**Product Specifications:**
**Brand:** YIDUN
**Product Name:** High Definition Crystal Presbyopic Glasses
**Focus:** Dedicated to the visual health of middle-aged and elderly individuals
**Type:** Presbyopic Glasses
**User Experience:** Comparable to leading brands
**Color:** Gold
**Frame Material:** Metal Alloy
**Lens Material:** Crystal
**Gender:** Unisex
**Lens Width:** 52mm
**Frame Height:** 37mm
**Nose Bridge Width:** 18mm
**Frame Width:** 133mm
**Temple Length:** 135mm
**Age and Prescription Reference Table:**
- **Age:** 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 70+
- **Prescription:** +100, +150, +200, +250, +300, +350, +400
**Features:** Anti-reflective, HD, UV400, High Definition, Scratch-resistant
**Additional Information:** M.50
