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Latest DHFWS Nadia Specialist Medical Officer Ophthalmology Polyclinic Exam Question (Objective Questions), MCQ in English
Subjects : Ophthalmology
Question Bank DHFWS Nadia Specialist Medical Officer (Ophthalmology) Polyclinic Exam - English
Which of the following bones does not contribute to the bony orbit?
A.Frontal bone
B.Maxillary bone
C.Nasal bone
D.Zygomatic bone
Q 2 :
The roof of the orbit is primarily formed by which bone?
A.Maxillary bone
B.Ethmoid bone
C.Frontal bone
D.Sphenoid bone
Q 3 :
The medial wall of the orbit is mainly composed of which bone?
A.Zygomatic bone
B.Lacrimal bone
C.Maxillary bone
D.Temporal bone
Q 4 :
The inferior orbital fissure is located between which two bones?
A.Frontal and ethmoid
B.Maxillary and zygomatic
C.Sphenoid and lacrimal
D.Palatine and frontal
Q 5 :
Which nerve passes through the optic canal?
A.Oculomotor nerve (III)
B.Trochlear nerve (IV)
C.Optic nerve (II)
D.Abducens nerve (VI)
Q 6 :
Which of the following muscles is not an extraocular muscle?
A.Superior rectus
B.Inferior oblique
C.Levator palpebrae superioris
D.Orbicularis oculi
Q 7 :
The primary action of the superior oblique muscle is:
A.Adduction and elevation
B.Abduction and depression
C.Intorsion and depression
D.Extorsion and elevation
Q 8 :
Which cranial nerve innervates the lateral rectus muscle?
A.III
B.IV
C.VI
D.VII
Q 9 :
The conjunctiva is best described as:
A.Stratified squamous epithelium covering the cornea
B.Simple cuboidal epithelium lining the eyelids
C.Mucous membrane lining the eyelids and covering the anterior sclera
D.Keratinized epithelium of the skin around the eye
Q 10 :
Which layer of the cornea is composed of collagen fibrils arranged in a highly regular manner, contributing to its transparency?
A.Epithelium
B.Bowman's layer
C.Stroma
D.Descemet's membrane
Q 11 :
The innermost layer of the cornea is:
A.Bowman's layer
B.Stroma
C.Descemet's membrane
D.Endothelium
Q 12 :
The lens is suspended within the eye by:
A.The iris
B.The ciliary body and zonular fibers
C.The choroid
D.The retina
Q 13 :
Accommodation, the process of focusing on near objects, is primarily achieved by changes in the shape of the:
A.Cornea
B.Iris
C.Lens
D.Pupil
Q 14 :
The anterior chamber of the eye is filled with:
A.Vitreous humor
B.Aqueous humor
C.Blood
D.Lymph
Q 15 :
The drainage of aqueous humor primarily occurs through the:
A.Central retinal artery
B.Canal of Schlemm
C.Vitreous cavity
D.Optic nerve head
Q 16 :
The iris controls the amount of light entering the eye by regulating the size of the:
A.Cornea
B.Lens
C.Pupil
D.Sclera
Q 17 :
The vascular layer of the eye located between the sclera and the retina is the:
A.Iris
B.Ciliary body
C.Choroid
D.Conjunctiva
Q 18 :
Which layer of the retina contains the photoreceptor cells (rods and cones)?
A.Inner limiting membrane
B.Ganglion cell layer
C.Outer nuclear layer
D.Inner plexiform layer
Q 19 :
Rod photoreceptor cells are primarily responsible for:
A.Color vision
B.Sharp, detailed vision
C.Vision in low light conditions
D.Central vision
Q 20 :
Cone photoreceptor cells are primarily responsible for:
A.Peripheral vision
B.Night vision
C.Color vision and visual acuity
D.Movement detection
Q 21 :
The area of the retina responsible for the sharpest central vision is the:
A.Optic disc
B.Peripheral retina
C.Macula lutea
D.Ora serrata
Q 22 :
The fovea centralis is located within the:
A.Optic disc
B.Peripheral retina
C.Macula lutea
D.Ora serrata
Q 23 :
The optic disc is also known as the:
A.Yellow spot
B.Blind spot
C.Central fovea
D.Ciliary body
Q 24 :
The vitreous cavity of the eye is filled with:
A.Aqueous humor
B.Vitreous humor
C.Blood
D.Lymph
Q 25 :
The outermost fibrous layer of the eye is the:
A.Choroid
B.Retina
C.Sclera
D.Iris
Q 26 :
The limbus is the junction between the:
A.Iris and pupil
B.Cornea and sclera
C.Anterior and posterior chambers
D.Retina and choroid
Q 27 :
The glands of Zeis are associated with the:
A.Conjunctiva
B.Cornea
C.Eyelashes
D.Lacrimal gland
Q 28 :
The meibomian glands secrete:
A.Aqueous component of tears
B.Mucous component of tears
C.Oily component of tears
D.Lysozyme
Q 29 :
The embryological origin of the lens is:
A.Surface ectoderm
B.Neural crest
C.Mesoderm
D.Neural tube
Q 30 :
The retina develops from the:
A.Surface ectoderm
B.Neural crest
C.Mesoderm
D.Optic cup, derived from the neural tube
Q 31 :
The cornea develops from the:
A.Surface ectoderm and neural crest
B.Neural tube only
C.Mesoderm only
D.Surface ectoderm only
Q 32 :
The sclera and choroid are derived from the:
A.Surface ectoderm
B.Neural crest
C.Mesoderm
D.Neural tube
Q 33 :
The extraocular muscles develop from the:
A.Surface ectoderm
B.Neural crest
C.Mesoderm
D.Neural tube
Q 34 :
The lacrimal gland originates from the:
A.Surface ectoderm
B.Neural crest
C.Mesoderm
D.Neural tube
Q 35 :
The optic vesicle is an outgrowth of the:
A.Forebrain (diencephalon)
B.Midbrain (mesencephalon)
C.Hindbrain (rhombencephalon)
D.Spinal cord
Q 36 :
The optic cup forms during which stage of eye development?
A.Formation of the optic vesicle
B.Invagination of the optic vesicle
C.Closure of the neural tube
D.Differentiation of the lens placode
Q 37 :
The hyaloid artery supplies nutrients to the developing:
A.Cornea
B.Lens and vitreous
C.Retina
D.Sclera
Q 38 :
Remnants of the hyaloid artery may persist as:
A.Coloboma
B.Persistent pupillary membrane
C.Mittendorf dot
D.Aniridia
Q 39 :
The lens placode is a thickening of the:
A.Neural ectoderm
B.Surface ectoderm
C.Mesoderm
D.Neural crest
Q 40 :
The process of the lens placode invaginating to form the lens vesicle occurs around which gestational week?
A.2nd week
B.4th week
C.6th week
D.8th week
Q 41 :
Failure of complete fusion of the choroidal fissure can result in:
A.Cataract
B.Glaucoma
C.Coloboma
D.Retinoblastoma
Q 42 :
The development of the iris and ciliary body involves contributions from the:
A.Surface ectoderm only
B.Neural crest and mesoderm
C.Neural tube only
D.Mesoderm and surface ectoderm
Q 43 :
The sensory layer of the retina differentiates from the:
A.Inner layer of the optic cup
B.Outer layer of the optic cup
C.Lens vesicle
D.Hyaloid artery
Q 44 :
The retinal pigment epithelium (RPE) develops from the:
A.Inner layer of the optic cup
B.Outer layer of the optic cup
C.Lens vesicle
D.Hyaloid artery
Q 45 :
The formation of the optic nerve occurs due to the outgrowth of axons from the:
A.Photoreceptor cells
B.Bipolar cells
C.Ganglion cells
D.Amacrine cells
Q 46 :
The myelination of the optic nerve fibers begins:
A.At the retina
B.Behind the lamina cribrosa
C.Within the optic canal
D.Near the optic chiasm
Q 47 :
The development of the eyelids involves folds of the:
A.Conjunctiva only
B.Skin and underlying mesenchyme
C.Cornea and sclera
D.Retina and choroid
Q 48 :
The puncta, canaliculi, and nasolacrimal duct develop from a groove in the:
A.Eyelid margin
B.Conjunctiva
C.Nasal placode
D.Frontal bone
Q 49 :
The vitreous humor is primarily composed of:
A.Water and glucose
B.Water and collagen
C.Water and hyaluronic acid
D.Water and electrolytes
Q 50 :
The primary function of the cornea is:
A.To control the amount of light entering the eye
B.To focus light onto the retina
C.To provide nourishment to the lens
D.To protect the inner structures of the eye
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