The app is missing the “Automatic” distance-to-blur measurement test. How do I measure my eyes?
The distance-to-blur test requires an iPhone with a TrueDepth front facing camera such as a iPhone X or newer model. I’ve included an additional “manual” way of entering the measurements if your phone doesn’t have TrueDepth. Select the “Self Reporting” eye test to enter the distances you’ve measured with a ruler.
My eyes are very myopic. I have to put the iPhone very close to my face in order to see text clearly. Will Sight Meter’s distance-to-blur test work for me?
The distance-to-blur test is normally used when not wearing any glasses or contacts. But the test stops working if you hold the iPhone closer than about 18 cm from your face. This is how far you would hold it to see text clear if you wear contacts with a power of -6.00 diopters or stronger. If you have to hold the phone closer than 18 cm when not wearing glasses or contacts, there is still a way for you to take the test.
If you normally wear contacts:
Wearing your contacts will probably put your distance-to-blur farther than you can reach with the iPhone. To fix that problem, try wearing reading glasses in addition to your contacts when taking the distance-to-blur test. That’ll move the distance where text begins to blur closer to your face. Make sure you create and select a “Vision Profile” in Sight Meter that matches the contacts and glasses you are using when taking the test.
If you normally wear glasses:
Wearing your full prescription glasses will probably put your distance-to-blur farther than you can reach with the iPhone. Try switching to your “computer glasses” or glasses with a reduced prescription before taking the test. That’ll move the distance where text begins to blur closer to your face. Make sure you create and select a “Vision Profile” in Sight Meter that matches the glasses used when taking the test.
If you have any questions regarding Sight Meter that weren’t answered here, please email me (David Smith) at dsmith@jetpad.com