A thorough eye exam by an optometrist will help to determine the cause of your blindness or partial loss of vision. Your eye doctor will administer a series of tests that measure the clarity of your vision, the function of your eye muscles, and how your pupils react to light. They’ll examine the general health of your eyes using a slit lamp, which is a low-power microscope paired with a high-intensity light.
Diagnosing Blindness in Infants
A pediatrician will screen your baby for eye problems shortly after birth. At 6 months of age, you should have an eye doctor or pediatrician check your child again for visual acuity, focus, and eye alignment. The doctor will look at your baby’s eye structures and see whether they can follow a light or colorful object with their eyes.
Your child should be able to pay attention to visual stimuli by 6 to 8 weeks of age. If your child doesn’t react to light shining in their eyes or focus on colorful objects by 2 to 3 months of age, have their eyes examined right away. You should have their eyes examined if you notice crossed eyes or any other symptoms of impaired vision.