MIDTERM Flashcards
An objective examination to determine the presence and absence of pathology
Ophthalmoscopy
If patient has photophobia the aperture is placed at the _____
Center
Myopic pupils use what size of aperture
Large
Hyperopic patients uses what aperture
Medium
Filter used to enhance contrast in blood vessels
Red free filter
Filter used after staining with fluorescein dye to observe corneal abrasions, punctate keratitis and lesions in the cornea
Cobalt blue filter
Filter used to reduce the UV exposure
Neutral or yellow filter
Filter used to reduce glare during retinal examination. If patient has photophobia
Polarising filter
If the opacity moves rapidly moves “with the instrument or eye”, the opacity is in the ___
Cornea
If the opacity moves slowly “with the instrument or eye”, the opacity is located at ___
Anterior of crystalline lens
If the opacity does not move with the instrument or eye, the opacity is located at ____
Crystalline lens
If the opacity moves opposite with the instrument or eye, the opacity is located at
Posterior of crystalline lens
Blood on the anterior chamber of the eye
Hyphema
Pus on the anterior chamber of the eye
Hypopyon
When the examiner sees a superior light crescent on the Bruckner test, the patient has ___
Hyperopia
When the examiner sees a inferior light crescent on the Bruckner test, the patient has ___
Myopia
When the examiner sees an inferior shadow on the Bruckner test, the patient has ___
Hyperopia
When the examiner sees a superior shadow on the Bruckner test, the patient has ___
Myopia
T/F Arteries should be larger then veins
T
T/F Vein should be larger than arteries
F- smaller
If veins are straight, what does it indicate?
May pressure sa body ni px
If a black ring is present around the optic disc, it is called
Choroidal ring
If a white ring is present around the optic disc, it is called
Scleral ring
If the optic disc is larger in size, the patient is
Myopic
If the optic disc is smaller in size, the patient is
Hyperopic
If the optic disc is slightly oval, the patient has
Astigmatism
The image formed in direct ophthalmoscopy is
Virtual and erect
Image formed in indirect ophthalmoscopy is
Real and inverted
Objective examination that can measure the radius of curvature of the cornea
Ophthalmometry
Best instrument used to observe the details of the cornea
Corneal topographer
Ultimate goal of keratometry
Fusion of doubling mires
Fusion of negative mires
Fusion of positive mires
Recenter cross hair @ 2nd and 3rd
An empirically determined relationship between corneal and refractive astigmatism
Javal’s rule
If the corneal astigmatism is greater than refractive astigmatism, it is best to prescribe
Back surface toric
If the refractive astigmatism is greater than corneal astigmatism, it is best to prescribe
Soft toric CL or spectacle
What is back surface toric?
Cyl power at the back, sph power in front
What is front surface toric?
Sph power at the back, cyl power in front
An objective method to determine the refractive error of the eye
Retinoscopy
Mirror effect created by sleeve down
Plano
Mirror effect created by sleeve up
Concave
Light on the pupil area is called
Reflex
If the motion is “with movement” what is the EOR?
HEM (-0.25 to -1.75)
If the motion is against movement, what is the EOR?
Myopia (-2.25 & above)
If the motion has no movement, what is the EOR?
Myopia (-2.00D)
A procedure by which retinoscopy is performed with lesser working distance
Radical retinoscopy
An objective, near retinoscopy technique for assessing non-cycloplegic refraction in infants and young children w/ strabismus
Mohindra retinoscopy
