Eyelash extensions are synthetic fibers, typically made of materials like PBT or acrylic, individually attached to natural lashes using a semi-permanent adhesive. While extensions offer a cosmetic benefit, their presence often conflicts with sterile and safety protocols required for medical procedures. The near-universal recommendation from medical facilities is to have extensions professionally removed before any surgery.
Why Extensions Pose Medical Risks
The primary objections to wearing extensions during surgery involve two patient safety issues: monitoring interference and fire risk. Extensions can interfere with a pulse oximeter, a device used to measure blood oxygen saturation. The dark, dense material or adhesive may introduce artifact into the light sensor readings if the probe is placed on the earlobe or other facial site. This interference can lead to inaccurate readings, making it difficult for the anesthesia team to monitor the patient’s respiratory status.
A more serious risk is the potential for a surgical fire, especially when an electrosurgical unit or cautery device is used near the face. The synthetic polymers in most extensions are highly flammable. Coupled with supplemental oxygen, which is common in the operating room, these extensions can act as fuel. Removing the synthetic material eliminates this ignition risk near the patient’s face.
How Procedure Type Influences Guidelines
The necessity of removing extensions is highest for procedures requiring general anesthesia or those performed on the head, face, or neck. Under general anesthesia, the patient’s blink reflex is absent, requiring the surgical team to tape the eyes shut to prevent corneal abrasions. Extensions can be dislodged or torn off during this taping process, potentially causing corneal injury or being ripped out unevenly upon removal of the protective tape.
For minor procedures performed under local anesthesia or those far from the head, such as foot surgery, the risk profile is lower. However, many hospitals maintain a blanket policy requiring the removal of all cosmetic enhancements to standardize safety protocols. The final determination rests with the surgical team, who prioritize their ability to monitor the patient and maintain a sterile, fire-safe field.
Preparing Your Lashes Before Surgery
To avoid complications and delays, patients should proactively consult with their surgeon or the pre-operative nurse about the specific policy. If removal is required, it must be done professionally by a certified technician at least 48 hours to one week before the surgery date. Professional removal uses a solvent that safely dissolves the adhesive, preventing damage to the natural lash line.
Patients should never attempt to remove extensions at home with unapproved chemicals, as this could irritate the eyes immediately before surgery. On the day of the procedure, all makeup, including mascara and strip lashes, is prohibited. A lash lift, a chemical treatment that curls natural lashes without adding synthetic material, is generally the only acceptable enhancement, provided it is fully healed before surgery.