See attachments in my Github page please.

OCT, which is optical coherence tomography, can be used for detecting retina in micron resolution.Now we can obtain OCT signal by Pythonista in iOS devices.

Steps

1. Get access token from Dropbox by DropboxFileGet.py, and files in target folders could be downloaded to root folder in Pythonista
2. The interference signal example is NKT_15us_3thou.csv. Run FFT_iOS.pywith file NKT_15us_3thou.csv
3. A-scan Signal.PNG can be shown in Pythonista console.