TED may cause dry or gritty eyes, swelling, redness, a more prominent eye appearance, eyelid changes, or double vision. Symptoms alone cannot confirm the cause.

Symptoms to discuss at an eye visit

Dryness, watering, irritation, or light sensitivity.
Swollen eyelids or a change in how much white shows around the iris.
Pressure or discomfort around the eyes.
Eyes that appear to bulge, or trouble closing the lids.
Double vision or difficulty moving the eyes comfortably.

Changes that should not wait

Seek urgent eye care for loss or dimming of vision, faded colors, severe pain, or painful exposure when the eye cannot close. Sudden loss of vision is an emergency. New double vision deserves prompt medical advice; sudden double vision with weakness, trouble speaking, or a severe headache is an emergency.

Make a useful symptom timeline

Write down when changes began, whether one or both eyes are affected, whether they are constant or intermittent, and what daily tasks are harder. Existing photographs may help your clinician understand a change in appearance. Do not delay care while collecting evidence.

Bring information about thyroid conditions, medicines, smoking exposure, and previous eye treatment.

What if the signs are mild?

Dryness and redness are common and can come from many conditions. Persistent or changing symptoms still warrant an eye examination. The absence of obvious bulging does not rule out TED.

Use the checklist to prepare questions without assigning yourself a diagnosis.

Sources & further reading

Sources checked October 22, 2026. This is an original educational summary. Links do not imply endorsement or affiliation.

Reviewed by Dr. Irina Belinsky, MD.

Clinical review completed October 22, 2026. Dr. Belinsky specializes in oculoplastic surgery. Read our editorial approach.

Your next step

Bring your questions and a symptom timeline to an eye professional.

Create a visit plan

Thyroid eye disease symptoms and early signs