In view of subsequent events it would be difficult to find a more interesting subject of inquiry than the internal religious and sociological conditions in Samaria at this age.
Its incidence following spine surgeries exceeds that after cardiothoracic surgeries. Various causes attributed to postoperative blindness include ischemic optic neuropathy, central or branch retinal artery occlusion, cortical blindness, and rarely external ocular injury.
When fatty plaque deposits build up in blood vessels (due to, for example, diabetes, high blood pressure, smoking, or high cholesterol) and make them narrower, small pieces of plaque can break off from a blood vessel wall and block blood flow to the eye, causing temporary blindness. Other causes of temporary blindness include: Chemicals: Many chemicals can cause temporary blindness when sprayed in the eyes (i.e. pepper spray, mace, or even cleaning products). Conversion disorder: If you are experiencing severe psychological or emotional stress, you may experience a conversion disorder.