Healthy Eyes and Ears
Your newly adopted infant has a lot of information to take in. Proper screening will ensure that he's tuned in.
By Deborah Borchers, M.D.
The American Academy of Pediatrics recommends hearing screening for all newborns and an eye exam in the first six months of life—for good reason. Poor prenatal care or illness during pregnancy, premature birth, extended use of oxygen after birth, infection, jaundice, and genetic conditions are the most common causes of vision and hearing problems. If left untreated, such problems can lead to serious delays in language development or long-term visual impairment. When you adopt a newborn or infant, what should you be watching and listening for?
Your child's primary care physician should check his vision as a newborn (to look for infections, cataracts, and eye defects), at six months (to check for alignment of the eyes), at three to four years old (to check vision and alignment), and annually from age five. He should refer you to a specialist if any of the exams show abnormalities.
There are many signs that indicate healthy vision development. Possible red flags include squinting, closing one eye to see better, fluttering or bulging eyes, or repeated infections. The most common vision problems include strabismus, or crossed eyes, meaning that one or both eyes turn inward. This occurs in four percent of children, and may be caused by tight eye muscles or excessive farsightedness. Early detection of this condition is important to prevent double vision. Amblyopia, or lazy eye, happens in two percent of children. Lazy eye causes the vision in the weaker, turned-in eye to "switch off," and can lead to permanent vision loss in that eye.
Parents may have a harder time detecting pseudostrabismus, a condition that affects children whose eyes appear to be crossed, but aren't, and who have a flat nasal bridge (common in children of African and Asian descent).
More than 65 percent of children born in the U.S. are screened for hearing loss as a routine matter before they leave the hospital. If you don't receive a record of this screening, or if you adopted internationally, schedule an examination as soon as possible. Observe whether your child reacts to loud noises as an infant and turns to find the source of a sound by six months. Early detection of hearing loss is crucial to language development. (If your child is older, and has language or socialization delays, make sure he’s tested.)
Even if your child passes the newborn screen, your pediatrician should continue to monitor hearing in cases of premature birth, jaundice, abnormalities in the ears, face, or skull, or if there's a birth family history of hearing loss. Children should be screened annually from age five.
Untreated ear infections can lead to fluid build-up in the middle ear, causing conductive hearing loss, which muffles sounds. Most pediatricians recommend a hearing exam if a child has had repeated ear infections or middle ear fluid for more than three months. Conductive hearing loss is usually reversible, and is treated by surgically inserting tubes into the eardrum to permit ventilation. Ear infections should taper off as a child's Eustachian tube matures. Nerve damage or inner ear problems may cause permanent hearing loss, but even this can be remedied with hearing aids or cochlear implants, surgically implanted devices that stimulate the auditory nerve. Children who have these implants done at an early age, and who receive speech therapy, have an excellent chance of normal speech.
|VISION AND HEARING DEVELOPMENT
Birth: Can only focus on objects eight to 10 inches away. Eyes may look crossed.
1-2 Months: Looks at faces and black-and-white or high-contrast images. Can follow an object moved slowly in front of face for 90 degrees.
2-3 Months: Should be watching faces, objects, and light as they move. Looks at hands.
4-5 Months: Begins to reach for or bat at objects. Will look at reflection in mirror.
5-7 Months: Can see in full color, and may prefer certain colors. Will turn head to see an object. Eyes should be aligned.
7-11 Months: Can stare at small objects. Should be developing depth perception. Begins to enjoy peek-a-boo.
11-14 Months: Can track quickly moving objects. Begins to recognize familiar objects/pictures. May point to object when asked.
18-24 Months: Can focus on near and far objects. Can scribble with crayon or pencil, and may imitate drawing circle or straight line.
Birth-6 Months: Turns head toward sound. Distinguishes mother’s and father’s voices from others. Makes vowel sounds.
6-12 Months: Adds a few consonant sounds to vowel sounds. Babbles (ba-ba-ba, da-da, ma-ma).
12-18 Months: Attaches "mama" or "dada" to the right person. Answers simple questions nonverbally, and follows simple directions with gestures. Says a few simple words to label objects.
18-24 Months: Says 10 or more words, begins to combine them ("want ball"). May be able to follow a two-step command ("Go to the bedroom and get the toy").
2-3 Years: Learns and speaks more words, making simple sentences two to four words long. Follows simple instructions. Repeats words overheard in conversations. Uses descriptive words (big, happy), plurals, and regular past-tense verbs.
Deborah Borchers, M.D., is a founding member of the American Academy of Pediatrics Section on Adoption and Foster Care.
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