MODIFIED MOBILE PHONE - A NEW LOW VISION AID Dr. Babu Rajendran The Eye Research Foundation Dr. D....
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Transcript of MODIFIED MOBILE PHONE - A NEW LOW VISION AID Dr. Babu Rajendran The Eye Research Foundation Dr. D....
MODIFIED MOBILE PHONE - A NEW LOW VISION AID
Dr. Babu RajendranThe Eye Research Foundation
Dr. D. Janardhana ReddyVijaya 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 aLOW 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 requirementMust 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
OPTICIN FRONT
OFCAMERA LENS
TAPEHOLDINGHAPTICS
OPTICIN FRONT
OFCAMERA LENS
*LARGER POWERS GIVE MORE MAGNIFICATION BUT FOCUS CLOSER TO THE PAPER & REDUCES RANGE
VOILA!!
CAMERA IN NORMAL MODE
CAMERA IN NORMAL MODE
CAMERA WITHIOL ATTACHEDCAMERA WITHIOL 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
DISADVANTAGECAMERA CANNOT BE USED FOR REGULAR
PHOTOGRAPHY IF LENS IS ATTACHED
This is a PROTOTYPE – PROOF OF CONCEPTCOMMERCIAL PRODUCTION WILL FIND WAYS TO FIX IOL
MORE EFFICIENTLY AND EVEN REMOVABLE AND REUSABLE