Mask Squeeze
Definition
Mask squeeze is a barotrauma caused by failing to equalize the air pressure inside the mask during descent.
More on Mask Squeeze
As you descend, water pressure increases and compresses the air inside your mask. Without equalizing—by exhaling gently through your nose—this pressure creates a vacuum that can cause facial bruising or broken capillaries around the eyes. Symptoms include redness, pain, and ‘raccoon eyes’ after a dive. Prevent mask squeeze by equalizing early and often, just like you would for your ears. Ensuring a proper mask fit and seal is also important.
Frequently Asked Questions
Redness, bruising around the eyes, mild pain or swelling, and tiny broken blood vessels (subconjunctival hemorrhage).
Exhale gently through your nose as you descend to equalize pressure inside the mask. Don’t let your mask seal too tightly.
It’s usually minor and cosmetic but can be uncomfortable. Severe cases may require medical attention, especially if vision is affected.
Less likely, as they are naturally equalized with inhaled/exhaled air. But poor fitting can still cause discomfort.
Avoid diving for a few days, apply cold compresses, and consult a doctor if symptoms worsen or include vision issues.