EYES Flashcards
Bending of light
Refraction
Lobe responsible for vision
Occipital lobe
Primary site of refraction
Secondary site
- Cornea
- Lens
Eyeball normal shape
Sphere
Part of eye for windshield and outside protection
Cornea
Gives color to eyes
Iris
Responsible sa constrict/ dilate
Pupil
Jelly like that gives shape
Vitreous humor
Pinakalikod na part ng eye
Retina
Sphere or not ang eyeball ng may refractive errors
Not
MYOPIA: ___sighted
Near
MYOPIA: ___eyeball
Elongated
MYOPIA: ___refraction
Strong
MYOPIA: ___focal pt
Anterior to retina
MYOPIA: ___lens
Concave/ diverging
HYPEROPIA:___vision
Long sighted
HYPEROPIA: ___eyeball
Shortened
HYPEROPIA: ___refraction
Weak
HYPEROPIA: ___focal pt
Posterior to retina
HYPEROPIA: ___lens
CONVEx/ CONVErging
ASTIGMATISM:__vision
Both
ASTIGMATISM : ___eyeball
Abnormal
ASTIGMATISM : ___refraction
Uneven curvature of cornea and lens
ASTIGMATISM : ___focal pt
Multiple
ASTIGMATISM : ___lens
Cylindrical
Used to measure distance vision test
Snellen chart
Snellen ilang ft or meters
20 ft or 16 m.
Snellen Eye glasses on? Exception?
Yes except reading glass
Snellen Sequence
R-L-both
Snellen instruction
Basahin smallest line na kaya nya
Snellen interpretation
Pt/ normal vision
Ano normal vision and ano medical term
20/20 EMMETROPIA
Legal blindness: ________
20/200
cloudiness or opacity of the _____ and ano sakit
Lens, Cataract
Colorless, transparent, biconvex structure
Lens
Puting part ng mata
Iris
Pinakaharap na oart ng mata
Cornea
Contains ________ which are proteins that affect the opacity of the lens.
Crystallins
2 main functions ng lens
Refraction and Accommodation
Ability to focus to near/ distant parang portrait mode sa camera
Accommodation
Ability to focus to near/ distant parang portrait mode sa camera
Accommodation
Confirmatory test in cataract
Slit Lamp Examination
Used to assess anterior eye structure w/ binocular microscope.
Slit Lamp Examination
2 Hallmark ng cataract
Cloudy vision
Color perception
Late sx ng cataract
White pupil
Diplopia
Gradual painless loss of vision