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Phone: (US) (800) 410-1618  (INT) +1 (267) 203-8665   Fax: 1 (800) 468-9301

Phone:   (US) (800) 410-1618     (INT) +1 (267) 203-8665
Fax:   1 (800) 468-9301

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Logo for Chadwick Optical with the company name in blue and green.
  • Learning Center
    • Why a Learning Center?
    • Principles of Vision
      • A Tour of Your Vision
      • Central vs. Peripheral Vision
      • What is a Refraction?
    • Opticianry Basics
      • How do Glasses Work?
      • How Do Bifocals Work?
      • Basics of Prism
    • Opticianry – Troubleshooting
      • Intermediate/Computer Glasses
      • High Plus
      • High Minus
      • High Adds
      • Prism – Single Vision
      • Prism – Multi-Focal
      • Wrap Frames
      • Progressives
    • How Lenses Are Made
      • Mold-Making
      • Lens Casting
      • Surfacing
      • Coating
      • Edging (Glazing)
      • Lens Tinting
      • Thin-Film Coating
    • Vision Conditions & Rehabilitation
      • Low Vision & Field Loss
        • What is Having Low Vision Like?
        • Homonymous Hemianopia
      • Neuro-Visual Conditions
        • Migraines
        • Concussions And Other TBIs
        • Photosensitive Epilepsy
      • Binocular Vision Dysfunction 
        • Aniseikonia
        • Convergence Insufficiency
    • The Peli Lens™
      • The Peli Lens for Driving
      • Resources for Doctors
      • Resources for Patients
    • Ask Chadwick
  • Optical Lab
    • Complicated RX
      • High Add
      • High Minus
      • High Plus
      • Multipart
    • Finishing Services
    • Lens Offerings
      • Avulux Migraine Glasses
      • EnChroma Low Vision
      • SHAW™ Lenses
    • Tints & Filters
      • Tints & the Tinting Process 
      • Tint Library
  • Products
    • ADAVI Low Vision Phone Adapter
    • The Peli Lens™
    • Aire-O-Lite Lens Blanks
    • Low Vision Devices
    • Clips & Attachments
    • Frames & Fitovers
    • Diagnostic & Assessment Kits
      • Magna-5 Evaluation Kit
      • Peli Evaluation Kit
      • Size Lens Kit
      • Tint Selection Kit
  • Resources
    • Documents for Download
      • Order Form and Business Reply Card
      • Pricing Guide
      • Printable Charts
      • Product Brochures
      • Clip-On Shape Guide
    • Optical Calculators
    • Tint Comparison Tools
      • Low Vision
      • NoIR
      • Traumatic Brain Injury
    • Shop Chadwick
  • About
    • About Us
    • Careers
    • Contact Us
    • Staff
    • The Chadwick Way
  • Search
Older man removing his glasses while squinting, appearing fatigued or strained, with a newspaper in his hand.

Vision Conditions & Rehabilitation

Learn about various vision conditions, how they impact daily life, and rehabilitation methods that help people make the most of their remaining sight.

Brain diagram showing the effects of homonymous homonopia.

Low Vision & Field Loss

Doctor examining xray of concussion patient

Neuro-Visual Conditions

Overlaid image of a hand raised with fingers spread, illustrating the double vision effect often associated with binocular vision dysfunction.

Binocular Vision Dysfunction

Need something specific?
Give us a shout!


596 Main St Suite D
Schwenksville, PA 19473
Phone (US): 800-410-1618
Phone (INT): 267-203-8665
Fax: 800-468-9301

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