World Optometry Day Quiz - 2024

The most common muscle affected in thyroid ophthalmopathy?

• A SO
• B MR
• C IR
• D IO

The unit of measurement of convergence

• A Arc Meter
• B Meter Angle
• C Meter Diopter
• D Radian Diopter

10 years old boy Wahid was having drooping of eye lid.One day his parents noticed inward deviation of eyes .What will be the condition

• A Consecutive esotropia
• B Sensory esotropia
• C Microtropia
• D Accommodative esotropia

A bluish mass is noted inferior to the medial canthal angle in ...............................

• A Congenital Lacrimal Fistula
• B Atresia of the Lacrimal Puncta
• C Dacryocele
• D All of the above

A face without expressions seen in .........

• A Moebius syndrome
• B Brown's syndrome
• C Parinaud Syndrome
• D None of them

A patient can read 6/6 line with +2.50D.However patient can tolerate up to +4.00D with out getting blurred the BCVA.Cyclo acceptance is +5.00D.Find facultative hypermetropia?

• A 1.5D
• B 4D
• C 1D
• D 5 D

Accommodative demand for a hypermetrope is less in contact lens than spectacle

• A True
• B False
• C None
• D None

All are correct except

• A Stand magnifiers consist of a convex lens.
• B Stand magnifiers do not achieve maximum magnification from the power of their lenses.
• C Movement of a magnifier during use is referred to as scanning.
• D The lens of a stand magnifier provides enough diverging power to counteract some of the convergence.

Anti smudge coating is ---- in nature

• A Hydrophobic
• B Hydrophilic
• C Oleophilic
• D Oleophobic

Choose the correct statement

• A The amount of polarization in the reflected beam depends on the angle of incident
• B The amount of polarization in the reflected beam depends on the angle of refraction
• C The amount of polarization in the reflected beam depends on the refractive index of surface
• D The amount of polarization in the reflected beam depends on the wavelength of the incident ray

Complete absence of colorants is required to make -------

• A Brown tint
• B Amber tint
• C Clear white lens
• D Green tint

Crowding phenomenon occurs in children with …..?

• A Decreased vision
• B Strabismus
• C Amblyopia
• D None of the above

Which of the following corneal conditions is autosomal recessive?

• A Macular corneal dystrophy
• B Granular corneal dystrophy
• C Meesmann’s corneal dystrophy
• D Fuchs’ corneal endothelial dystrophy

The corneal tissue would not be worth for corneal transplantation,if endothelial count is below

• A 1000 cells/mm2
• B 1500 cells/mm2
• C 2500 cells/mm2
• D 2000 cells/mm2

If the patient could read N 20 at a standard distance of 25 cms and wanted to read N 5 print, then the magnification required is .........

• A 5 X
• B 3 X
• C 2 X
• D 4 X

In paralytic squint, the difference between primary and secondary deviation in the gaze of direction of the paralytic muscle

• A Increases
• B Decreases
• C Remains the same
• D none of the above

Lid lag of the upper eyelid on downward gaze is ……………….

• A Gifford’s sign
• B Von graffe’s sign
• C Stellwag’s sign
• D Enroth’s sign

Maximum ability to relax accommodation by maintaining BSV is called

• A PRA
• B NRA
• C NFV
• D PFV

In orbital trauma the bone most likely to be damaged is

• A Lateral Zygomatic Bone
• B Orbital floor of maxillary
• C Nasal
• D Ethmoid

Magnitude of tropia can be found by

• A Cover test
• B Alternate cover test
• C Prism cover test
• D Cover uncover test

Oxygen permeability is the

• A Intrinsic ability to transport oxygen
• B Extrinsic ability to transport oxygen
• C Abilty to increases the water content
• D Ability to decreases the water content

Patient fitted with an RGP lens with power -1.00/-0.75*180 .If rotated 20 degree to left,What will be the final power ?

• A -1.00/-0.75*160
• B -1.00/-0.75*20
• C -1.00/-1.00*180
• D -1.25/-0.75*180

Pure ----------- is a hypoallergenic metal.

• A Flexon
• B Titanium
• C Both a and b
• D None of the above

Rigid lenses will maintain a

• A low modulus of elasticity
• B Meduim modulus of elasticity
• C High modulus of elasticity
• D None of the above

In goldmann tonometry, 4D of corneal astigmatism bring about the change in IOP error by

• A 1 mm of Hg
• B 2 mm of Hg
• C 3 mm of Hg
• D 4 mm of Hg

Thyroid myopathy can give rise to

• A Exotropia
• B Esotropia
• C None of these
• D Any squint

What is the tube length of telescope when the ocular lens is -75.00 D and objective lens is +30.00D?

• A 1.33 cm
• B 2.00 cm
• C 3.33 cm
• D 4.00 cm

Which color of lens tint has the most even transmission throughout the entire visible spectrum?

• A Pink
• B Brown
• C Green
• D Gray

Which of the following conditions is the most likely to occur following a corneal abrasion?

• A Epithelial basement membrane dystrophy
• B Corneal hydrops
• C Keratoconus
• D Recurrent erosion

……….. is the mineral that delivers Vitamin A from your liver to your retina?

• A Calcuim
• B Iron
• C Zinc
• D Potassium