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

The Parathyroid Glands00:59

The Parathyroid Glands

5.7K
The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by...
5.7K
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

10.6K
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,...
10.6K
Glaucoma: Overview01:25

Glaucoma: Overview

1.6K
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...
1.6K
Hormones and Bone Tissue01:17

Hormones and Bone Tissue

4.1K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
4.1K

You might also read

Related Articles

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

Sort by
Same author

Electrical Impedance Tomography for Real-Time PEEP Monitoring and Atelectasis During Mask Ventilation: A Randomized Controlled Physiological Trial.

Anesthesia and analgesiaĀ·2026
Same author

EndoArt: Indications, Mechanism of Action, Outcomes, and Complications.

Klinische Monatsblatter fur AugenheilkundeĀ·2026
Same author

[Light-induced immunomodulation : Corneal cross-linking to reduce neovascularization and optimize outcomes prior to corneal transplantation].

Die OphthalmologieĀ·2026
Same author

The impact of vision impairment on living with congenital aniridia: a pan-European survey study.

Orphanet journal of rare diseasesĀ·2026
Same author

[Inflammatory Eye Diseases].

Klinische Monatsblatter fur AugenheilkundeĀ·2026
Same author

Early postoperative corneal thickness and 12-month endothelial cell outcomes after descemet membrane endothelial keratoplasty: A multicentre analysis.

Acta ophthalmologicaĀ·2026

Related Experiment Video

Updated: Mar 16, 2026

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
03:57

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

Published on: July 14, 2023

2.4K

Cataract in pseudohypoparathyroidism.

Rafael S Grajewski1, Konrad R Koch1, Hans-Reinhard Koch1

  • 1From the Department of Ophthalmology (Grajewski, K.R. Koch, Ciotu, Cursiefen, Heindl), University of Cologne, Cologne, and the Hochkreuzklinik Eye Hospital (H.-R. Koch), Bonn, Germany; the Department of Ophthalmology (Ciotu), University Emergency Hospital of Bucharest, Romania.

Journal of Cataract and Refractive Surgery
|August 6, 2016
PubMed
Summary
This summary is machine-generated.

This case study highlights how early visual disturbances like photopsia can signal underlying systemic conditions. Early detection of ocular signs may lead to diagnosing rare genetic disorders like pseudohypoparathyroidism.

More Related Videos

Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation
07:13

Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation

Published on: March 14, 2017

15.4K
Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

5.2K

Related Experiment Videos

Last Updated: Mar 16, 2026

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
03:57

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

Published on: July 14, 2023

2.4K
Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation
07:13

Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation

Published on: March 14, 2017

15.4K
Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

5.2K

Area of Science:

  • Ophthalmology
  • Genetics
  • Neurology

Background:

  • Pseudohypoparathyroidism is a rare genetic disorder characterized by resistance to parathyroid hormone.
  • Ocular manifestations are infrequently reported in pseudohypoparathyroidism.

Observation:

  • A 22-year-old male presented with a 3-year history of photopsia (visual disturbances) despite normal visual acuity.
  • Ophthalmic examination revealed bilateral, irregular white cortical lens opacifications.
  • The patient later developed seizures and was diagnosed with extensive brain calcification, indicative of pseudohypoparathyroidism.

Findings:

  • The case demonstrates a correlation between subtle ocular findings (cortical opacifications) and a rare systemic disease (pseudohypoparathyroidism).
  • Photopsia and lens opacities can be early, albeit uncommon, signs of this genetic disorder.

Implications:

  • Ophthalmologists and cataract surgeons should consider pseudohypoparathyroidism in patients presenting with unexplained visual symptoms and lens changes.
  • Early recognition of these ocular signs can facilitate timely diagnosis and management of pseudohypoparathyroidism, preventing neurological complications.
  • This case underscores the importance of a comprehensive diagnostic approach, integrating ophthalmological findings with potential systemic pathologies.