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


Other Question Papers

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Subjects

  • Basic Of Refractive Errors
  • Basic Science
  • Coating
  • Frames
  • Ophthalmic Optics
  • Optical Counter Management
  • Progressive Lens