MODIFIED MOBILE PHONE - A NEW LOW VISION AID Dr. Babu Rajendran The Eye Research Foundation Dr. D. Janardhana Reddy Vijaya Hospital, Chennai FP168; E-Poster 153

INTRODUCTION Low vision devices can often improve the reading capabilities of people with Macular Degeneration Other Macular Pathologies

Such magnifiers include spectacles, telescopes, hand or stand-alone magnifying glasses or closed circuit television. Some are inefficient and clumsy, others are extremely expensive. (From 1,000 - > 25,000) INTRODUCTION

AIM OF STUDY To develop a LOW VISION AID for reading that is Cheap Effective Easy to use Portable

MATERIALS USED Most commonly used item Available across the country Even Most remote Villages Extremely Cheap versions available THE MOBILE PHONE

Camera Phones cost ~ 1400/= & upwards Telephoto & Macro NOT required Even old unused phones will do As long as camera is working MOBILE PHONE Minimum requirement Must have a camera

MOBILE PHONE Some Cameras have Macro feature High End have Magnifying software

PROBLEM 1. How to get magnification 2. How to get close up without macro 3. How to maintain clarity

SOLUTION ATTACH AN IOL +12 D * OPTIC IN FRONT OF CAMERA LENS FIX HAPTIC WITH CELLOTAPE OPTIC IN FRONT OF CAMERA LENS TAPE HOLDING HAPTICS OPTIC IN FRONT OF CAMERA LENS * LARGER POWERS GIVE MORE MAGNIFICATION BUT FOCUS CLOSER TO THE PAPER & REDUCES RANGE

VOILA!! CAMERA IN NORMAL MODE CAMERA IN NORMAL MODE CAMERA WITH IOL ATTACHED CAMERA WITH IOL ATTACHED

MOBILE PHONE Patient will have Mobile Phone But NO access to IOL Hence Doctor or Clinic must fix the IOL Teach Patient how to use the LVA Maybe even provide a spare IOL

COST OF MOBILE 000 (If patient already has Mobile) COST OF IOL 200 TOTAL 200 COST DISADVANTAGE CAMERA CANNOT BE USED FOR REGULAR PHOTOGRAPHY IF LENS IS ATTACHED This is a PROTOTYPE – PROOF OF CONCEPT COMMERCIAL PRODUCTION WILL FIND WAYS TO FIX IOL MORE EFFICIENTLY AND EVEN REMOVABLE AND REUSABLE