What Is Periorbital Numbness Around the Eye?

How Does the Infraorbital Nerve Cause Numbness Following Trauma?

The infraorbital nerve runs directly beneath the thin bone of the orbital floor. If a person is hit in the eye with a ball or a fist, the pressure can cause the floor to blow out into the sinus cavity. The broken bone fragments often pinch or trap the infraorbital nerve, causing immediate numbness in the lower eyelid, the side of the nose, and the upper lip. Clinical data suggests that 70 percent of patients with an orbital blowout fracture will report this specific numbness, making it a mandatory symptom check for any facial injury.

What are the Primary Success Data Trends for Nerve Recovery?

Clinical data indicates that most periorbital numbness caused by bruising will resolve on its own within 6 to 12 weeks. However, if the nerve is physically cut or crushed, the numbness can be permanent. Statistics show that patients who undergo orbital decompression surgery within 14 days of an injury have a 40 percent higher chance of regaining full sensation. This data has led many surgeons to use numbness as one of the primary reasons to recommend surgery, even if the eye looks normal on the outside.

Why Is Shingles a Leading Non-Traumatic Cause of Numbness?

Shingles occurs when the chickenpox virus reactivates in the facial nerves. Before the painful rash even appears, the patient often reports a strange tingling or periorbital numbness in the forehead and upper eyelid. Data shows that nearly 20 percent of Shingles cases involve the ophthalmic nerve. This is a medical emergency because if the numbness is accompanied by a blister on the tip of the nose, there is a 75 percent risk that the virus is actively destroying the inside of the eye.

What Is the Role of Cosmetic Fillers in Accidental Periorbital Numbness?

In the cosmetic industry, periorbital numbness is a known but rare side effect of facial injections. If a filler is accidentally injected too close to a nerve or into a blood vessel, it can cause localized numbness. Clinical surveys indicate that filler-induced numbness is increasing by 10 percent annually. Identifying this numbness immediately allows for the use of a dissolver to rescue the nerve, preventing permanent facial scarring or even accidental blindness.

How Do Clinicians Use Nerve Conduction Studies for Chronic Numbness?

If periorbital numbness does not resolve after several months, clinicians may use Nerve Conduction Studies to assess the health of the facial nerves. This test measures how fast electrical signals travel along the nerve, providing a data point to determine if the nerve is permanently damaged or just sluggish. For patients with chronic numbness following surgery, this data is necessary to decide if a nerve graft is appropriate. Quantitative sensory testing ensures that the patient's recovery plan is based on objective biological measurements rather than just their subjective report.