New Quiz 23 Oct Welcome to your Optometry & Orthoptics Name Email 1. [Smallest diameter of the eyeball is:] Vertical Horizontal Anteroposterior More than 24 mm None . 2. [Commonest cause of vitreous haemorrhage is:] Diabetes Hypertension Trauma Lens extraction None . 3. [In photophthalmia site of lesions is:] Cornea Retina Optic nerve All of the above None . 4. [The distance portion power in a Progressive addition lens should be checked at a point mm above the distance optical center:] 6 mm 4 mm 2 mm 5 mm None . 5. [All of the following signs may be appreciated in a patient with early papilloedema except:] Obscuration of superior, inferior and nasal disc margins Absence of spontaneous venous pulsation Mild hyperaemia of the disc Obliteration of physiological cup of the optic disc None . 6. [A patient with ptosis presents with retraction of ptotic eye lid on chewing. This represents:] Marcus gunn Jaw winking syndrome Third nerve misdirection syndrome Abducent palsy Occulomotor palsy None . 7. [True about fovea centralis:] Cones present Visual acquity lowest Optic nerve passes Rods present Visual acquity highest A and E None . 8. [Vossious ring on the lens occurs in injury:] Direct penetrating Radiation Chemical Concussion None . 9. [Transpose the given prescription into minus cylinder form; —2.50 DS / + 1.75 DC axis 25 *] DS —0.75 / DC-1.75 axis 115 DS —1.00 / DC-1.75 axis 45* DS —0.75 / DC-2.50 AXIS 25 DS —0.75 / DC-1.75 AXIS 125* None . 10. [YAG laser is used in the treatment of:] Retinal detachment Diabetic retinopathy Open-angle glaucoma After cataract None . 11. [Amaurotic cat’s eye reflex is seen in:] Papilloedema Papillitis Retinoblastoma Retinitis pigmentosa None . 12. [The optical axis of the eye meets the retina at a point which:] Coincides with the fovea centralis Is nasal to the fovea centralis Is temporal to the fovea centralis Is nasal to optic disc None . 13. [Brown’s syndrome simulates paresis of:] Inferior oblique Superior oblique Superior rectus Inferior rectus None . 14. [Using PVEP techniques, 6/6 visual acuity is reached by] 3 months — 4 months 1 month — 2 months 8 months —1 year 1.5 — 2 years None . 15. [Treatment of diabetic retinopathy neovascularisation is/are:] Retinal laser photocoagulation Pars plana vitrectomy Phacoemulsion Anti VEGE ab LASIK A and D None . 16. [Diabetic retinopathy is essentially an angiopathy affecting retinal:] Precapillary arterioles Capillaries Venules All of the above None . 17. [All of the following are characteristics of the image formed on direct ophthalmoscopy, except that it is:] Erect Real Fifteen times magnified in emmetropes More magnified in myopes than emmetropes None . 18. [Diameter of the optic disc is:] 1.5 mm 2.5 mm 3.5 mm 5 mm None . 19. [The reading accuracy and ability to recognize letters will not be impaired if the central scotoma is of diameter ] 10 degree 15 degree 20 degree 25 degree None . 20. [The color change in a plastic photochromic lenses are due to the presence of a chemical molecular group called:] Silver halide crystals Indolinospironapthoxazine Oxide materials Magnesium fluoride None . 21. [Diameter of an adult crystalline lens is:] 5–6 mm 7–8 mm 9–10 mm 11–12 mm None . 22. [Blow-out fracture of orbit is characterized by all except:] Diplopia ‘Tear drop” sign Positive forced duction test Exophthalmos None . 23. [Common feature between sympathetic ophthalmitis and Vogt-Kanayagi-Harada syndrome:] Autoimmune etiology Injury Uveitis Vitiligo A and C None . 24. [The canal of Schlemm possesses the following anatomic characteristics except:] Contains red cells Contains aqueous Lined by endothelium Contains partitions resembling the dural venous sinuses None . 25. [People employed in occupations like radiology, nuclear physics, uranium mining can be at risk from:] Non ionizing radiation Ionizing radiation Ultra violet radiation Visible light None . Time's up
