5-in-1 Functionality: Measures PD (Pupillary Distance), PH (Pupil Height), CVD (Corneal Vertex Distance), FFA (Face Form Angle), PT (Pantoscopic Tilt), and Pupil/Iris Diameter. Clear markings and ergonomic design make measurements quick and hassle-free. Clear, durable acrylic ensures accurate readings and long-lasting use. Reference Ranges:​PD (Pupillary Distance):​Typically ranges between 54-74mm.PH (Pupillary Height):​Generally falls within 30mm.CVD (Corneal Vertical Distance):​Normally between 10-13.75mm.PT (Pantoscopic Tilt): Usually spans 8°-15°.FFA (Face Form Angle): Typically ranges from 170°-180°. Instruction Manual Included: Step-by-step guide ensures accurate use, even for beginners. Perfect for opticians, eyewear retailers, and anyone needing accurate eyewear fitting at home, this versatile 5-in-1 PD Ruler delivers precise measurements for professional and personal use. Simplify eyewear fitting for standard frames, progressive lenses, and lens replacements with one efficient tool.
Designed for both eyecare professionals and home users – Easily measure PD and other key metrics by following the digital manual. One tool handles multiple measurements.
Vision Correction Support：Quickly capture PD, PH, and CVD data to minimize discomfort from ill-fitted glasses (e.g., headaches/blurriness).
Contact Lens Fitting：Measure corneal vertical diameter (CVD) and iris diameter for precise base curve/diameter selection.
Preventive Eye Tracking:Monitor iris/pupil diameter changes to detect potential abnormalities early.

Package Includes
1× 5-in-1 PD Ruler Medimeter