"I can see clearly now the (mig)rain(e) is gone," sang Johnny Nash back in the day, and many migraine patients will no doubt agree with him. That's especially true for sufferers who experience visual disturbances during an attack. While a classic migraine accompanied by lights and patterns is usually a regular migraine with aura, many patients also develop other visual symptoms before, during or after an attack. These headaches are known as retinal, ophthalmic or ocular migraines, depending on...