Puffy eyes are often caused by something simple, including:
Lack of sleep
Allergies
Crying
High salt intake
Fluid retention
But persistent swelling around the eyes can occasionally be associated with thyroid disease, kidney problems, inflammation, or other medical conditions.
If swelling is severe, affects only one side, appears with breathing difficulty, or persists without an obvious explanation, it deserves medical evaluation.
6. Dry, Gritty, or Burning Eyes
