NBEO- Physiological Optics (Mostly Conceptual)
Exam | Questions and Answers | Verified
Solutions | 2026 Edition | Pass Guaranteed
Save
Terms in this set (340)
Which of the following is NOT true B (BIO has larger depth of focus)
when comparing BIO to Direct
Ophthalmoscopy?
A) BIO provides a larger field of view
than Direct Ophthalmoscopy
B) Direct Ophthalmoscopy has a
larger depth of focus than BIO
C) Direct Ophthalmoscopy has more
magnification than BIO
D) BIO provides a real, inverted
image
E) Direct Ophthalmoscopy provides
a virtual, upright image
Does BIO or Direct Ophthalmoscopy BIO
form a real, inverted image?
Does BIO or Direct Ophthalmoscopy Direct Ophthalmoscopy
form a virtual, upright image?
,What is the equation for manual x = f^2 Fv
Lensometry? x= distance target is moved (m), if target is moved
away from doctor then x= (-)
f= focal length of standard lens (m)
Fv= Back vertex power
If the center of the cross hairs falls to A) BI
the right of the center of the bulls-
eye during lensometry, what type of
prism is in the lens if you are
measuring the right eye?
A) BI
B) BO
C) BU
D) BD
Will a minus lens have "with" or With
"against" motion during hand
neutralization?
Will a plus lens have "with" or Against
"against" motion during hand
neutralization?
What is the primary purpose of a B) Measures the base curve of RGP
Radiuscope?
A) Measures the sag
B) Measures the base curve of RGP
C) Measures the base curve of soft
lens
D) Measures the peripheral curves of
RGP
, A Keratometer measures the central 3 mm
___________ mm of the cornea.
For Keratometry, the cornea acts as Convex mirror
which type of mirror? Convex or
Concave?
What is the primary purpose of a A) Measures the sag of a lens
Lens Clock?
A) Measures the sag of a lens
B) Measures the base curve of RGP
C) Measures the base curve of soft
lens
D) Measures the peripheral curves of
RGP
Fundus lenses are often used in B and C
conjunction with a Slit Lamp during
posterior segment evaluation. Which
of the following is true regarding
fundus lenses used with Slit Lamp?
(Choose 2)
A) Higher powered fundus lenses
have greater magnification
B) Higher powered fundus lenses
have lower magnification
C) Higher powered fundus lenses
have increased field of view
D) Higher powered fundus lenses
have decreased field of view
Would you expect a +90D or +78D to +78D
have greater magnification when
used during Slit Lamp?
Exam | Questions and Answers | Verified
Solutions | 2026 Edition | Pass Guaranteed
Save
Terms in this set (340)
Which of the following is NOT true B (BIO has larger depth of focus)
when comparing BIO to Direct
Ophthalmoscopy?
A) BIO provides a larger field of view
than Direct Ophthalmoscopy
B) Direct Ophthalmoscopy has a
larger depth of focus than BIO
C) Direct Ophthalmoscopy has more
magnification than BIO
D) BIO provides a real, inverted
image
E) Direct Ophthalmoscopy provides
a virtual, upright image
Does BIO or Direct Ophthalmoscopy BIO
form a real, inverted image?
Does BIO or Direct Ophthalmoscopy Direct Ophthalmoscopy
form a virtual, upright image?
,What is the equation for manual x = f^2 Fv
Lensometry? x= distance target is moved (m), if target is moved
away from doctor then x= (-)
f= focal length of standard lens (m)
Fv= Back vertex power
If the center of the cross hairs falls to A) BI
the right of the center of the bulls-
eye during lensometry, what type of
prism is in the lens if you are
measuring the right eye?
A) BI
B) BO
C) BU
D) BD
Will a minus lens have "with" or With
"against" motion during hand
neutralization?
Will a plus lens have "with" or Against
"against" motion during hand
neutralization?
What is the primary purpose of a B) Measures the base curve of RGP
Radiuscope?
A) Measures the sag
B) Measures the base curve of RGP
C) Measures the base curve of soft
lens
D) Measures the peripheral curves of
RGP
, A Keratometer measures the central 3 mm
___________ mm of the cornea.
For Keratometry, the cornea acts as Convex mirror
which type of mirror? Convex or
Concave?
What is the primary purpose of a A) Measures the sag of a lens
Lens Clock?
A) Measures the sag of a lens
B) Measures the base curve of RGP
C) Measures the base curve of soft
lens
D) Measures the peripheral curves of
RGP
Fundus lenses are often used in B and C
conjunction with a Slit Lamp during
posterior segment evaluation. Which
of the following is true regarding
fundus lenses used with Slit Lamp?
(Choose 2)
A) Higher powered fundus lenses
have greater magnification
B) Higher powered fundus lenses
have lower magnification
C) Higher powered fundus lenses
have increased field of view
D) Higher powered fundus lenses
have decreased field of view
Would you expect a +90D or +78D to +78D
have greater magnification when
used during Slit Lamp?
