Related Experiment Video
Updated: Apr 12, 2026

09:31
Determining the Toxicity of UV Radiation and Chemicals on Primary and Immortalized Human Corneal Epithelial Cells
Published on: July 22, 2021
2.8K
Predictive Factors Associated With Acute Ocular Involvement in Stevens-Johnson Syndrome and Toxic Epidermal
Chie Sotozono1, Mayumi Ueta1, Eiji Nakatani2
1Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
American Journal of Ophthalmology
|May 17, 2015
Summary
This study developed an objective score to grade acute ocular severity in Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Young age and NSAID/cold remedy use predict severe ocular outcomes in SJS/TEN patients.
Area of Science:
- Ophthalmology
- Dermatology
- Clinical Toxicology
Background:
- Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe mucocutaneous reactions.
- Ocular involvement is a major cause of morbidity in SJS/TEN.
- Lack of objective grading for acute ocular severity hinders timely intervention.
Purpose of the Study:
- To propose an objective scoring system for acute ocular severity in SJS and TEN.
- To identify predictors of severe ocular complications, including epithelial defects and pseudomembranes.
Main Methods:
- Retrospective cohort study analyzing medical records of 87 SJS and 48 TEN patients (2005-2007).
- Developed a 0-3 severity score based on hyperemia, epithelial defects, and pseudomembranes.
- Examined associations between severe ocular involvement and patient age, drug exposure, and systemic severity.
Main Results:
- An objective ocular severity score was established.
- Patient age (OR 0.98) and exposure to NSAIDs or cold remedies (OR 2.58) were significant predictors of severe acute ocular involvement.
- Increased ocular severity correlated with higher prevalence of visual disturbance and dry eye.
Conclusions:
- An objective score aids in grading acute ocular severity in SJS/TEN.
- Younger patients and those exposed to NSAIDs or cold remedies require vigilant ocular monitoring at SJS/TEN onset.
Related Concept Videos
Drug Toxicity: Allergic Reactions
173
Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial...
173
Drug Toxicity: Risk factors
209
Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
209
Microbiome of the Eye
58
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...
58

