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Patent MacHealth
Patent
MacDx
Press Release
1/15/2026
100 years after Hecth's first test, Hofeldt patents: MacHealth™ & MacDX®.

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MacDx® App Series, Red Light
Download MacHealth from Apple (QR on iPhone, pay 99 cents fee for 30 tests.) Perform 3 tests on each eye and send me the results using NUMBERS for ID (do not use a real name due to patient identification.) When I receive your results, I will notify you, if they qualify, I will send $1.00 for the app Price. Try repeating tests to get use to the easy test. I will reimburse the first 1000 MacHealth test. Send to ajh@amaoptics.com.
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Kane, JS, MPH, Hofeldt, AJ, MD, Coard, MC, Weiss, M, PhD, MD. May 3, 2026

Studies: AMBLYOPIA and DiagnosticGame
1. Hofeldt, TS, Hofeldt, AJ: BJO 1999 (see Link)
Topic: "Color Rivalry with Brightness Measurement"
· 24 Amblyopes 0.3 to 1.8 log defects
· Amblyopic defect related to vision loss, p<0.0001
2. Gise, R Kane SA.: ARVO Paper #3819, 2016
Topic: "iPad Rivalrous Program in Amblyopia"
· 16 Amblyopes, all detected
· 16 Normal subjects, no false positive
· Amblyopic defect related to vision loss, p<0.0001 (r=0.85, p<0.0001)
3. Kane SA.: 2016, Unpublished to date.
Topic: "iPad Screening Program for Amblyopia"
· 211 students studied, Ages 3 to 14 years of age
· Summary
Of the 210 children tested, there are 208 true negative, 2 true positives, zero false negative, and zero false positive. The true positives are (1) an 8 year old undergoing treatment for amblyopia with current acuities of 20/20 OD and 20/25 OS and (2) one amblyope was detected, a 10 year old having 20/20 OD and 20/40 OS. Of the true negatives, one child is a successfully treated amblyope having 20/20 vision in each eye; repeated inter-ocular brightness test results are 0.3 OD defect, 0.3 OS defect, and zero defect. The sensitivity is 100% for detecting amblyopia in the 210 children. A 4-year-old child who did not understand brightness could not tested.
4. Kane, SA iPad Screening of Elementary School Students with the DiagnosticGame app, 2017, active IRB study
RESEARCH DATA
NeuroColor
COLOR VISION (289 TESTED)
Comparison to HRR AO PLATES
· 4 Abnormal both methods (Red-Green Deficiency)
· 285 Normal both methods
RESEARCH DATA
Stereopsis
STEREOPSIS (27 TESTED)
Comparison to Titmus
· The P-Value is 0.000179
· The result is significant at p < 0.05.








