Periferal zigzag lines in eyes12/21/2023 ![]() The line formation is also dependent upon the rate of tear secretion. Some studies have shown that the Hudson-Stahli line is enhanced by chloroquine and hydroxychloroquine toxicity. It is present normally in older people but seems to dissipate to some degree by the age of 70. This line is not caused by any ocular or systemic diseases. The Hudson-Stahli line is about o.5 mm thick and 1-2 mm long. The superficial horizontal brown line was independently described by Hudson in 1911 and Stahli in 1918. It is located roughly on the border between the middle and lower thirds of the cornea (corneal epithelium). The Hudson-Stahli line is a line formed by iron deposition. No treatment is necessary for the Sampaolesi line in the eye but it is vital to monitor for glaucomatous changes. Gonioscopy involves the placing of a mirrored lens on the patient’s cornea to examine the angle structures of the anterior chamber of the eye. It is the hyperpigmentation line seen through gonioscopy. Sampaolesi line is a wavy line found anterior to Schwalbe’s line in pigment dispersion syndrome, pseudoexfoliation syndrome, trauma, or iris melanoma. The detail of the line can be observed through gonioscopy. More precisely, Schwalbe’s line represents the termination of the Descemet’s membrane of the cornea. It represents the peripheral margin or outer limit of the corneal endothelium layer. Schwalbe’s line is a thin, white, or irregularly pigmented line found on the interior surface of the cornea of the eye. See also White Part of the Eye: Sclera Function, Definition & Anatomy Schwalbe’ Lines in Ophthalmology The Arlt’s line got its name after the famous Austrian Ophthalmologist Carl Ferdinand von Arlt. Arlt’s line (lines) runs parallel to the eyelid. The infection leaves a thick band of scar tissue in the conjunctiva near the eyelid margin.Īrlt’s line in the eye is a horizontal line found at the junction of the anterior one-third and posterior two-thirds of the conjunctiva (sulcus subtarsalis). Arlt’s Line in EyeĪrlt’s line is a hallmark of trachoma, a severe infection of the eye caused by Chlamydia trachomatis. al., Stocker’s line is rarely observed in a small pterygium, and the occurrence of the Stoker line is related to the time duration from the onset of the pterygium in the eye. The exact mechanism of iron deposition in the development of advancing pterygium and the formation of the Stoker line is still unknown, but the level of iron is seen in a significantly higher proportion in the pterygium tissue than in the normal conjunctival tissue.Īccording to Hiroto Obata, et. Stocker’s line is a punctate, subepithelial line (or lines) passing in front of the invasive apex of the pterygium. When seen in blue light (cobalt filter), the pigment of Stocker’s line looks dark due to a lack of fluorescence. It is formed by the deposition of hemosiderin (a form of iron) in the conjunctival and corneal epithelial layers. 8, 2017.The Stocker line is a vertical, yellow-brownish line found along the advancing edge of the pterygium. New York, N.Y.: McGraw-Hill Education 2015. Harrison's Principles of Internal Medicine. American Academy of Orthopaedic Surgeons.Elk Grove Village, Ill.: American Academy of Pediatrics 2015. ![]() In: Pediatric Telephone Protocols: Office Version 15th ed. American College of Emergency Physicians.Dizziness: Approach to evaluation and management. Zitelli and Davis' Atlas of Pediatric Physical Diagnosis. Rochester, Minn.: Mayo Foundation for Medical Education and Research 2017. Philadelphia, Pa.: Saunders Elsevier 2016. Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. Emergency Medicine Clinics of North America. Rosen's Emergency Medicine: Concepts and Clinical Practice. ![]()
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