Exam Details
Subject | Basic Of Refractive Errors | |
Paper | ||
Exam / Course | Certificate In Dispensing Optics (CDO) | |
Department | School of Health Science (SOHS) | |
Organization | indira gandhi national open university | |
Position | ||
Exam Date | December, 2015 | |
City, State | new delhi, |
Question Paper
1. Myopia is the most common refractive error seen in children.
True
False
None of the above
Can't say
2. "Emmetropia" has perfect vision with refractive error.
True
False
None of the above
Can't say
3. Diabetic retinopathy is the complication of diabetes that can lead to bleeding into the retina.
True
False
None of the above
Can't say
4. Astigmatism usually occurs when the front surface of the eye, the cornea, has an irregular curvature.
True
False
None of the above
Can't say
5. Low myopia usually describes myopia of -3·00 diopters or less.
True
False
None of the above
Can't say
6. Index myopia is attributed to variation in the index of refraction of one or more of the ocular media.
True
False
None of the above
Can't say
7. A refractive error means that the shape of your eye does not bend light correctly, resulting in a blurred image.
True
False
None of the above,
Can't say
8. Spherical errors occur when the optical power of the eye is too powerful or too weak across one meridian ofthe optics.
True
False
None of the above
Can't say
9. The optic nerve carries signals of light, dark, and colours to the area of the brain.
True
False
None of the above
Can't say
10. Monovision can hinder
Depth perception
Binocular perception
Both and
None of the above
11. Astigmatism in infants generally decreases over the first few years of life and stabilizes by about
One year of age
Five years of age
Eight years of age
Three years of age
12. 0-00/-1.00 cyl x 180°, given prescription is the example of
SMA
SHA
Both and
None of the above
13. Hyper<;>pic children are mostly associated with difficulty in reading and
Squinting
Eye rubbing
Lack of interest in school
All of the above
14. Which type of hyperopia occurs when the length of the eyeball is too short but the power of the refracting components of the eye is normal
Curvatural
Index
Refractive
Axial
15. Hyperopia can cause
Eyestrain
Headaches
Intermittent blurred vision
All of the above
16. Which is/are the primary options to treat the visual symptoms of those with myopia?
Spectacles
Contact lenses
Refractive surgery
All of the above.
17. In myopia refractive power of the eye is too
Strong
Weak.
Both and
None of the above
18. In which of the following types of vision correction is the dominant eye given a distance prescription, while the other eye is given a near prescription
Monovision
Binocular vision
and
None of the above
19. In which of the following types of astigmatism, are the meridians in which the two different curves lie located 180 degrees apart
Regular
Irregular
Both and
None of the above
20. Which of the following type(s) of hyperopia, can be corrected by an effort of accommodation?
Absolute hyperopia
Total hyperopia
Facultative hyperopia
Partial hyperopia
21. Nearsightedness is also known as
Myopia
Hyperopia
Astigmatism
All of the above
22. Myopia can be corrected by
Concave lenses
Convex lenses
Cylindrical lenses
All of the above
23. The common refractive disorder(s) is/are
Myopia
Hyperopia
Astigmatism
All of the above
24. Which component(s) play a role in focusing an image onto the retina?
Tear film
Crystalline lens
Internal fluids
All of the above
25. Which of the following is the reduction in magnitude of refractive errors that usually occur in the first five years of life?
Emmetropization
Refractive correction
Visual acuity
Balancing
26. The eye's ability to refract or focus light sharply on the retina is based on the following main anatomical features:
Axial length of an eyeball
Curvature of the cornea
Both and
None of the above
27. Refractive errors of more than which of the following magnitude are generally axial in nature?
1D
2D
3D
4D
28. Causes of astigmatism are
Subluxation/dislocation of anatomical lens
Keratoconus
Lenticonus
All of the above
29. Orthokeratology is the practice of using which of the following types of special contact lenses to flatten the cornea to reduce myopia
Rigid
Soft
Both and
None of the above
30. The amount of hyperopia,which is corrected normally by the normal tone of ciliary muscles, is known as
Latent hyperopia
Manifest hyperopia
Both and
None of the above
True
False
None of the above
Can't say
2. "Emmetropia" has perfect vision with refractive error.
True
False
None of the above
Can't say
3. Diabetic retinopathy is the complication of diabetes that can lead to bleeding into the retina.
True
False
None of the above
Can't say
4. Astigmatism usually occurs when the front surface of the eye, the cornea, has an irregular curvature.
True
False
None of the above
Can't say
5. Low myopia usually describes myopia of -3·00 diopters or less.
True
False
None of the above
Can't say
6. Index myopia is attributed to variation in the index of refraction of one or more of the ocular media.
True
False
None of the above
Can't say
7. A refractive error means that the shape of your eye does not bend light correctly, resulting in a blurred image.
True
False
None of the above,
Can't say
8. Spherical errors occur when the optical power of the eye is too powerful or too weak across one meridian ofthe optics.
True
False
None of the above
Can't say
9. The optic nerve carries signals of light, dark, and colours to the area of the brain.
True
False
None of the above
Can't say
10. Monovision can hinder
Depth perception
Binocular perception
Both and
None of the above
11. Astigmatism in infants generally decreases over the first few years of life and stabilizes by about
One year of age
Five years of age
Eight years of age
Three years of age
12. 0-00/-1.00 cyl x 180°, given prescription is the example of
SMA
SHA
Both and
None of the above
13. Hyper<;>pic children are mostly associated with difficulty in reading and
Squinting
Eye rubbing
Lack of interest in school
All of the above
14. Which type of hyperopia occurs when the length of the eyeball is too short but the power of the refracting components of the eye is normal
Curvatural
Index
Refractive
Axial
15. Hyperopia can cause
Eyestrain
Headaches
Intermittent blurred vision
All of the above
16. Which is/are the primary options to treat the visual symptoms of those with myopia?
Spectacles
Contact lenses
Refractive surgery
All of the above.
17. In myopia refractive power of the eye is too
Strong
Weak.
Both and
None of the above
18. In which of the following types of vision correction is the dominant eye given a distance prescription, while the other eye is given a near prescription
Monovision
Binocular vision
and
None of the above
19. In which of the following types of astigmatism, are the meridians in which the two different curves lie located 180 degrees apart
Regular
Irregular
Both and
None of the above
20. Which of the following type(s) of hyperopia, can be corrected by an effort of accommodation?
Absolute hyperopia
Total hyperopia
Facultative hyperopia
Partial hyperopia
21. Nearsightedness is also known as
Myopia
Hyperopia
Astigmatism
All of the above
22. Myopia can be corrected by
Concave lenses
Convex lenses
Cylindrical lenses
All of the above
23. The common refractive disorder(s) is/are
Myopia
Hyperopia
Astigmatism
All of the above
24. Which component(s) play a role in focusing an image onto the retina?
Tear film
Crystalline lens
Internal fluids
All of the above
25. Which of the following is the reduction in magnitude of refractive errors that usually occur in the first five years of life?
Emmetropization
Refractive correction
Visual acuity
Balancing
26. The eye's ability to refract or focus light sharply on the retina is based on the following main anatomical features:
Axial length of an eyeball
Curvature of the cornea
Both and
None of the above
27. Refractive errors of more than which of the following magnitude are generally axial in nature?
1D
2D
3D
4D
28. Causes of astigmatism are
Subluxation/dislocation of anatomical lens
Keratoconus
Lenticonus
All of the above
29. Orthokeratology is the practice of using which of the following types of special contact lenses to flatten the cornea to reduce myopia
Rigid
Soft
Both and
None of the above
30. The amount of hyperopia,which is corrected normally by the normal tone of ciliary muscles, is known as
Latent hyperopia
Manifest hyperopia
Both and
None of the above
Other Question Papers
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Subjects
- Basic Of Refractive Errors
- Basic Science
- Coating
- Frames
- Ophthalmic Optics
- Optical Counter Management
- Progressive Lens