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).
A misalignment of the two eyes that only appears when binocular viewing is broken and the two eyes are no longer looking at the same object. A tropia is a manifest deviation of the eyes. A phoria is a latent deviation (un-manifested) between the eyes. Phorias can be unmasked by covering either one of the eyes. Tropias are diagnosed by the cover-uncover test (Unilateral cover test). Phorias are diagnosed by the cover-cover test (Alternating cover test). A tropia is always present. Phorias are present some of the time.