optometry and Ophthalmology MCQ Part-07

1. Total hypermetropia is

  1. Facultative + absolute
  2. Manifest + Latent✓
  3. Manifest + absolute
  4. Absolute + latent
Total hypermetropia = Manifest (Facultative + absolute) + Latent

2. Primary angle closure glaucoma is a complication of

  1. Myopia
  2. Hypermetropia✓
  3. Astigmatism
  4. Presbyopia

3. Maddox V test is used in diagnosis of

  1. Heterophoria
  2. Heterotropia
  3. Astigmatism✓
  4. Diplopia
Astigmatic fan and block test is also known as Maddox V test and is used in diagnosis of
astigmatism.

4. While doing IOL power calculation, change in _____ affect more on IOL power

A. Axial length✓
B. Keratometry reading
C. A constant
D. Anterior chamber depth

Remember the formula P=A-2.5L-0.9K
  • A is a constant, L is axial length, K is keratometry reading
  • A change in L affect more because it is multiplied by 2.5

5. Distance between near point of convergence and far point of convergence is known as

A. Amplitude of convergence
B. Range of convergence✓
C. Proximal convergence
D. Voluntary convergence

6. During accommodation, radius of curvature of anterior lens surface

A. Increase
B. Decrease✓
C. Remains same
D. None

7. Accommodative esotropia is due to

A. Myopia
B. Hypermetropia✓
C. Astigmatism
D. Presbyopia

8. Parasympathomimetic drugs cause

A. Insufficiency of accommodation
B. Spasm of accommodation✓
C. Total loss of accommodation
D. None

9. As age increase, the amplitude of accommodation

A. Increase
B. Decrease✓
C. Remains same
D. None

10. The convergence is measured in

A. Prism diopter
B. Meter angle
C. Both✓
D. None

Vergence is measured in degrees, prism diopters and meter angle.
MA = 1/(target distance in meters) Meter angles (MA) can be converted into prism diopters simply by multiplying it by the interpupillary distance (IPD) in cm: Prism Diopters = IPD (cm)* MA 
In emmetropia, accommodation needed to see an object is equal to convergence in meter angle for that object distance.

11. Symmetric astigmatism is when

A. The principal meridia in each eye have similar but opposite axes✓
B. The axis is same in both eyes
C. Power and axis are same in both eyes
D. Two principal meridia are at right angles to one another

In symmetrical Astigmatism the angle in both eyes will be 90+x, 90-x form. ie. If one eye axis is 90+10=100° other will be 90-10= 80°. Or simply, adding both axis will get 180° Eg. If RE -1.0x 110° and LE -1.00x 70° it is symmetric.
Practically, Most of oblique Astigmatism is seen symmetrical

12. Consecutive hypermetropia occur when

A. Surgically overcorrected myopia
B. Pseudophakia with under correction
C. Paralysis of accommodation
D. Both A&B✓

Similarly, consecutive myopia occur in surgical over correction of hypermetropia and
pseudophakia with over correction.

13. Functional hypermetropia occur in

A. Aphakia
B. Pseudophakia with under correction
C. Paralysis of accommodation✓
D. Acquired cortical sclerosis

14. 1mm increase in radius of curvature of cornea results in

A. 6D myopia
B. 6D hypermetropia✓
C. 3D myopia
D. 3D hypermetropia

15. If there is associated exoporia, hypermetropia should be

A. Under corrected✓
B. Over corrected
C. Fully corrected
D. None

16. fuchs spots are seen in

A. Hypermetropiea
B. Myopia✓
C. Astigmatism
D. Aphakia

17. In duochrome test red becomes clear when

A. Hypermetropia is fully corrected
B. Hypermetropia is over corrected✓
C. Hypermetropia is under corrected
D. Myopia is over corrected

18. In spectacle prescription, OU represents

A. Right eye
B. Left eye
C. Both eyes✓
D. Any eye

19. False regarding astigmatism:

A. regular astigmatism has the principal meridians at 90° to each other
B. oblique astigmatism occurs when the principal meridians do not lie at 90° to each other✓
C. irregular astigmatism is seen in patients with keratoconus
D. astigmatic image can not be fully corrected with a spherical lens

20. Test not used in diagnosis of astigmatism

A. Astigmatic fan
B. Stenopaec slit
C. Bagolini striated glasses✓
D. Retinoscopy

21. Commonest refractive error is

A. Myopia
B. Hypermetropia
C. Astigmatism✓
D. Presbyopia

22. Eye at birth is

A. Myopic
B. Hypermetropic✓
C. Astigmatic
D. Emmetropic

23. Esotropia may be associated with

A. Myopia
B. Hypermetropia✓
C. Astigmatism
D. Presbyopia

24. Lattice degeneration is seen in:

A. Myopia✓
B. Hypermetropia
C. Astigmatism
D. Presbyopia

25. Roving ring scotoma is seen after correction of Aphakia by

A. Spectacle correction✓
B. Contact lens
C. IOL
D. Both A&B

टिप्पणी पोस्ट करा

0 टिप्पण्या