Our High-Def Expanded Loupes are lightweight and reliable for many popular healthcare professionals. Boasting a magnification range from 2.0x to 3.8x these TTL loupes are popular among dentists, hygienists, surgeons, veterinarians and students looking for top quality loupes without going broke. with strong depth of view. These TTL loupes have a high depth of view and will eliminate that neck and back pain you might be having. Your vision through these loupes will enhance your precision and care.