坐飞机可以带 眼药水与人工泪液 吗？（美国TSA/加拿大CATSA标准）

可以随身：单瓶容器容量不超过100毫升（3.4盎司），且须装入容量不超过1升的透明自封塑料袋中。

允许托运：超过100毫升的大容量液体及日化品可以放入托运行李中托运（须符合气雾剂总量规定）。

Standard carry-on baggage size allowances apply; TSA publishes no individual numerical cap for personal use.

Medically necessary liquid medications, infant formula, and breast milk exceeding 3.4 ounces (100 ml) must be declared to security screeners before screening begins. Standard toiletries under 3.4 ounces inside your clear quart-sized bag require no separate verbal declaration and proceed through normal X-ray screening.

If liquid containers exceeding 3.4 ounces (100 ml) are detected in carry-on baggage without an infant or medical exemption, screeners will not allow them past security. Travelers must surrender the item for destruction, return outside security to place it in checked luggage, or mail it home.