Can u tell me how can I improve my eyes..?

how can you improve your eye sight?
    Eye massage
    Sleep enough hours
    Eye muscles strengthening exercises
    Eye lubricating drops like refresh
    Not to wear contact lenses, especially commercial ones
    Always wear sunglasses that provide broad spectrum protection when out in the sun.
    Do not smoke.
    Wash your hands before putting in or taking out your lenses to reduce the risk of infection.
    Wear goggles when operating heavy machinery or engaging in activities such as painting and home repairs.
    Laser surgeries
What are the causes of eye sight problems?
    stigmatism
Abrasions to the cornea
    eye lens darkening
    Corneal opacity (scarring)
    Infectious retinitis
    Age-related macular degeneration
    Migraine
    Optic neuritis
    diabetic retinopathy
    Trauma or injury to the eyes