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

4.7K
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...
4.7K
Muscles of the Eye01:20

Muscles of the Eye

6.2K
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...
6.2K
Muscles for Facial Expressions01:14

Muscles for Facial Expressions

6.2K
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
6.2K
Cranial Nerves: Types Part I01:14

Cranial Nerves: Types Part I

6.7K
Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves, with the first six being essential in sensory perception, motor control, and autonomic functions related to the head and neck.
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
6.7K
Association Areas of the Cortex01:21

Association Areas of the Cortex

10.8K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
10.8K
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

1.1K
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Differential Associations Between Religiosity and Cognition in the Korean Elderly With Alzheimer's Disease.

Psychiatry investigation·2026
Same author

Mitochondrial genome refinement and comparative phylogenetics of Parastrongyloides trichosuri (KNP strain; Nematoda: Strongyloididae) from South Africa.

Memorias do Instituto Oswaldo Cruz·2026
Same author

Mechanisms responsible for pacemaker activity in human gastric muscles.

The Journal of physiology·2026
Same author

Meckel's Diverticulum as a Rare Etiology of Small-Bowel Obstruction in an Otherwise Healthy Adult: A Case Report.

Cureus·2026
Same author

AVATA Cure Digital Therapeutics for Social Communication in Children With Autism Spectrum Disorder: A Pilot Clinical Trial.

Psychiatry investigation·2026
Same author

Deep cerebellar stimulation restores chronic motor deficits and loss of GABAergic neurons following sensorimotor cortex surgical brain injury in female rats.

Experimental neurology·2026
Same journal

Accuracy of the revised Baux score for predicting in-hospital mortality of patients with burns: A retrospective cohort study from Ethiopia.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
Same journal

Angiosomes of the medial femoral condyle: Anatomical study of cutaneous perforators.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
Same journal

Biparietal osteodystrophy: Nuances of clinical presentation and natural history.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
Same journal

Decreased need for botulinum toxin and nerve blocks after headache surgery.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
Same journal

Two-stage bone grafting for nasal correction in late-presenting patients with unilateral cleft: A 3-year comparative study.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
Same journal

Intraoperative repair of a transected Cook-Swartz implantable doppler: A salvage technique.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
See all related articles

Related Experiment Video

Updated: Apr 17, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

824

Does upper blepharoplasty affect frontalis tonicity?

Daejin Kim1, Daegu Son1, Minkyung Kim1

  • 1Department of Plastic and Reconstructive Surgery, School of Medicine, Keimyung University, 194 Dongsan-dong, Daegu, Republic of Korea.

Journal of Plastic, Reconstructive & Aesthetic Surgery : JPRAS
|February 25, 2015
PubMed
Summary
This summary is machine-generated.

Upper blepharoplasty surgery led to a gradual decrease in frontalis muscle activity, as measured by electromyography (EMG). This finding suggests potential impacts on facial expressions and human-computer interaction.

Keywords:
BlepharoptosisFrontalis muscleNeedle electromyogramUpper blepharoplasty

More Related Videos

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
19:53

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer

Published on: March 1, 2015

106.7K
Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System
12:06

Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System

Published on: May 12, 2011

21.6K

Related Experiment Videos

Last Updated: Apr 17, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

824
Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
19:53

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer

Published on: March 1, 2015

106.7K
Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System
12:06

Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System

Published on: May 12, 2011

21.6K

Area of Science:

  • Oculoplastic surgery
  • Facial electromyography
  • Human-computer interaction

Background:

  • Frontalis muscle overactivity is linked to dermatochalasia and blepharoptosis.
  • The effect of upper blepharoplasty on the frontalis muscle remains under-investigated.
  • This study explores frontalis muscle electrophysiology and eyebrow morphology post-upper blepharoplasty.

Purpose of the Study:

  • To investigate the electrophysiological changes in the frontalis muscle after upper blepharoplasty.
  • To assess the impact of upper blepharoplasty on eyebrow morphology.

Main Methods:

  • Prospective study of patients undergoing upper blepharoplasty.
  • Exclusion criteria included visual obstruction, trauma history, and medical conditions affecting eyebrow height or EMG.
  • Eyebrow morphology assessed via photogrammetry; frontalis muscle activity recorded using needle EMG and normalized with root-mean-square (RMS) indices.

Main Results:

  • Thirteen patients (mean age 55.5 years) were included.
  • No significant changes in eyebrow height were observed.
  • A statistically significant decrease in the frontalis muscle's proportional RMS index was noted between preoperation and 6 months postoperation (p < 0.05).

Conclusions:

  • Upper blepharoplasty is associated with a gradual reduction in frontalis muscle activity.
  • Further research is needed to determine if this leads to morphological changes like reduced forehead wrinkles or eyebrow ptosis.
  • Findings suggest upper blepharoplasty may influence human-computer interaction designs utilizing facial EMG input.