During pregnancy, the vision may change. That's why it is not good to get new contact lenses during pregnancy. However, you don't have to change your prescription because the prescription only change a little. During pregnancy, there are some changes
in hormones, metabolism, fluid retention, and blood circulation which can affect the eyesight. But you don't have to worry about it because they are only temporary and will reverse several months later.
Yes, pregnant will affect your vision. Women who pregnant will change in hormones, metabolism, fluid retention, and blood circulation, thus to affect your eyes, as well as your eyesight. But you don't worry, your vision will be recovery after you have baby. So, even if your vision changes, you needn't buy new prescription eyeglasses. If you feel inconvenience with poor vision, you shall buy eyeglasses with the guide of an doctor.
You may find that your eyes are drier and more irritated during pregnancy (as well as during breastfeeding). This, along with subtle changes in the shape and thickness of the cornea, may contribute to some difficulty wearing contact lenses that were once comfortable.
Pregnancy can also bring about changes in existing eye conditions-for better or for worse. If you have diabetes, see an ophthalmologist before you get pregnant and again in early pregnancy to get screened for damage to the blood vessels in your retina. This condition, called diabetic retinopathy, often worsens during pregnancy, so you'll need more frequent eye exams while you're pregnant and in the postpartum period.Glaucoma, on the other hand, sometimes improves during pregnancy, so your medication may need to be adjusted. If you have glaucoma and are planning a pregnancy, your doctor may be able to lessen your baby's exposure to the medication by starting you off with as low a dose as possible.