) # vials per box Total volume (mL) Is 10mL bottle also available?
Product Company
0.3 30 9 Yes Biotrue Hydration Boost Bausch & Lomb
30 9 Yes Oasis Tears Oasis
30 9 Yes Oasis Tears Plus Oasis
0.4 28 11.2 - Bion Tears Alcon
25 10 - Blink Tears discontinued Bausch & Lomb
30
12 - Ivizia Severe Gel Théa
30
12 - Refresh Celluvisc Abbvie
30
12 - Refresh Classic Abbvie
30
12 - Refresh Digital Abbvie
30
12 Yes ("Refresh Tears PF") Refresh Optive Abbvie
30
12 - Refresh Optive Advanced Abbvie
30
12 - Refresh Optive Mega-3 Abbvie
30
12 - Refresh Plus Abbvie
30
12 Yes Refresh Relieva Abbvie
30
12 - Retaine MGD OcuSoft
0.5 30
15 Yes Optase Dry Eye Intense Scope
30
15 Yes Systane Complete Alcon
0.6 30
18 - Soothe Bausch & Lomb
30
18 - Thera Tears Prestige
30
18 - Thera Tears Extra Prestige
30
18 - Thera Tears Liquid Gel Prestige
0.7 30
21 - Systane Original Alcon
30
21 Yes Systane Hydration Alcon
25 17.5 Yes Systane Ultra Alcon
0.9 36 32.4 - Genteal Tears Alcon