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What makes up the outermost tunic of the eyeball?
Cornea & Sclera
What is the substance found in the posterior cavity?
Vitreous Humor
The anterior chamber is the space bound by what structures?
Anteriorly by the cornea & posteriorly by the front of the iris
What term is used to describe behind the globe of the eye?
Retrobulbar
Be familiar with the diathermy apparatus and cryotherapy unit and what they do.
Diathermy-heat; Cryotherapy- cold (freezing)
What is the trephine used for?
To make a circular cut
What term is used to describe the complete removal of the eye?
Enucleation
Where in the eye is the aqueous humor found?
Anterior Cavity
A deviation of the position of the eye is called?
Stabismus
What is included in the refractive media of the eye?
Cornea, aqueous humor, lens, vitreous humor
What is the process of accommodation described as?
Focus
When a patient has a small lump on the inner or outer surface of the eyelid which
is caused by an inflammatory reaction from material trapped in the oil secreting
gland would be called what?
Chalazion
What makes up the inner tunic of the eye?
Retina
What makes up the two intrinsic muscles of the eye?
Ciliary body and the iris
The posterior chamber of the eye is the space bound by what structures?
Lens, ciliary body, and retina
A patient suffering from an opacity of the crystalline lens would be diagnosed
with a what?
Cataract
If a patient lacks cones that patient would be considered what?
Color blind
Why would Sodium hyaluronate be used on a patient?
Replace the vitreous humor
What is the function of the iris?
Regulates the amount of light entering the eye through the pupil
If a patient has a misshaped cornea it would indicate what?
, Keratoconus
What instrument would be used to remove the cornea from the recipient during a
keratoplasty?
Trephine
The recession/resection is used as the surgical treatment for what disorder?
Strabismus
Glaucoma is a condition in which a patient would experience what?
Excess pressure of the aqueous humor
What instrument would the surgeon use to measure intraocular pressure during a
surgical procedure?
Tonometer
What is the purpose for performing a lacrimal duct dilation?
Open blocked tear ducts
What is phacoemulsification used for?
Removal of an opaque lens (cataract)
What is BSS?
Balanced Salt Solution
What is BSS used for?
Irrigate the cornea
The scleral buckle is a procedure used to treat what pathology of the eye?
Retinal detachment
What are the bones that make up each orbit?
Frontal, Sphenoid, Ethmoid, Maxilla, Malar (zygomatic), Lacrimal, and Palatine
What is the function of the lateral rectus muscle of the eye?
Lateral movement of the eye
What is another name for the zygomatic bone?
Malar bone
Inflammation of the lacrimal sac is called?
Dacryocystitis
Where is the lacrimal gland located within the eye?
In the upper eyelid
Where does the nasolacrimal duct drain into?
Cavity of the nose.
What is the name of the wedge-shaped fleshy encroachment of conjunctiva that
can be found on the cornea?
Pterygium
The posterior capsule remains within the eye during what type of cataract
extraction?
Extracapsular
What is the action of Acetylcholine chloride on the eye?
Constricts the pupil
What type of energy is used for phacoemulsification to fragment the cataract?
Ultrasonic
Why is it important to remove all powder from surgical gloves prior to performing
or assisting with an ophthalmic procedure?
To prevent corneal irritation