When giving their children glasses, many parents' first reaction is to choose lenses with good prevention and control effects, but often overlook the most basic safety issues. Children are lively and active, and they are prone to bumps and scratches during running, jumping, playing, and exercising. Once ordinary resin lenses break, they can easily scratch the eyes and cause irreversible damage. From a safety perspective, PC lenses are the preferred material for children's glasses.
PC lenses, also known as polycarbonate lenses and commonly referred to as "space lenses", have the most prominent advantage of super strong impact resistance. Ordinary resin lenses are prone to shattering into sharp fragments upon impact, while PC lenses have more than 10 times the impact strength of ordinary resin lenses and are not easily shattered under severe impact. Even if damaged, they will present honeycomb like cracks and will not form sharp fragments, greatly reducing the risk of eye injury.
For children who run and jump at school, attend physical education classes, and participate in extracurricular activities every day, this safety attribute is crucial. Many children wear glasses to play ball or run, and accidentally bump into them. Ordinary lenses are easy to break, but PC lenses can effectively avoid this risk.
In addition to safety, PC lenses also have two advantages that are very suitable for children. One is that it is lighter in weight, with PC lenses being about 30% lighter than ordinary resin lenses at the same degree. The child's nose bridge is still developing, and lighter lenses can reduce the pressure on the nose bridge, making it less likely to leave red marks and providing higher comfort. Children are also more willing to wear glasses for a long time. The second is natural UV protection, which can also protect children's eyes from UV damage during outdoor activities.
Many parents are concerned that PC lenses are not durable and prone to scratches. Early PC lenses did have low hardness and were prone to wear, but now the surface of PC lenses is coated with high-strength hard film, and their wear resistance is very close to that of ordinary resin lenses. Wearing it normally in daily life and paying attention to care can fully utilize the replacement cycle without worrying excessively about wear and tear.
Some people also think that PC lenses have high dispersion and poor clarity. Indeed, the Abbe number of PC material is slightly lower than that of ordinary resin, but for medium to low myopia within 600 degrees, the visual difference is very small, and children can hardly perceive it, which does not affect daily learning and life at all. Only for extremely high myopia, the impact of dispersion needs to be considered.
Equipping children with glasses, safety is always the top priority. Choosing a pair of safety and shatter resistant lenses is more fundamental and important than blindly pursuing high-end features. If children are usually active and enjoy sports, or if they are young and prone to falling and touching their glasses, PC material would be a very safe choice.
When Liuzhou Aokang Ophthalmology provides lenses for teenagers and children, it prioritizes the use of PC materials and places safety first. Aokang Ophthalmology's PC lenses are all equipped with standard dura mater, which balances safety, lightness, and clarity. At the same time, optometrists will also explain to parents the correct care methods for lenses to extend their lifespan.
Protecting children's eyesight, safety is the bottom line. Choosing the right lens material can ensure clear vision and avoid the risk of daily collisions, making parents more at ease.
Reminder: This article is a popular science sharing on eye protection, for reference only. Please consult professional optometrists for specific eyeglass fitting plans.
