Vision Changes
Mild vision changes are common during pregnancy due to fluid retention and hormonal effects on the eyes. However, certain vision changes — especially in the third trimester — can signal serious conditions like preeclampsia.
Common Causes
- Fluid retention causes corneal thickening and curvature changes
- Reduced tear production causes dry eye syndrome
- Increased blood volume and pressure changes affect ocular circulation
- Gestational diabetes can affect the retina (diabetic retinopathy)
- Preeclampsia can cause severe visual disturbances due to brain swelling
Remedies That May Help
Lubricating Eye Drops (Preservative-Free)
Artificial tears help dry eyes — choose preservative-free formulations used more than 4 times daily.
Avoid Rubbing Eyes
Rubbing irritated eyes worsens dryness and may cause corneal irritation.
Delay New Contact Lens Prescriptions
Corneal changes during pregnancy mean prescriptions often change temporarily. Wait until 6 weeks postpartum to update glasses or contacts.
Rest Your Eyes
Reduce screen time and take breaks to reduce digital eye strain.
When to Call Your Doctor
- Sudden blurry vision, especially in the second or third trimester
- Seeing spots, floaters, or flashing lights
- Double vision
- Temporary loss of vision in one or both eyes
- Visual disturbances accompanying headache or swelling (possible preeclampsia)
- Any sudden change in vision is a medical emergency until preeclampsia is ruled out
Frequently Asked Questions
Is blurry vision normal during pregnancy?
Mild blurriness from corneal changes is common and not dangerous. However, sudden or severe blurry vision — especially in late pregnancy — is a warning sign of preeclampsia and requires immediate evaluation.
Can pregnancy permanently change my vision?
Most vision changes are temporary and resolve within weeks to months after delivery. Avoid updating your prescription during pregnancy for this reason.
What do flashing lights or spots in vision mean during pregnancy?
Seeing flashes, spots, or floaters — especially with headache or swelling — is a warning sign of preeclampsia or severe hypertension. Call your provider or go to the ER immediately.
Can I wear contact lenses during pregnancy?
Many women find contacts less comfortable during pregnancy due to dry eyes and corneal changes. Daily disposables are often more comfortable. Avoid wearing them during episodes of blurriness or discomfort.
Does gestational diabetes affect vision?
Women with gestational diabetes or pre-existing diabetes should have an ophthalmic assessment during pregnancy, as pregnancy can accelerate diabetic retinopathy.