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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
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Related Experiment Video

Updated: Jul 2, 2025

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
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Conjunctival Nevus.

Jaxon J Huang1,2,3, Elyana V T Locatelli1,2,3, Alberto Chocron1,2,3

  • 1Bascom Palmer Eye Institute, University of Miami, 900 NW 17Th Street, Miami, FL 33136, USA.

Current Ophthalmology Reports
|February 23, 2024
PubMed
Summary

Conjunctival nevi (CN) are common, benign pigmented lesions, representing the most frequent conjunctival melanocytic tumors. Due to their very low risk of malignant transformation, routine observation is the standard management approach.

Keywords:
Conjunctival melanocytic tumorConjunctival melanomaConjunctival nevusMalignant melanoma

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Area of Science:

  • Ophthalmology
  • Dermatology
  • Oncology

Background:

  • Conjunctival nevi (CN) are the most common conjunctival melanocytic tumors.
  • They are benign, variably pigmented lesions with a very low risk of malignant transformation.
  • CN typically affect White individuals, equally distributed between males and females, often presenting in the first to third decade of life.

Purpose of the Study:

  • To review the current epidemiology of conjunctival nevi.
  • To describe the clinical presentation and diagnostic methods for conjunctival nevi.
  • To outline the treatment and management strategies for conjunctival nevi.

Main Methods:

  • Literature review of epidemiological data.
  • Analysis of clinical presentation characteristics.
  • Evaluation of diagnostic modalities including slit lamp examination and anterior segment optical coherence tomography (AS-OCT).
  • Review of histopathological findings and management guidelines.

Main Results:

  • Conjunctival nevi (CN) constitute 17.2%-42% of all conjunctival tumors.
  • Typical presentation involves the interpalpebral bulbar conjunctiva, with lesions being well-circumscribed, elevated, and variably pigmented.
  • Slit lamp examination and AS-OCT aid in diagnosis by revealing characteristic features like sub-clinical cysts, though excisional biopsy with histopathology remains the gold standard.

Conclusions:

  • Conjunctival nevi (CN) are benign lesions with an extremely low risk of malignant melanoma (MM) transformation.
  • Routine observation and photographic documentation are the primary management strategies for CN.
  • Accurate diagnosis through clinical examination and imaging, with histopathology for ambiguous cases, is crucial.