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Related Concept Videos

Microbiome of the Eye01:22

Microbiome of the Eye

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...
Ophthalmic Drug Delivery Systems01:23

Ophthalmic Drug Delivery Systems

Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

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...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...

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Updated: Jun 18, 2026

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation
08:13

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

Published on: November 11, 2025

[Focus on dry eye diagnosis].

Zhi-Qiang Pan

    [Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
    |December 5, 2009
    PubMed
    Summary

    Accurate diagnosis of dry eye is crucial for effective treatment. This article reviews changes in dry eye definitions and evaluates various diagnostic tools to guide clinical practice.

    Area of Science:

    • Ophthalmology
    • Clinical diagnostics

    Background:

    • Dry eye disease (DED) is a complex condition affecting multiple ocular structures, significantly impacting patient quality of life.
    • Accurate diagnosis is paramount for successful DED management.

    Discussion:

    • This review analyzes the evolution of dry eye definitions.
    • Various clinical diagnostic tools for dry eye are evaluated, comparing their advantages and disadvantages.
    • Systematic comparison of diagnostic methods aids in selecting efficient and accurate tools.

    Key Insights:

    • Understanding the multifactorial nature of dry eye is essential.
    • The article provides a comprehensive overview of current diagnostic approaches for dry eye.
    • Choosing the right diagnostic tool prevents ineffective or "blind" treatment.

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    Clinical Application of Intense Pulsed Light Therapy and Radio Frequency for Treatment of Ocular Surface Diseases
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    In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation
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    Published on: November 11, 2025

    Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19
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    Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19

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    Clinical Application of Intense Pulsed Light Therapy and Radio Frequency for Treatment of Ocular Surface Diseases
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    Clinical Application of Intense Pulsed Light Therapy and Radio Frequency for Treatment of Ocular Surface Diseases

    Published on: July 3, 2025

    Outlook:

    • Future research may focus on refining diagnostic criteria and developing novel diagnostic technologies.
    • Standardization of diagnostic protocols can improve consistency in DED assessment.
    • Enhanced diagnostic accuracy will lead to more personalized and effective dry eye therapies.