Unlike adults, children who need glasses may develop a second problem, called amblyopia or lazy eye. Amblyopia is more likely to occur if the prescription needed to correct one eye is stronger than the other. Eyeglasses for Infants and Children Prescriptions for glasses can be measured in even the youngest and most uncooperative children by using a special instrument called a retinoscope to analyze light reflected through the pupil from the back of the eye. Most lenses today, especially for children, are made of plastic, which is stronger and lighter than glass. It is a good idea to get a scratch-resistant coating on plastic lenses.
Children can be rough with glasses and plastic lenses scratch easily.
Color tints or tints that respond to changes in light can be incorporated into lenses. For children, the tint should not be so dark that the child has trouble seeing indoors. Frames come in all shapes and sizes. Choose one that fits comfortably but securely. There are devices available to keep glasses in place, a good idea for active children and young children with flat nasal bridges.