Please choose the correct ending to complete the given sentence: Health: [header] How to use contact lenses [title] Choose the right contact lenses. [step] Your optometrist may offer you various options depending on your particular eyes and needs. Understand what you want from your contacts.

Ending1: Do you prefer colored contact lenses or tinted lenses? If you like colored contact lenses, then make sure to choose tinted contacts. [substeps] To make and buy contact lenses, look at photos online, or ask your optometrist what lenses are in his or her recommended color range. Ending2: You should think about what you will need most of the time : [substeps] Water glasses. Water glasses are plastic type lenses that come in a variety of unique sizes. Ending3: [substeps] If your eye strain is due to blurry vision, you may have a preexisting eye condition. If you have vision problems that won't go away, contact lenses may help solve this condition. Ending4: [substeps] Length of use: some contacts are intended to be worn just for one day, then thrown out. Others are designed to be reused for an entire year.

Answer format: ending1/ending2/ending3/ending4