Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
Muscles of the Eye01:20

Muscles of the Eye

The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mechanistic insights into volatile ruthenium tetroxide formation during evaporation-to-dryness accidents of high-level liquid waste.

Journal of hazardous materials·2026
Same author

New insights into JAK2 germline variant-driven stromal cell alterations and proinflammatory bone marrow niche remodeling in myeloproliferative neoplasms.

Leukemia·2026
Same author

Correlation between Delayed Relief after Microvascular Decompression and Morphology of the Lateral Spread Response in Patients with Hemifacial Spasm-Temporal versus Mandibular Branch Stimulation.

Neurologia medico-chirurgica·2026
Same author

Efficacy and safety of a three-step dose escalation regimen of ropeginterferon alfa-2b in Japanese patients with polycythemia vera: a phase 3b, single-arm, multicenter study.

International journal of hematology·2026
Same author

General Anesthesia for a Child With Sjögren-Larsson Syndrome.

Anesthesia progress·2026
Same author

Prospective observational study to assess the prognosis of patients with myeloproliferative neoplasms in Japan (MPN-15): results of baseline analysis.

International journal of hematology·2026

Related Experiment Video

Updated: May 27, 2026

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation
08:13

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

Published on: November 11, 2025

Ocular disorders due to eyelash extensions.

Yuki Amano1, Yuka Sugimoto, Minoru Sugita

  • 1Department of Ophthalmology, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan. yuki97002@hotmail.com

Cornea
|December 3, 2011
PubMed
Summary

Eyelash extensions can cause eye problems like keratoconjunctivitis and allergic blepharitis due to formaldehyde in glues. All analyzed glues contained formaldehyde, necessitating improved safety and practitioner knowledge.

More Related Videos

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

Related Experiment Videos

Last Updated: May 27, 2026

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation
08:13

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

Published on: November 11, 2025

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

Area of Science:

  • Ophthalmology
  • Dermatology
  • Cosmetic Science

Background:

  • Eyelash extensions are increasingly popular globally for a natural look.
  • The use of bonding agents (glues) near the eyes has led to a rise in ophthalmologic consultations.
  • Concerns exist regarding potential adverse ocular effects from eyelash extension procedures.

Purpose of the Study:

  • To investigate ocular disorders associated with eyelash extensions.
  • To identify the specific eye conditions resulting from eyelash extension application.
  • To analyze the chemical composition of eyelash extension glues for potential causative agents.

Main Methods:

  • Retrospective investigation of 107 women with eye symptoms from eyelash extensions.
  • Patients aged 21-52 years visited ophthalmologic clinics between March 2007 and March 2010.
  • Chemical analysis of three undisclosed eyelash extension glues for over 70 suspected ingredients.

Main Results:

  • Common disorders included keratoconjunctivitis (64 patients) and allergic blepharitis (42 patients).
  • Eyelid-fixing tapes caused conjunctival erosion and allergic blepharitis in 4 patients.
  • Formaldehyde was detected above threshold levels in all three glues; lead and benzoic acid were also found at low concentrations.

Conclusions:

  • Eyelash extension glues containing formaldehyde can cause keratoconjunctivitis and allergic blepharitis.
  • Improved hygiene, handling of solvents, glue formulations, and practitioner training are essential.
  • Addressing these factors can mitigate ocular risks associated with eyelash extensions.