Dr.Sonawane Atul Vijay,
INTRODUCTION
JACKSTER AND WEBSTER FIRST PUBLISHED RETINAL IMAGES IN 1886
CARL ZIESS INTRODUCED THE FIRST COMMERCIAL FUNDUS CAMERA IN 1926
TRADITIONAL FUNDUS CAMERAS OFFER GOOD QUALITY IMAGES BUT ARE BULKY, OFFICE BASED,AND COSTLY
DUE TO TECHNOLOGICAL ADVANCEMENTS IN SMARTPHONES AND TELECOMUNICATIONS IN RECENT TIMES ,IT HAS BEEN POSSIBLE TO DO FUNDUS EXAMINATION,CAPTURE / STORE RETINAL IMAGES AND TRANSMIST THESE IMAGES FOR SEEKING EXPERT OPINION VIA INTERNET FOR SCREENING PROGGRAMES FOR DIABETIC RETINOPATHY AND SECOND OPINION FROM RETINAL COLLEUGES.
ASSEMMBLY OF THIS DO IT YOURSELF SMARTPHONE BASED FUNDUS CAMERA
1.A SELFIE STICK AND A CAR MOBILE HOLDER IS USED
2 .FIRST THE MOBILE HOLDING UNIT OF CAR MOBILE HOLDER IS DISENGAGED FROM THE MAIN BODY OF CAR MOBILE HOLDER BY UNSCREWING IT
- THEN THE MOBILE HOLDING UNIT OF THE SELFIE STICK IS DISENGAGED FROM MAIN BODY OF SELFIE STICK BY UNSCREWING IT
4.A GROOVE IS MADE IN THE MOBILE HOLDING UNIT OF SELFIE STICK WITH THE HACKSAW BLADE
5.THE MAIN BODY OF CAR MOBILE HOLDER IS THEN ENGAGED IN THE GROOVE MADE IN MOBILE HOLDING UNIT OF SELFIE STICK AND THIS JOINT IS STRENGTHEND BY FASTENING IT WITH A ELECTRIC INSULATION TAPE USED DAY TO DAY BY ELECTRICIANS
6.THE DEVICE IS READY TO USE NOW
7.THE MOBILE PHONE IS FIRMLY ATTACHED TO ONE END OF THIS DEVICE BY SUCTION MECHANISM OF THE CAR MOBILE HOLDER
8.A 20 D/28 D IS FIRMLY HELD IN THE MOBILE HOLDING UNIT OF SELFIE STICK ATTACHED TO THE OTHER END OF THIS DEVICES
ASSEMBLY OF THE SLIT LAMP MOUNT
- A T SPANNER USED BY TWO WHEELER MECHANICS SIZE 10 /11 AND A z14+15 NUMBER ORDINARY SPANNER IS BOUGHT FROM THE HARDWARE STORE
- THE T SPANNER IS ENGAGED AT 90 DEGREES WITH THE ORDINARY SPANNER BY A NORMAL INSULATING ELECTRICAL TAPE
- THE SLIT LAMP MOUNT IS READY TO USE AFTER ENGAGING THE OTHER END OF ORDINARY SPANNER TO MAIN BODY OF CAR MOBILE HOLDER WITH INSULATING ELECTRIC TAPE AT 90 DEGREES
INSTRUCTIONS FOR USE OF THIS DO IT YOURSELF FUNDUS CAMERA
- FIRST DOWNLOAD THE MOBILE APP “ULLMAN INDIRECT “ FROM THE APP STORE
- THIS APP IS VERY USEFULL IN CONTROLLING ILLUMINATION AND EXPOSURE DURING IMAGE …CAPTURE
- IT ALSO ENABLES TO KEEP THE LIGHT “CONTINOUSLY ON” DURING CAPTURE OF RETINAL IMAGES
- AND IT ALSO HAS FEATURE FOR ROTATING THE CAPTURED IMAGES LATERALY AND VERTICALY TO GIVE THE RIGHT ORIENTATION OF CAPTURED RETINAL IMAGES
2.IT IS POSSIBLE TO TO INDIRECT OPHTHALMOSCOPY WITH THIS DEVICE BY HOLDING THIS DEVICE IN HAND WITH THE 20 D LENS DIRECTED TOWARDS THE EYE AND THE A TWO DIMENSIONAL IMAGE OF RETINA IS VIEWED ON THE SCREEN OF MOBILE PHONE
3 .FOR PHOTOGRAPHY OF CENTRAL RETINA ,THE DEVICE IS FIRST MOUNTED ON THE SLIT LAMP AND THE PATIENT IS ASKED TO REST HIS CHIN AND FOREHEAD ON THE SLIT LAMP
THEN AS WE PERFORM 90 D EXAMINATION , THE 20 D/28 D LENS IS CENTERED ON THE PUPIL CLOSE TO THE EXAMINING EYE AND GRADUALLY BROUGHT AWAY FROM THE PATIENTS EYE TILL A PERFECTLY FOCUSED IMAGE IS SEEN ON THE SCREEN OF MOBILE PHONE IN THE “ULLMAN INDIRECT PHOTOGRAPHY APP”
GLAUCOMATOUS OPTIC ATROPHY
ARMD GEOGROPHIC ATROPHY
MALIGNANT HYPERTENSION RESOLVING EXUDATES
OPTIC DISC HYPOPLASIA ; DOUBLE RING SIGN
SERPINGENOUS CHOROIDITIS
MYOPIC FUNDUS
CRVO
BRAO
NOW THE PHOTOS ARE SHOT IN PHOTOBURST MODE OF THE APP AND BEST PHOTOS CAPTURED CAN BE SELECTED AND SAVED IN GALLERY OF MOBILE PHONE
THE IMAGES CAN BE EDITED IN ADOBE PHOTOSHOP APP FOR PREPARING TEXTBOOK LIKE CIRCULAR IMAGE,MAKING A COLLAGE OF PICTURES AND ADDING TEXT
IMAGES OF PERIPHERAL RETINA CAN BE CAPTURED BY EXAMINING THE PATIENT IN RECLINING POSITION IN CHAIR UNIT AND SHOOTING THE IMAGES IN VIDEO/PHOTOBURST MODE OF ULLMAN INDIRECT APP
DISCUSSION
USING THIS DO IT YOURSELF SMARTPHONE BASED FUNDUS CAMERA DEVICE IT WAS POSSIBLE TO
1.PERFORM INDIRECT OPHTHALMOSCOPY WITH A TWO DIMENSIONAL IMAGE VIEWED ON THE SCREEN OF SMARTPHONE
2.PHOTOGRAPHS OF THE CENTRAL AND PERIPHERAL RETINA WERE CAPTURED IN PHOTOBURST MODE OF ULLMAN INDIRECT APP BY APPLYING THE BASIC PRINCIPLES OF PHOTOGRAPHY I.E
1.ADEQUETE ILLUMINATION AND EXPOSURE WAS ACHIEVED WITH THE ULLMAN INDIRECT APP FOR RETINAL PHOTOGRAPHY
2.STABILITY DURING IMAGE CAPTURE WAS ACHIVED BY ASKING THE PATIENT TO REST HIS FOREHEAD AND CHIN ON SLIT LAMP AND FINE FOCUSING WITH THE JOYSTICK OF THE SLIT LAMP AVOIDING MOVEMENT BLUR AND SHAKY IMAGES
3.TRANSFER OF PHOTOS TO OTHER DOCTORS VIA INTERNET.
Leave a Comment