Staff should support eyewear browsing by being available, answering the specific question the customer has, and then giving the shopper room to compare. The goal is assisted self-service, not constant supervision.
Start with a simple opener
A short question such as "Are you looking for readers or sunglasses?" can orient the shopper without taking over the decision.
For readers, help with navigation
Staff can point out where powers are organized and explain that customers can compare over-the-counter reader strengths for near work. They should not diagnose vision conditions or prescribe a power.
For sunglasses, help with location and features
Staff can point out style groups or verified product features, then allow the customer to use the mirror and compare fit.
Know when to step away
Once the shopper understands the display, hover less. Eyewear is personal and comparison-heavy; customers often make better decisions with a little space.
Keep the fixture doing most of the work
Clear signage, labels, mirror access, and organization should answer common questions before staff are needed.
Staff should not provide eye examinations, diagnosis, or prescription advice.