<unk> , is a form of<unk>  that occurs when someone is looking into an optical<unk>  such as a microscope. The person focusses his or her eyes closer than needed for the image produced by the<unk> .
Instrument myopia
Refractive error
Tunnel vision
Alcohol myopia
Childhood cataract
Pattern glare
Congenital cataract
Ametropic amblyopia