Please choose the correct ending to complete the given sentence: Health: [header] How to know if you need new glasses [title] See your optometrist about frequent headaches. [step] Many people's vision slowly changes over time. Essentially, your eyes and brain will be straining to correct your vision if they need more assistance than your glasses provide, leading to fatigue and discomfort.

Ending1: [substeps] Having a bright vision is notorious for causes you're unable to deal with-such as conjunctivitis-or if your vision changes at night. [title] Get glasses or glasses that can focus with your optometrist. Ending2: Consider getting glasses that used to help you address headaches and discomfort. [title] Ask about hydrotherapy for optometriosis, especially when you're lactating. Ending3: If this is the case, it may be helpful to talk with your optometrist about your medical history and your vision. [substeps] Try to discuss your treatment options with them. Ending4: As such, even slight changes in your vision can lead to headaches if you don't keep your prescription up to date. [substeps] If you notice a gradual increase in the frequency of headaches you experience, schedule an eye exam with your optometrist to determine whether your vision is the cause.

Answer format: ending1/ending2/ending3/ending4