LASEK is a type of laser eye surgery that reshapes the clear front window of the eye (the cornea) so light focuses sharply on the retina. It is a “surface ...
Langerhans Cell Histiocytosis (LCH) is a rare disease where a type of immune cell—called a Langerhans cell (a kind of dendritic cell that usually helps your ...
Landolt ring–shaped epithelial keratopathy (LRSEK) is a very rare corneal surface disorder. In this condition, tiny C-shaped (Landolt ring–like) spots appear ...
A lamellar macular hole is a small, shallow split or missing piece of tissue in the inner layers of the macula (the sharp-vision center of your retina). Think ...
Lacrimal sump syndrome is a cause of persistent tearing (epiphora) after a tear-duct bypass operation called dacryocystorhinostomy (DCR). In this problem, a ...
Your tear system is a small plumbing network. Tears flow from the eye corners through two tiny holes (puncta), into short channels (canaliculi), down into a ...
A lacrimal sac papilloma is a papilloma that grows from the lining of the tear drainage sac. The sac lining is “respiratory-type” mucosa (similar to nasal ...
The lacrimal gland is the tear-making gland. You have one above each eye, tucked into the outer (temporal) corner of the upper eyelid. It sits in a shallow ...
Lacrimal gland dislocation (also called prolapse or displacement) means the tear‑making gland has slipped forward and downward from its normal seat in the ...
Your lacrimal glands make tears. Each eye has one, sitting up and out toward the eyebrow in a small bony pocket called the “lacrimal fossa.” A web of thin ...
Epiphora is the medical word for eyes that water too much. Tears spill over the eyelid and run down the face instead of staying on the eye surface or draining ...
A lacrimal gland abscess is a pocket of pus that forms inside the lacrimal gland, the tear-making gland that sits at the upper-outer corner of the eye socket ...
A lacrimal fistula is an unnatural small tunnel (a tiny tube-like passage) that forms between the tear drainage system and the skin near the inner corner of ...
Segmental retinal arteritis (often called Kyrieleis arteritis or Kyrieleis plaques) is a very specific pattern of inflammation in the tiny arteries of the ...
Kyrieleis vasculitis (also called Kyrieleis arteriolitis, segmental retinal arteritis, or segmental retinal periarteritis) is a rare eye finding seen on a ...
Kyrieleis arteriolitis means there are small, bead-like white patches sitting inside the wall of the retinal arteries (the tiny blood vessels that bring blood ...