Related Experiment Video
Updated: Jul 6, 2026
03:59
Surgical Correction for Pediatric Epiblepharon and Trichiasis
Published on: July 8, 2025
Pediatric Graves' ophthalmopathy: the pre- and postpubertal experience
Henry Holt1, David G Hunter, Jessica Smith
1University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom.
Summary
Pediatric Graves
Area of Science:
- Pediatric Endocrinology
- Ophthalmology
- Genetics
Background:
- Graves' disease is a rare autoimmune disorder affecting children.
- Graves' orbitopathy, a common manifestation, is not well-characterized in pediatric populations.
- Unique features of prepubertal Graves' orbitopathy require further description.
Purpose of the Study:
- To compare pre- and postpubertal Graves' orbitopathy in children.
- To describe unique features of prepubertal Graves' orbitopathy.
- To contrast findings with previously reported data.
Main Methods:
- Retrospective chart review of children with Graves' disease (1996-2006).
- Segregation of patients into pre- and postpubertal groups using Tanner staging.
- Comparison of ophthalmic findings including eyelid abnormalities, proptosis, and strabismus.
Main Results:
- 85 (52%) of 163 patients had ocular signs; girls outnumbered boys 7:1.
- Prepubertal group (n=6): 83% lid retraction/lag, 50% proptosis, no strabismus.
- Postpubertal group (n=21): 86% lid lag/retraction, 80% proptosis, 24% restrictive strabismus.
Conclusions:
- Ophthalmology consultations were obtained in only 16% of treated patients.
- Prepubertal Graves' orbitopathy appears less severe with no restrictive strabismus.
- Small sample size precluded meaningful statistical analysis of prepubertal findings.
Related Concept Videos
01:22Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption
As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
01:23Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
01:22Photoreceptors 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...
01:24Pharmacokinetics in Pediatric Patients: Drug Metabolism
In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses a challenge in...
01:25Glaucoma: 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...
01:26Pharmacokinetics in Pediatric Patients: Drug Excretion
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...