what does 20/30 vision mean in a child?
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Answer: A best corrected visual acuity of 20/30 in one eye will typically have little long-term impact on your child's development. The most important factor in obtaining the best vision possible is a child having the most accurate refractive error correction (glasses).
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Your baby sees things best from 8 to 12 inches away. This is the perfect distance for gazing up into the eyes of mom or dad (a favorite thing to do!). Any farther than that, and newborns see mostly blurry shapes because they're nearsighted. At birth, a newborn's eyesight is between 20/200 and 20/400.
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PUPILLARY DISTANCE (PD) measures the distance between the centers of your pupils. This measurement is used to determine where you look through the lens of your glasses and should be as accurate as possible. The average adult's PD is between 54-74 mm; kids' are between 43-58 mm.
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Most government agencies and health care institutions agree that legal blindness is defined as a visual acuity (central vision) of 20/200 or worse in the best seeing eye or a visual field (peripheral vision) that is limited to only 20 degrees.
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Distant Vision - 20/20 or better in each eye separately, with or without correction. Intermediate Vision- 20/40 or better in each eye separately (Snellen equivalent), with or without correction at age 50 and over, as measured at 32 inches. Class 1 faa medical certificates are required for pilots of scheduled airliners.
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As you see, a person with a visual acuity of 20/200 has a prescription of -2.5. You are legally blind without correction, but you have normal vision with correction.
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Usually Patients with 20/80 vision would need glasses or contact lenses to aid them with basic tasks such as reading or writing. With 20/80 vision, patients are able to see objects at 20 feet away that those with normal or 20/20 vision can see from a distance of 80 feet.
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Children are referred to an ophthalmologist if their visual acuity is: Less than 20/50 when they are three years old. Less than 20/40 when they are four years old. Less than 20/30 when they are five years old.
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Common age-related vision changes After you pass the milestone age of 40, you'll notice it's more difficult to focus on objects up close. This is because the lens inside the eye begins to lose its ability to change shape — a process called presbyopia.
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This is a fairly mild amount of nearsightedness. If you are -4.25, that means you have 4 and 1/4 diopters of nearsightedness. This is more nearsighted than -1.00, and requires stronger (thicker) lenses. Similarly, +1.00 would be a small amount of farsightedness and +5 would be more.
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Amblyopia, sometimes referred to as "lazy eye," occurs when one or both eyes do not develop normal vision during early childhood. Babies are not born with 20/20 vision in each eye.
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As most of us know, the “30” part of the name refers to the fact that this threshold exam tests the visual field extending out to 30 degrees from fixation. Importantly, it's 30 degrees in all four directions, thus it tests the central 60 degrees of the patient's visual field.
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When the vision in the better eye with best possible glasses correction is: 20/30 to 20/60, this is considered mild vision loss, or near-normal vision. 20/70 to 20/160, this is considered moderate visual impairment, or moderate low vision. 20/200 or worse, this is considered severe visual impairment, or severe low ...
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At birth, a newborn's eyesight is between 20/200 and 20/400. Their eyes are sensitive to bright light, so they're more likely to open their eyes in low light. Don't worry if your baby's eyes sometimes cross or drift outward (go "wall-eyed"). This is normal until your baby's vision improves and eye muscles strengthen.
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Legally Blind Criteria Visual acuity of 20/200 or worse in the eye you can see out of best (with the best correction)
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Vision development: Months 2 and 3 Infants develop sharper visual acuity during this period, and their eyes begin to move better as a team. Your child should be following moving objects at this stage and starting to reach for things he sees.
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So if your vision is still at 20/80, then you are not considered legally blind by definition. Remember, however, that visual acuity does not fully indicate if a person has vision problems.