Special Senses
Ability to focus for close vision (less than 20 feet).
Accommodation
Blurred vision, resulting from an equal curvatures of the lens or cornea.
Astigmatism
clouding of the lens, resulting in loss of sight.
Cataract
Inflammation of the mucosal lining the eyelids and covering the anterior part of the eyeball is called ______.
Conjunctivitis
Media movement of the eyes during focusing on close objects.
Convergence
Attached to the eyes are the ______ muscles that allow us to direct our eyes toward a moving object.
Extrnsic
The anterior aspect of each eye is protected by the ______, which has eyelashes protecting from their edges.
Eyelids
Condition of increasing pressure inside the eye, resulting from block to drainage of aqueous humor.
Glaucoma
Lateral rectus action
Moves eye laterally
Conjunctiva secretes
Mucus
Nearsightedness
Myopia
Inability to see while in the darker; often a result of vitamin a deficiency.
Night blindness
Closely associated with the lashes or oil secreting glands called ______ that help to lubricate the eyes.
Tarsal glands
Superior oblique action
Turns eyeball inferiorly and laterally
accommodation
ability to focus for close vision (under 20 feet)
astigmatism
blurred vision, resulting from unequal curvatures of the lens or cornea
normal vision
emmetropia
hyperopia
inability to focus well on close objects (farsightedness)
convergence
medial movement of the eyes during focusing on close objects
mypoia
nearsightedness
photopupillary (reflex)
reflex constriction of pupils when they are exposed to bright light
light bending
refraction
Tarsal glands secrete
sebaceous gland - Sebum
Inferior rectus action
turns eyeball inferiorly and medially
Medial rectus action
turns eyeball medially
Inferior oblique action
turns eyeball superiorly and medially
superior rectus action
turns eyeball superiorly and medially
Inability to focus well on close objects; farsightedness.
Hyperopia
Reflex constriction of pupils when they are exposed to bright light.
Photopupillary (reflex)
Lacrimal glands secrete
Salt water and lysozyme