Sentinels: FL41 Non-prescription or Prescription?:Prescription (Single Vision) Important to know:

Important to know:

Drop the package at your local post office — it’s that simple

Whether outdoors in sunlight or indoors under bright lighting

or eye strain

fluorescent flicker

Sentinels: FL41 Non-prescription or Prescription?:Prescription (Single Vision) Important to know:FL 41 Eyewear: Made in Australia for Migraine Relief If you suffer from migraines, light sensitivity, or eye strain, FL 41 eyewear is a natural way to find relief. Crafted in Australia to the highest standards, these glasses feature a specially developed FL 41 tint designed to filter out the harsh blue and fluorescent light that often triggers headaches and visual discomfort. Unlike ordinary tinted lenses, FL 41 technology has been clinically studied