Ocular migraines

Some people experience a visual 'aura' which precedes the headache. An aura is often in the form of visual disturbances such as flashing lights, zigzag lines, tunnel vision or a temporary loss of vision. These can move around the vision, rotating and oscillating and can include simple flashes, specks, or shimmering lights. These visual symptoms are reversible and generally lasts for about 10‑20 minutes before vision starts to gradually return. In some cases, it can last longer, but generally does not last for more than an hour. If you experience visual disturbances that last longer than an hour, it is best to seek care from your optometrist. Flashing lights can sometimes indicate a retinal tear, which requires urgent attention to help prevent loss in vision.

There are many types of migraines, some involve experiencing a visual aura and others do not. For example, ocular migraines, formally known as retinal migraines, are recurrent episodes of symptoms that only involve one eye. These often occur frequently and are accompanied by visual disturbances such as blind spots or temporary loss of vision in one eye. As migraines occur more commonly in women, there have been some links made between the condition and female hormones. Some women may experience what is known as menstrual migraines, which only occur around two days before their period starts or finishes, unique to the time of their cycle. Some women find their symptoms improve after menopause or a hysterectomy.  

However, if you notice any change in the frequency or severity of episodes or symptoms of any type of migraine, it is recommended to seek care from your optometrist.

After the main symptoms of a migraine resolve, you may experience symptoms such as fatigue, vomiting, poor concentration and comprehension, lowered mood levels, or dizziness.  

It is recommended to seek care from your family practitioner if you are experiencing such symptoms.