A condition in which the eyelid (usually the lower lid) folds inward. It is very uncomfortable, as the eyelashes constantly rub against the cornea and irritate it
How is entropion treated?
Inject saline into eyelid and suture
with simple interrupted sutures
A full-thickness defect in the eyelid
What type of surgical technique is used for
removal of squamous cell carcinoma near the eye?
Sliding Flap technique and Burow's triangles
There are no blood vessels in a normal healthy ______
Corneal stroma is made of collagen
arranged in a _______ fashion
to make it transparent
Name the layers of the cornea from outermost to innermost
This layer of the cornea is the thickest
and is composed of collagen arranged in a parallel manner
The innermost layer of the cornea,
the endothelium is _____ layer thick
Inflammation of the cornea is known as
What are the clinical signs of keratitis (corneal inflammation)?
What type of block can you use to
inhibit blepharospasm in a horse?
Infraorbital block of the frontal nerve
Squinting of the eye due to pain is known as
Why does the eye appear cloudy when corneal edema is present?
fluid in the stromal area causes collagen fibers to
be disorganized, resulting in the cloudy appearance
What test is used to diagnose keratitis?
What layer of the cornea is stained with
the fluorescein test?
In normal corneal healing,
the cornea heals via this mechanism
Why does a corneal ulcer form?
Bacteria invade an epithelial defect in the cornea
causing tissue destruction and eventually
What can the pattern of corneal vascularization tell you?
Depth of corneal ulcer
If you see corneal vascularization in a
circular or branching pattern,
how deep is the ulcer?
What type of corneal vascularization pattern
do you expect to see in cases of a deep ulcer?
Upon corneal inspection, you see
anastomosis of circular branching patterns and straight patterns
in corneal vascularization.
What does this tell you?
The problem is CHRONIC
________ swabs are used to culture
infections of the cornea
because cotton swabs have enzymes that can
mask some infections
What surgical technique is used to treat
and undermined/deep corneal ulcers
after swabbing and trimming with a curette?
Conjunctival pedicle flap
brings more blood vessels to the area to help heal
You see an opacity and stain it with fluorescein, but there
is no uptake of the dye. The epithelial surface is uneven.
What is your dx?
What causes an iris prolapse (Staphyloma)?
An infection that is too deep ruptures into the anterior chamber.
The iris washes anteriorly, meaning it is pulled
against the cornea to plug the hole.
NEVER TOUCH THE IRIS- bleeds profusely
an inflammatory condition of the intraocular cavities (ie, the aqueous and/or vitreous humor) usually caused by infection
How is Endophthalmitis treated?
exenteration of the eyeball (complete removal)
Lens luxation occurs when the lens capsule separates 360° from the zonules. This can eventually lead to
How is lens luxation treated?