Start with UV protection (look for 100% UVA/UVB). Choose a brown-tinted lens that enhances contrast and warmth without overly darkening, then pick a frame that fits your face size and is comfortable for all-day wear.

Key factors are UV protection, lens color and coatings (e.g., polarization), lens material, frame size/shape, and overall build quality and comfort.

Consider polarization for glare-heavy use, gradient vs solid tint for transitions between indoors and outdoors, and frame material and hardware that match your daily wardrobe and activities.

Prioritize polarization and a warm brown tint to reduce glare and preserve color perception; ensure a secure, comfortable fit and adequate lens coverage to block peripheral glare.