Quick Answer
What should you look for in sunglasses?
Verify UV protection, then consider fit, coverage, visible-light tint, polarisation if useful, prescription compatibility and the environments where you will wear them.
1. Verify UV protection separately from tint
Dark lenses can reduce visible light without necessarily proving UV performance. Product specifications should identify UV protection rather than leaving you to judge from colour alone.
- Check the actual UV specification
- Do not equate darker tint with better UV protection
- Consider coverage around the eyes as well as the lens
2. Understand polarisation
Polarised lenses are designed to reduce certain reflected glare, often from horizontal surfaces. This can be useful in some outdoor settings, but polarisation and UV protection are different properties.
- Ask whether the actual model is polarised
- Check whether polarisation affects viewing of particular displays
- Do not assume polarised automatically means better for every task
3. Choose tint for environment and preference
Tint colour and density affect visible-light transmission and appearance. Different environments can favour different choices, but no one tint is universally best.
- Think about driving, travel or everyday use
- Consider colour perception if it matters for your activity
- Use product specifications rather than fashion language alone
4. Consider prescription sunwear if needed
If you require optical correction outdoors, prescription sunglasses can combine prescribed correction with sun-lens features when a suitable product and frame are selected.
- Bring a current prescription
- Check frame and prescription compatibility
- Discuss the lens features you actually need
Light sensitivity, eye disease or unusual visual symptoms can require clinical assessment. This guide explains sunglass product selection rather than treating health conditions.