Eagleview Eye Clinic

Tag eye diseases

TRABECULAE MESHWORK

The trabecular meshwork is a key structure in the eye. Key features:

  1. Location: Located near the base of the iris, in the angle of the anterior chamber.
  2. Function:
    • Drains aqueous humor from the eye
    • Regulates intraocular pressure by controlling outflow of aqueous humor
  3. Importance: Dysfunction or blockage of the trabecular meshwork can lead to increased intraocular pressure and conditions like glaucoma.

The trabecular meshwork plays a crucial role in maintaining healthy intraocular pressure.

AQUEOUS HUMOR

The aqueous humor is a clear fluid in the eye. Key features:

  1. Location: Fills the anterior chamber (between the cornea and iris) and posterior chamber (between the iris and lens).
  2. Function:
    • Maintains intraocular pressure
    • Provides nutrients to the lens and cornea
    • Removes waste products
  3. Production and drainage: Produced by the ciliary body, drained through the trabecular meshwork.

Imbalances in aqueous humor dynamics can lead to conditions like glaucoma.

GLAND OF MOLL

The Moll’s glands or glands of Moll. These are:

  1. Location: Small sweat glands located near the eyelashes, specifically in the eyelid margin.
  2. Function: They contribute to the secretion of sweat around the eye area.
  3. Clinical significance: Blockage or infection of these glands can lead to conditions like hordeolum (stye) or blepharitis.

The glands of Moll play a role in maintaining the health of the ocular surface and eyelid area.

GLAND OF MOLL

The Moll’s glands or glands of Moll. These are:

  1. Location: Small sweat glands located near the eyelashes, specifically in the eyelid margin.
  2. Function: They contribute to the secretion of sweat around the eye area.
  3. Clinical significance: Blockage or infection of these glands can lead to conditions like hordeolum (stye) or blepharitis.

The glands of Moll play a role in maintaining the health of the ocular surface and eyelid area.

THE GLÀND OF THE ZEIS

The Glands of Zeis are:

  1. Sebaceous glands: Associated with the eyelashes, producing sebum.
  2. Function: Help keep the eyelashes and surrounding skin healthy, moisturized.
  3. Location: Located near the base of the eyelashes.

Dysfunction or blockage of the Glands of Zeis can lead to conditions like:

  1. Styes (hordeolum)
  2. Chalazion
  3. Blepharitis (inflammation of the eyelids)

These glands play a role in maintaining eyelid and ocular surface health.

THE GLÀND OF THE ZEIS

The Glands of Zeis are:

  1. Sebaceous glands: Associated with the eyelashes, producing sebum.
  2. Function: Help keep the eyelashes and surrounding skin healthy, moisturized.
  3. Location: Located near the base of the eyelashes.

Dysfunction or blockage of the Glands of Zeis can lead to conditions like:

  1. Styes (hordeolum)
  2. Chalazion
  3. Blepharitis (inflammation of the eyelids)

These glands play a role in maintaining eyelid and ocular surface health.

GLÀND OF THE LIDS

Here’s a list of glands associated with the eyelids:

  1. Meibomian glands: Produce meibum, an oily substance that helps lubricate the eyes and prevents excessive evaporation of tears.
  2. Glands of Zeis: Sebaceous glands associated with the eyelashes, producing sebum that helps to keep the eyelashes and surrounding skin healthy.
  3. Glands of Moll: Sweat glands located near the eyelashes, contributing to the secretion of sweat around the eye area.

These glands play important roles in maintaining the health and function of the ocular surface and eyelids. Dysfunction or blockage of these glands can lead to various eye conditions.

MEIBOMIAN GLAND

The Meibomian glands are small oil-producing glands in the eyelids. Key features:

  1. Location: Located in the tarsal plates of the eyelids.
  2. Function: Produce meibum, a lipid secretion that helps to:
    • Lubricate the eyes
    • Prevent evaporation of tears
    • Maintain the health of the ocular surface
  3. Importance: Dysfunction of the Meibomian glands can lead to:
    • Dry eye syndrome
    • Blepharitis (inflammation of the eyelids)
    • Ocular surface disorders

The Meibomian glands play a crucial role in maintaining the health and function of the ocular surface.

RETINAL BIPOLAR CELLS

Retinal bipolar cells are interneurons in the retina that play a crucial role in visual processing. Key features:

  1. Signal transmission: Bipolar cells transmit signals from photoreceptors (rods and cones) to ganglion cells.
  2. ON and OFF pathways: There are two main types of bipolar cells:
    • ON bipolar cells: Activated by light increments.
    • OFF bipolar cells: Activated by light decrements.
  3. Visual processing: Bipolar cells contribute to the processing of visual information, including contrast enhancement and signal amplification.

Bipolar cells are essential for the transmission and processing of visual signals in the retina, enabling the detection of changes in light intensity and the transmission of these signals to the brain.

CORNEA ENDOTHELIUM

The corneal endothelium is the innermost layer of the cornea. Key features:

  1. Single cell layer: Composed of a single layer of hexagonal cells.
  2. Pump function: Maintains corneal clarity by pumping excess fluid out of the stroma, preventing edema.
  3. Limited regenerative capacity: Unlike the epithelium, the endothelial cells have limited ability to regenerate in humans.
  4. Essential for transparency: The endothelial pump function is crucial for maintaining corneal deturgescence and transparency.

The health of the corneal endothelium is vital for maintaining corneal clarity and proper vision. Damage or dysfunction can lead to corneal edema and vision loss.