<prompt> A 75-year-old coal minor complains of progressive loss of vision. Visual field examination shows visual loss in the upper right quadrant in both visual fields. The lesion would most likely be in the:Left cuneusLeft temporal lobeRight angular gyrusRight lingual gyrus  <response>: The patient is suffering from field deficit called upper right homonymous quadrantanopia, which is also known as Meyers loop quadrantanopia.The lesion lies at the contralateral inferior temporal lobe. Area of lesion Type of Defect Discoptic nerve lesions Same sided monocular blindness Chiasmal lesions Bitemporal Hemianopia Optic tract lesions mc Incongruous Homonymous hemianopia Lt. Geniculate body lesions Meyers loop Temporal lobe Pie in the sky Baums loop Parietal lobe Pie on the Floor Occipital lobe lesion Congruous Homonymous hemianopia with macular sparing NOTE- Baumans loop - by superior fibres of optic radiation Meyers loop - by inferior fibres of optic radiation 