Microsoft Windows uses .lnk as the file extension for shortcuts to local files, and .URL for shortcuts to remote files, like web pages. Shortcuts are typically implemented as a small file containing a target URI or GUID to an object, or the name of a target program file that the shortcut represents. The shortcut might additionally specify parameters to be passed to the target program when it is run.
Photopsia is the presence of perceived flashes of light. It is most commonly associated with posterior vitreous detachment, migraine with aura, migraine aura without headache, retinal break or detachment, occipital lobe infarction, and sensory deprivation (ophthalmopathic hallucinations).
Achromatopsia is characterized as lacking in cone vision which is provided by cone photoreceptors in the retina. People with this disorder are completely color blind or nearly color blind and have poor visual acuity and their eyes do not easily adapt to high levels of illumination. Achromatopsia Definition. Achromatopsia is defined in two forms and these are Complete Achromatopsia and Incomplete Achromatopsia or Dyschromatopsia.