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Visual field screening by opticians with Damato Multifixation Campimetry Online ( DMCO )
Author(s) -
Olsen A.S.,
Damato B.,
Cour M.,
Kolko M.
Publication year - 2015
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2015.0663
Subject(s) - false positive paradox , medicine , test (biology) , optometry , visual field , algorithm , glaucoma , sensitivity (control systems) , ophthalmology , artificial intelligence , computer science , engineering , paleontology , electronic engineering , biology
Purpose To study DMCO , a free of charge Internet‐based visual field test, used as a screening device in optician shops in Denmark. Methods Standard equipment was a computer, a wireless mouse and a 22” computer monitor. Optician shops in the region of Copenhagen were invited to participate. We used DMCO STANDARD 1 + 2, the best performing algorithm from our previous work, to screen. The algorithm demanded one or two successive DMCO tests with a cut‐off at 4 or 5 missed points on a DMCO test. This algorithm has performed with sensitivity of 64.2% and specificity of 98.1, respectively ( AUC = 0.9). Results During 2014–2015 the DMCO STANDARD 1 + 2 algorithm has been evaluated in 12 optician shops. DMCO have been tested by 587 individuals of whom 31 demanded a full ophthalmology examination. The examinations revealed 7 glaucoma cases, 17 cases with different eye‐brain‐diseases, and 7 false positives. To date 46 individuals with a normal DMCO test have been examined: 44 healthy and 2 false negative cases. Preliminary results indicate DMCO to perform with sensitivity of 50% and specificity of 98.7%, respectively. Conclusions This study demonstrated that DMCO was able to find various visual field defects when used by opticians. The chosen algorithm maintained high specificity but a decline in sensitivity was noticed. There is scope for future improvements of DMCO and more studies are needed to confirm the findings.