-- -Free (contact lens solution)

• ___-Free (contact lens solution brand)
• Eye-related prefix
• __-Free: contact lens solution brand
• For vision, in brand names
• Eye opening?
• ___-Free (contact lens solution)
• Vision-related, in product names
• Eye opener?

Wikipedia Word definitions in Wikipedia
Opti may refer to Daihatsu Opti , a car OPTi Inc. , a manufacturer of computer components OPTI Canada , an oil company Optimist (dinghy) , a type of boat