Material benefits for AO

AO describes Transitions Brown as one of the most advanced lens materials currently available, stating that with the AO b'Active, it is the perfect lens for the active presbyope who wants a versatile lens that quickly adjusts to changing light conditions.
'For the active presbyope who values the darkness of a variable tint above all else Ð AO b'Active in Transitions Brown darkens to an intense solid on exposure to sunlight. Transitions Brown offers 100 per cent built-in UV protection for the wearer and consistent activation performance regardless of temperature.'
Details from your ordering laboratory, or American Optical on 020 8205 0808.