Systane ® Gel Drops relieves dry eye irritation when you need it most. To create a thicker eye drops for people suffering from severe dry eye symptoms, Systane ® Gel Drops form a protective cover over your eyes to provide lasting relief. 1 Systane ® Gel Drops can be used during the day and night. Available in 10 ml bottles, Systane ® Gel Drops provide easy fall protection with a gel protection.