When you are pregnant, you have an increased amount of fluids in your body.
These fluids, which are responsible for the swelling in your hands, feet, and ankles, can also cause vision changes.
Because your eyeball is filled with fluid, the shape of your eyeball can change, causing changes in your vision.
When you are pregnant, your estrogen levels also change, which can lead to dry, irritated eyes.
If you wear glasses, you may find they no longer work as well as they did before you conceived.
If you wear contacts, you may find they become uncomfortable. Because these vision changes usually resolve shortly after your baby is born, it may not make sense to go to the expense of getting a new vision correction prescription; that will depend on how much your eyes change and the type of work you do.
If your eyes are dry, moisturizing eye drops can usually relieve any discomfort. Also remember to stay hydrated. When you are outdoors, always wear sunglasses with UVA and UVB protection.
You should mention any changes in vision to your obstetrician. Most vision changes are a normal side-effect of pregnancy, but they can also signal serious pregnancy complications.
If you notice blurred or dimmed vision, or if you see spots or floaters, call your doctor right away. If you experience any pain in your eyes, especially if it is accompanied by a headache, call your doctor right away.