Pregnancy can trigger or worsen preexisting diabetic eye disease. Vision usually returns to normal toward the end of your pregnancy or within a few months after delivery. It's cause is unknown but multiple factors during pregnancy can contribute, and most often develops in late pregnancy. Layers of the retina then detach and distort vision, creating blind spots. This is uncommon, seen in just 4 in every 17,000 pregnant women. Some women with an otherwise healthy pregnancy develop a rare eye disease called central serous chorioretinopathy, where fluid builds up under the retina. Be sure to tell all of your medical providers about your migraines with auras as they may affect the type of contraception you are able to take in the future. Your doctor can give you medication to help with these migraines as needed, and even suggest some medications or supplements to prevent them. Please call your obstetrician if you start to experience these symptoms and they will need to rule out other more concerning causes of blurry vision. They're especially common in the first and early second trimester and tend to improve – even for women who've experienced them in the past – in the late second and third trimesters, due to higher estrogen levels. While very unpleasant, migraines Opens a new window are rarely cause for concern. A painful headache is preceded by an aura, although it's common to have visual symptoms without the headache. You may see flashing lights, zigzag lines, or blind spots caused by migraine headache with aura for the first time during pregnancy. You may experience other vision changes during pregnancy, including: Will I experience any other vision changes during pregnancy? Expect symptoms to reverse themselves within several months of delivery or after you finish breastfeeding. If you do experience any vision changes during pregnancy, they will almost always be minor and temporary. The most common vision change during pregnancy – blurry vision – is usually linked to changes in the cornea and occurs mainly in the second and third trimesters. When does blurry vision in pregnancy begin? Combined with subtle changes in the shape and thickness of the cornea, you may find it's uncomfortable to wear contact lenses, especially hard lenses. Hormonal changes can also make your eyes drier and more irritated during pregnancy (and for as long as you're breastfeeding), which can contribute to inaccurate vision. It's also the reason laser eye surgery isn't recommended during pregnancy, and why it's not a good time to be fitted for new contact lenses or invest in a new pair of glasses. It's a small change, but it could affect whether your glasses or contacts still correct your vision perfectly – or cause your vision to look blurry even if you didn't need glasses before pregnancy.

Water retention, in particular, may slightly increase the thickness and curvature of your cornea.

Migraine with aura during pregnancy