Look at things with ghosting
Astigmatism, presbyopia, cataracts, and diseases of the nervous system can all cause "eyes have ghosting". Ghosting caused by neurological diseases can only be "ghosting when looking at something with both eyes", but not with monocular eyes Ghosting appears. It is a clinical symptom of diplopia. Double vision, as its name implies, is the phenomenon of treating one object as two separate objects. Clinically, it can be divided into two types: monocular diplopia and binocular diplopia, and the diplopia of the elderly is more common with diplopia.
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