Aug 15, 2025

Lash Extensions & Contacts: Safety, Risks & Best Practices

If you wear contact lenses and want to get eyelash extensions, you might wonder, "What should I do during the procedure?" or "Is it okay to leave them in?"

This article explains the proper handling of contact lenses during eyelash extension procedures and discusses potential eye problems caused by contact lenses. Please read this for a safe and comfortable experience.

Q: Should I remove my contact lenses during the lash extension procedure?

A: Yes, for safety reasons, we strongly recommend removing them before the procedure begins.

The reasons differ slightly depending on the type of contact lens:

For Hard Contact Lenses (HCL):
- HCLs are smaller than the cornea and move more easily, so they might shift when your eyes are closed.
- Because the lens material is rigid, there's a risk of scratching the eyeball if the technician accidentally presses firmly on the eyelid.
For Soft Contact Lenses (SCL):
- The SCL material can absorb volatile components from the eyelash extension glue (adhesive).
- A lens that has absorbed these components may become unusable and could potentially harm your eyes if worn afterwards.
For Both HCL & SCL:
- If a client comes in with poorly cared for or unsanitary lenses, eye problems unrelated to the procedure could occur, potentially leading to misunderstandings about the cause.

For these reasons, there's no benefit to wearing contact lenses during the procedure. Let's ask clients to bring their contact lens case and glasses.

Be Aware! Eye Problems Caused by Contact Lenses

Eye problems related to improper contact lens use are increasing. These issues often involve conditions like keratitis (corneal inflammation), and their symptoms can sometimes be mistaken for problems caused by eyelash extensions.

Main Causes of Contact Lens-Related Eye Problems:

Oxygen Deprivation: The cornea gets oxygen primarily from tears. Covering it with a contact lens can restrict oxygen supply. An oxygen-deprived cornea is weaker, more prone to injury, and at higher risk of infection. SCLs generally have lower oxygen permeability than HCLs, so extended wear requires caution.
Lens Deposits/Dirt: Improper lens care leads to buildup on the lenses, which can cause allergic reactions or become breeding grounds for infection.
Other Factors: Allergies, dry eye, and improper lens use (not prescribed by a doctor, skipping regular check-ups, violating usage instructions like wear time) also increase the risk of problems.

Common Eye Diseases Related to Contact Lenses:

Corneal Edema: Swelling of the cornea due to oxygen deprivation hindering cell metabolism.
Corneal Neovascularization: Growth of new blood vessels into the normally clear cornea, caused by chronic oxygen deprivation. This can reduce transparency and cause redness or a foreign body sensation.
Corneal Epithelial Disorders: Damage or scratches to the outermost layer of the cornea (epithelium) due to oxygen shortage, lens deposits, etc.
Corneal Infection (Infectious Keratitis): Bacteria or other microbes entering through scratches on the corneal epithelium, causing inflammation. Carries a risk of serious complications.
Corneal Ulcer: A worsening of corneal infection where the damage reaches deeper into the cornea (stroma). This is a dangerous condition that can lead to vision impairment or even blindness if treatment is delayed.
Giant Papillary Conjunctivitis (GPC): Inflammation of the conjunctiva (lining of the inner eyelid) caused by an allergic reaction to lens deposits. Characterized by bumps ("papillae") on the inner eyelid, itching, redness, discharge, and lens movement.

Proper Contact Lens Use

Contact lenses are classified as "highly controlled medical devices." To prevent trouble, follow these guidelines:

Purchase: Always get an eye exam and prescription from an eye doctor.
Lens Care:
- Always wash hands thoroughly with soap before handling lenses.
- Don't just soak lenses; always perform "rub and rinse" cleaning.
- Regularly clean and air-dry the lens case, and replace it periodically.
Regular Check-ups: Attend follow-up appointments as directed by your eye doctor, even if you have no symptoms.
Color Contact Lenses: Even cosmetic color contacts are medical devices. They require the same careful handling as regular contacts, and some may have low oxygen permeability or use pigments that could potentially harm the eyes.

Preventing Trouble in the Salon

To provide safe and reliable service to clients, keep the following in mind:

Pre-Screening: Ask clients during booking if they wear contact lenses.
Pre-Procedure Instructions: Inform clients they need to remove their lenses before the procedure and may not be able to reinsert them for about 2 hours afterwards. Ask them to bring their lens case and glasses.
Storage: During the procedure, store the client's contact lenses in a clean, designated place.

Conclusion: Safe Lashing Through Proper Knowledge

Understanding the correct handling of contact lenses and associated risks is essential for enjoying eyelash extensions safely. Both salons and clients should be aware of the potential issues and take necessary precautions through thorough preparation and communication. If you experience any eye abnormalities, consult an eye doctor promptly without self-diagnosing.