Related Experiment Video
Updated: May 8, 2026
14:54
Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy
Published on: November 29, 2015
8.7K
Severe Linear Retinal Burn from a Handheld Laser Pointer in a Pediatric Patient: A Case Report
Kevin Shan1,2, Elizabeth A Atchison3,1
1Ophthalmology Limited, Sioux Falls, South Dakota.
Summary
Handheld green laser pointers can cause severe retinal damage in children, leading to maculopathy and persistent vision loss. This case highlights the risks of high-power lasers and the need for increased public awareness and safety regulations.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Medical Imaging
Background:
- Presents a unique case of handheld laser-induced retinal injury in a pediatric patient.
- Highlights the risks associated with high-power laser pointers, commonly available to the public.
Observation:
- A 12-year-old boy experienced a scotoma after using a 5 mW, 532 nm green laser pointer.
- Fundus examination revealed a linear burn at the macula, consistent with laser-induced phototoxicity.
- Fundus autofluorescence (FAF) showed disruption of the outer retina and retinal pigment epithelium (RPE).
Findings:
- The injury resulted in maculopathy and a linear scotoma.
- Symptoms improved over three years, but the scotoma persisted.
- This case demonstrates a previously unreported pattern of retinal injury.
Implications:
- Underscores the importance of multimodal imaging, including FAF, for diagnosing laser-induced retinal injuries.
- Stresses the need for increased public awareness and stricter safety regulations for laser pointers.
- Suggests further investigation into effective treatment options for such injuries.
Related Concept Videos
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...
01:27Diabetic Retinopathy
DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...