![]() ![]() You are really testing an imaging system. ![]() (The Imatest Log Frequency chart, which can be created by Imatest Test Charts, is a more recent update which omits the scales because spatial frequencies are automatically detected by Imatest.) Actually 'lens' test chart is something of a misnomer since it's difficult to test a lens in isolation. Whatever the case, if your vision is poor on eye chart testing, you must consult an optometrist or ophthalmologist for a more detailed eye examination to know its cause and find a solution. Download a printable eye chart here! Snellen chart is the most frequently used eye test chart. It is now much easier to use and it produces more detailed information. The test chart has been completely redesigned. V2.0 (12 June 2004) This is a major release, hence the change to version2.x. The test chart itself is unchanged from version 2.0. Shot down a few myths about how the focus test works. ![]()
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