Presentation is loading. Please wait.

Presentation is loading. Please wait.

Innovative Color Vision Testing (simultaneous congenital & acquired) Stuart P Richer, OD, PhD, FAAO Director, Ocular Preventive Medicine James A Lovell.

Similar presentations


Presentation on theme: "Innovative Color Vision Testing (simultaneous congenital & acquired) Stuart P Richer, OD, PhD, FAAO Director, Ocular Preventive Medicine James A Lovell."— Presentation transcript:

1 Innovative Color Vision Testing (simultaneous congenital & acquired) Stuart P Richer, OD, PhD, FAAO Director, Ocular Preventive Medicine James A Lovell Federal Health Care Facility Associate Professor, Family and Preventive Medicine, Rosalind Franklin University of Medicine & Science / Chicago Medical School North Chicago, Illinois 60064, USA Assistant Clinical Professor, UIC Dept of Ophthalmology and Visual Science - Chicago AAO 11 Nov 2014 AFOS

2 Rabin Cone Contrast Test Rabin Cone Contrast Test by Innova Systems 15 Years of US Air Force research Published, Peer Reviewed Validated against Anomaloscope Innova Approved as Sole Color Vision Test for US Air Force Over 400 in Use Worldwide

3 Colored letters stimulate single cone type / pathway Decreasing contrast steps detects cone function threshold Numeric scores provide Hereditary vs. Acquired discrimination Change over time metric Rabin Cone Contrast Test by Innova Systems

4 A Color Vision Test Sensitive Enough to Detect Severity of Cone Deficiency Used to Detect and Monitor Acquired Color Deficiency – AMD – Glaucoma – Diabetic Retinopathy – MS – Parkinson’s Disease – TBI – Retinal Toxicity due to High Risks meds such as Plaquenil Color Normal vs. Deficient

5 a

6 BLUE CONE LOSS 1.Acquired blue cone loss occurs early in eye disease, sometimes before visual field defect(s) 2.Very few blue cones: small amount of damage has large effect 3.Secondary to disease, trauma or toxicity 4.Often asymmetric

7 Rabin Cone Contrast in Eye Disease Red Score Green Score Blue Score

8 Central Serous Normal Eye Rabin Log Score Acquired Color Deficiency in Central Serous Retinopathy normal range Red cone Green cone Blue Red cone Green cone Blue (Tritan) Blue RE & LE 20/20

9 Acquired Color Deficiency in Optic Neuritis (Blue – Tritan) Blue Cone Rabin Score RE (20/15 VA) LE (20/15 VA) 2 SDs 5 line decrease Normal mean Resolved Optic Neuritis Right Eye Tritan Defect MRI & CSF— Probable MS

10 Current Research Military - Cases of Optic Neuropathy – Identified with RCCT that was missed by all other equipment. – Cone recovery shown with RCCT. Military – Central Serous Retinopathy Military – Traumatic Brain Injury – Identified with RCCT Duke University – Dry AMD – Clinical Trial results: the AREDS 3 intermediate AMD group exhibited visual dysfunction on the Rabin Cone Contrast Test, in the presence of normal visual acuity – New clinical trial begins fall 2014 Other: Diabetes, MS, Plaquenil, Alzheimers, Glaucoma, Macular Pigment Density Loss

11 Patient Benefit Simultaneous Hereditary + Acquired Color Vision Evaluation 1.Identification of patients at- risk for developing disease. 2.Earlier recognition and intervention of disease. 3.Rapid detection of disease progression. 4.Evaluation of treatment efficacy. Improved Quality of Care

12 Macular Health Center VEP………………………………….………….…$ ERG……………………………………………….$ Macular Pigment ……………………………$25.00 OCT ………………………………………………..$50.73 Multi-Spectral Imaging…………………...$91.41 Rabin cone contrast sensitivity………..$67.28 Gene Testing – Macula Risk,99213…. $81.30 Total per Patient…………..………………...$ x 50 patients/year……………..……....$32,858.00

13 Rabin Cone Contrast Test Eye Disease Detection and Monitoring by Innova Systems AFOS Room F AAO Booth #


Download ppt "Innovative Color Vision Testing (simultaneous congenital & acquired) Stuart P Richer, OD, PhD, FAAO Director, Ocular Preventive Medicine James A Lovell."

Similar presentations


Ads by Google