NCLE Practical Questions with Accurate
Answers 2023 Graded A+
adnexa - extraocular structures of the eye which include the eyelids, the orbit, lacrimal
glands
anterior chamber - the area bounded in front by the cornea and in the back by the lens
and filled with aqueous
aqueous - a clear, watery solution in the anterior and posterior chambers
artery - the vessel supplying blood to the eye
canal of schlemm - the passageway for the aqueous fluid to leave the eye
choroid - carries blood vessels and is the inner coat between the sclera and the retina
ciliary body - unseen part of the iris, together with the ora serrata form the uveal tract
conjunctiva - a clear membrane covering the white of the eye
cornea - a clear transparent portion of the outer coat of the eyeball through which light
passes to the lens
iris - provides eye colors and functions like the aperture on a camera enlarging in dim
light and contracting in bright light
lens - helps to focus light on the retina
macula - a small area on the retina provides our most central acute vision
optic nerve - conducts visual impulses to the brain from the retina
posterior chamber - located behind the iris and in front of the lens filled with the
aqueous
pupil - opening, aperture of the iris
rectus medialis - one of the six extra ocular muscles of the eye
retina - the innermost coat of the back of the eye. formed of the light sensitive nerve
endings that carry the visual impulse to the optic nerve.
, sclera - white of the eye, hard protective part
vein - the vessel that carries blood away from the eye
vitreous - The transparent, colorless mass of soft, gelatinous material filling the eyeball
behind the lens.
refractive index of the cornea - 1.376
making the refractive power +48.75
aqueous has a refractive index of -5.75
making the total power +43.00
HVID - horizontal visible iris diameter
measurement of the cornea
11 to 12 mm
VVID - vertical visible iris diameter
9 to 11mm
TBUT - tear break up time, the interval between blinks and no corneal drying takes
place
lacrimal lake - is the pool of tears in the lower conjunctival cul-de-sac, which drains into
the opening of the tear drainage system (the puncta lacrimalia). The volume has been
estimated to be between 7 and 10 μL (micro-liter)
also known as tear lake, tear prism, and tear meniscus
frontalis muscle - allows the eyelid to droop or sag
reflex tears - produced by the lacrimal glands and are generally caused by stimulus
such as coughing, sneezing, strong smells, emotions
Basic Tear secretion - produced by glands of wolfring and glands of krause
lipid layer - layer of the tear film that is responsible for prevention of evaporation
aqueous layer - layer fo the tear film that contains the nutrients and antibiotic properties
mucin layer - the layer of the tear film that is responsible for holding the tears on the
cornea
goblet cells - produce mucus
outer tunic - is fibrous and consists of the sclera, cornea, and limbus
middle tunic - is vascular and consists of the sclera and retina
Answers 2023 Graded A+
adnexa - extraocular structures of the eye which include the eyelids, the orbit, lacrimal
glands
anterior chamber - the area bounded in front by the cornea and in the back by the lens
and filled with aqueous
aqueous - a clear, watery solution in the anterior and posterior chambers
artery - the vessel supplying blood to the eye
canal of schlemm - the passageway for the aqueous fluid to leave the eye
choroid - carries blood vessels and is the inner coat between the sclera and the retina
ciliary body - unseen part of the iris, together with the ora serrata form the uveal tract
conjunctiva - a clear membrane covering the white of the eye
cornea - a clear transparent portion of the outer coat of the eyeball through which light
passes to the lens
iris - provides eye colors and functions like the aperture on a camera enlarging in dim
light and contracting in bright light
lens - helps to focus light on the retina
macula - a small area on the retina provides our most central acute vision
optic nerve - conducts visual impulses to the brain from the retina
posterior chamber - located behind the iris and in front of the lens filled with the
aqueous
pupil - opening, aperture of the iris
rectus medialis - one of the six extra ocular muscles of the eye
retina - the innermost coat of the back of the eye. formed of the light sensitive nerve
endings that carry the visual impulse to the optic nerve.
, sclera - white of the eye, hard protective part
vein - the vessel that carries blood away from the eye
vitreous - The transparent, colorless mass of soft, gelatinous material filling the eyeball
behind the lens.
refractive index of the cornea - 1.376
making the refractive power +48.75
aqueous has a refractive index of -5.75
making the total power +43.00
HVID - horizontal visible iris diameter
measurement of the cornea
11 to 12 mm
VVID - vertical visible iris diameter
9 to 11mm
TBUT - tear break up time, the interval between blinks and no corneal drying takes
place
lacrimal lake - is the pool of tears in the lower conjunctival cul-de-sac, which drains into
the opening of the tear drainage system (the puncta lacrimalia). The volume has been
estimated to be between 7 and 10 μL (micro-liter)
also known as tear lake, tear prism, and tear meniscus
frontalis muscle - allows the eyelid to droop or sag
reflex tears - produced by the lacrimal glands and are generally caused by stimulus
such as coughing, sneezing, strong smells, emotions
Basic Tear secretion - produced by glands of wolfring and glands of krause
lipid layer - layer of the tear film that is responsible for prevention of evaporation
aqueous layer - layer fo the tear film that contains the nutrients and antibiotic properties
mucin layer - the layer of the tear film that is responsible for holding the tears on the
cornea
goblet cells - produce mucus
outer tunic - is fibrous and consists of the sclera, cornea, and limbus
middle tunic - is vascular and consists of the sclera and retina
