Choosing the optical lens material suitable for the elderly requires comprehensive consideration of the elderly’s eye needs, physical conditions and living habits. The following is a specific analysis of the suitability of resin lenses, PC lenses and glass lenses for the elderly:
Resin lens
advantage
Light and comfortable: the elderly usually have a decline in physical function, high sensitivity to the weight of glasses, light weight of resin lenses, can reduce the burden on the bridge of the nose and ears, long-term wear is not easy to produce pressure, improve wearing comfort.
Safe and reliable: resin lenses have strong impact resistance, are not easy to break, even in accidental collision or drop, can reduce the risk of damage to the eyes and face, and are safer for the elderly who are relatively not agile.
Strong customizable: Personalized lens design and customization can be carried out according to the specific vision problems of the elderly, such as simultaneous nearsightedness, farsightedness, astigmatism and presbyopia, to meet different visual needs.
Disadvantages: The surface is relatively easy to scratch, requiring the elderly to be extra careful in daily use and cleaning.
PC lens
advantage
Ultra-light material: PC lens is the lightest of all lens materials, for the elderly who wear glasses for a long time, it can minimize the wearing pressure and improve the wearing experience.
High impact resistance: has excellent toughness, can effectively resist external impact, very suitable for the elderly who may have the risk of accidental collision, such as in some simple outdoor activities or daily housework.
Disadvantages: PC lens Abbe number is low, will affect the visual clarity to a certain extent, for the elderly with high visual quality requirements may not be suitable. And its surface hardness is low, very wear-resistant, requires special care.
Glass lens
advantage
Clear vision: Glass lenses have excellent optical properties and high light transmittance, which can provide very clear and real visual effects for the elderly, helping them to carry out daily activities such as reading, reading newspapers and watching TV.
Good stability: In the environment with large changes in temperature and humidity, the size and optical properties of the glass lens are relatively stable, and will not be deformed as easily as the resin lens is affected by the environment, which can ensure the stability of the vision correction effect.
Disadvantages: The weight of the glass lens is large, which is easy to cause greater pressure on the nose bridge and ears of the elderly, resulting in discomfort. Moreover, its fragile characteristics also increase the safety risks during use.
On the whole, resin lenses are usually an ideal choice for the elderly. If the elderly have high requirements for visual clarity and the daily activity environment is relatively simple and not easy to scratch the lens, glass lenses can also be considered; If the elderly often exercise or engage in some activities that may have a risk of collision, the high safety of PC lenses is more appropriate.
Post time: Feb-28-2025