Missing medication of any kind is a problem but if you happen to have missed the prescription for your glasses, you will not lose everything. To get a certified, doctor-approved prescription, you need to visit the doctor again but you can get the prescription from a pair of glasses if their lens is intact.
If you already have a pair of prescription glasses, you can take them to an optician who will examine them and give you the exact number of medicines. If that’s not an option, you can experiment at home.
Find a medicine number from glasses
To find a trace from a pair of glasses at home, you must;
- Phone, Android or iPhone.
- Credit card, or similar for calibration (the process is free).
- Something to turn on your phone to keep it stable because you will be holding your glasses during the test.
- Well lit room.
Install Lingo Rx
- On your phone, install the Lingo Rx app. It is available for Android and for iOS.
- Once the app is installed, install it visit this page.
- Scan the QR code on the page with the Lingo Rx app.
- Once the scan is complete, calibrate your screen size using the credit card.
- Put the credit card inside the grid of dots, and scan with the app.
- Once calibration is complete, you can start the test.
Check medication number
Before you start the test, you need to know that the six dots on the screen that you see must always be visible to the app on your phone. They should not fall outside the ‘visible’ area for the app and should not be obstructed by hand or glasses.
- Location for phone in front of your screen. The app will guide you if the phone is too close or too far away.
- Take off your glasses, and keep them between the phone and the screen. Make sure the ‘eyes’ on the screen are visible through the glasses.
- Follow the instructions in the app and move your glasses near or away from the screen. Tilt e when promised to him.
- Once the scan is complete, the the app will analyze it.
- Take a selfie by credit card when pledged.
- The results are displayed on your computer.
We tested this app and it was 100% error free. The numbers shown were consistent with the figures from an eye examination performed by an optometrist.
This method and this app has limitations that it says clearly on its home screen; cannot scan glasses if the prescription is outside the -6.00 to +3.00 range, and for cylinder values above -2.5. If any of these values are above the range, the scan will fail.
We tested this too and found it to be true but that is hardly surprising. Numbers above -6.00 are considered severe myopia. The +3.00 range is conservative although +5.00 is what is considered extreme in hyperopia. They cannot be scanned for sure with just a phone.
Do you need to confirm your hearing? There is an app for that.
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