Guidelines for purchasing sunglasses
Why you buy sunglasses make sure they provide you with protection from UV damage.
Also make sure you consider when you will be wearing them – your sunglasses need to fit the purpose they are needed for. Consider if you will be using them when lying by the pool, driving long distances, or playing an energetic sport. Make sure that the protection sunglasses provide gives the best coverage, no matter what you are doing.
Also, check that the glasses are labelled as either ‘sunglasses’ or as ‘special purpose sunglasses’ and not as ‘fashion spectacles’.
Sunglasses must have a label that states that they comply with the requirements of the Australian/New Zealand Standard for Sunglasses and Fashion Spectacles, AS/NZS 1067. This standard sets limits for the allowable light and UVR transmittances of fashion spectacles and sunglasses in both adults and children’s sizes.
Sunglasses and fashion spectacles are classified into five categories.
Lens category 0:
Fashion spectacles – These are not sunglasses, they have very low ability to reduce sun glare and provide limited or no UV protection.
Lens category 1:
Fashion spectacles – these are not sunglasses, but provide limited sun glare reduction and some UV protection.
Lens category 2:
Sunglasses – they provide a medium level of sun glare reduction and good UV protection.
Lens category 3:
Sunglasses – a high level of sun glare reduction and good UV protection. This is the category of protection that your optometrist will prescribe for you.
Lens category 4:
Special purpose sunglasses that provide a very high level of sun glare reduction and good UV protection. The Lens category 4 sunglasses are very dark and must not be used when driving at any time.