The ________tunic is the vascular layer consisting of the choroid, the ciliary body, and the iris.
The _________junction is the area where the transparent collagen bundles of the cornea transition to the white opaque fibers of the sclera.
The ________drains fluid from the anterior chamber of the eye and communicates with the venous system.
Canal of Schlemm
To focus on near objects, the ciliary muscles contract and the lens becomes ______ thus keeping the object in focus.
________ results from increased intraocular pressure due to obstruction of the outflow of aqueous humor.
___________ occurs when the patient shifts focus from a distant object to a near object and the pupils constrict and the curvature of the lens is changed to adjust.
_________ refers to the slight coming together of the eyes when the focus is shifted from far to near.
_________ is a thin, gray-white arc or circle, not quite at the edge of the cornea, caused by lipid deposits.
__________ (crossed-eyes) is a manifest lack of parallelism of the visual axis of the eyes, resulting in the absence of binocular fixation.
__________ ("lazy eye") is caused by a disruption of the normal development of vision, that results in reduced visual acuity that is not correctable by refractive means.
Normal intraocular pressure (IOP) is __ to __ mm Hg, and is measured by a device called a tonometer.
10 to 24
A _______ is an instrument consisting of a microscope combined with a rectangular light source that can be narrowed into a slit.
_________ is a flat, slightly raised, irregularly shaped, yellow tinted lesion on the periorbital tissues that represents depositions of lipids.
___________ discharge usually indicates bacterial infection of the conjunctiva, cornea, or lacrimal sac.
Tearing, ropy discharge and itching usually is a result of _______ ___________.
An individual is visually impaired if the best corrected distant visual acuity in the better eye is _____/_____ or less, or if the visual fields are significantly restricted.
______ _______ is defined as visual acuity for distant vision of 20/200 or less in the better eye with best correction.
Visual acuity should be tested for each eye in turn, using a ________ chart (alphabet or "E" chart).
Visual acuity is expressed as two numbers: the first indicates the distance of the patient from the ____, and the second, the distance at which a normal eye can read the line of letters.
Vision of 20/200 means that at ___ feet the patient can read print that a person with normal vision could read at _____ feet.
_______ _______ pupils are small, irregular pupils that accommodate but do not react to light, seen in central nervous system syphilis.
Cataracts and other lens abnormalities can be easily examined using the ___ to ___ diopter setting.
+10 to +12
The long globe associated with myopia is best examined using the _______ red numbers on the ophthalmoscope (turning counter-clockwise from zero).
The short globe associated with hyperopia is best examined using the ______ black or green numbers on the ophthalmoscope (turning clockwise from zero).
The glands of ____ are modified sebaceous glands whose secretions flow to the edge of the eyelid into the hair follicles of the eye lashes.
A _________ is an acute development of a small abscess within a gland of the upper or lower eyelid of one eye (most commonly the upper eyelid).
An _______ hordeolum, also known as a sty, is smaller and is caused by inflammation and infection of the glands of Moll or Zeis, with abscess formation in those glands.
An ________ hordeolum is a meibomian gland abscess that is situated deep from the palpebral margin, and points onto the conjunctival surface of the lid.
________ is a common granulomatous inflammation of a meibomian gland that may follow an internal hordeolum.
_________ is defined as an inward turning (inversion) of the eyelid and lashes (usually the lower).
__________ is infection and inflammation of the lacrimal sac due to obstruction of the nasolacrimal system.
In ______ dacryocystitis, the usual infectious organisms are Staphylococcus aureus, and Beta-hemolytic streptococci.
In ______ dacryocystitis, Staphylococcus epidermidis, anaerobic streptococci, and, or Candida albicans are the usual infectious organisms.
_______ nasolacrimal duct obstruction is common in the newborn after the first month of life, and occurs when the duct does not open.
__________ is an uncommon condition involving acute inflammation of the lacrimal gland.
_______ dacryoadenitis is most often seen in children as a complication of mumps, measles, or influenza.