NCLE Practical Questions and Answers
3 & 9 o' clock staining - ANSWER-cornea is drying out, inadequate tear film
How to fix: adjust diameter or periphery, thinner lens design
Abrasion - ANSWER-Fit of lens that is too flat. Foreign body gets trapped under lens.
Eye Patch overnight.
Acanthamoeba - ANSWER-extremely serious infection. caused by a parasite in water.
very painful, red eye that does not respond to conventional treatment.
adnexa - ANSWER-extraocular structures of the eye which include the eyelids, the orbit,
lacrimal glands
Aniridia - ANSWER-absence of an iris
anterior chamber - ANSWER-the area bounded in front by the cornea and in the back
by the lens and filled with aqueous
aqueous - ANSWER-a clear, watery solution in the anterior and posterior chambers
aqueous layer - ANSWER-layer fo the tear film that contains the nutrients and antibiotic
properties
Arcuate Staining - ANSWER-How tight is this lens edges? check to see if it is properly
blended or finished. send back for further polishing/redgeing. reconsider diameter or
optic zone sizes
Crescent shaped stain from improper insertion, rough edge of contact lens or improper
recentering of contact lens
artery - ANSWER-the vessel supplying blood to the eye
Basic Tear secretion - ANSWER-produced by glands of wolfring and glands of krause
blepharitis - ANSWER-inflammation of the glands and eyelash follicles along the margin
of the eyelids
Bowman's alyer - ANSWER-second layer of the cornea, will form scar tissue if damaged
bullous keratopathy - ANSWER-corneal edema with painful blisters in the epithelium
due to corneal endothelial dysfunction
canal of schlemm - ANSWER-the passageway for the aqueous fluid to leave the eye
Central Staining - ANSWER-Common: Corneal Edema
, Lens material, increase DK or move to a thinner lens design
choroid - ANSWER-carries blood vessels and is the inner coat between the sclera and
the retina
ciliary body - ANSWER-unseen part of the iris, together with the ora serrata form the
uveal tract
clear lens replacement - ANSWER-patients over 40, like cataract removal, remove
crystalline liens and replace with intraocular lens implant
coloboma - ANSWER-conditions where normal tissue in or around the eye is missing at
birth
conjunctiva - ANSWER-a clear membrane covering the white of the eye
Conjunctivitis - ANSWER-inflammation of the conjunctiva
cornea - ANSWER-a clear transparent portion of the outer coat of the eyeball through
which light passes to the lens
Corneal Dystrophy - ANSWER-group of genetic, often progressive, eye disorders in
which abnormal material often accumulates in the clear (transparent) outer layer of the
eye (cornea).
corneal edema - ANSWER-When water is retained and swelling occurs in the cornea.
Corneal Infiltrates & ulcers - ANSWER-A discrete collection of inflammatory cells in the
cornea
corneal scarring - ANSWER-Superficial grayish opacity on the cornea which is usually
the result of an old injury or infection of the cornea.
corneal topography - ANSWER-Map of the variations of curvature in the cornea; like a
geographical relief map of the cornea
A device that records the surface terrain of the cornea, used to detect aberrations of the
contour, as well as regular and irregular astigmatism.
crystalline lens - ANSWER-refraction of 1.42 (12-15 diopters)
transparent avascular body between the vitreous and the back of the iris
capable of changing its shape from the ciliary muscle
Diffuse Illumination - ANSWER-widest slit w/longest aperture
used to view overall areas
ocular adnexa, cornea, sclera, lids, conjunctiva, lens surface
lens fitting characteristics
3 & 9 o' clock staining - ANSWER-cornea is drying out, inadequate tear film
How to fix: adjust diameter or periphery, thinner lens design
Abrasion - ANSWER-Fit of lens that is too flat. Foreign body gets trapped under lens.
Eye Patch overnight.
Acanthamoeba - ANSWER-extremely serious infection. caused by a parasite in water.
very painful, red eye that does not respond to conventional treatment.
adnexa - ANSWER-extraocular structures of the eye which include the eyelids, the orbit,
lacrimal glands
Aniridia - ANSWER-absence of an iris
anterior chamber - ANSWER-the area bounded in front by the cornea and in the back
by the lens and filled with aqueous
aqueous - ANSWER-a clear, watery solution in the anterior and posterior chambers
aqueous layer - ANSWER-layer fo the tear film that contains the nutrients and antibiotic
properties
Arcuate Staining - ANSWER-How tight is this lens edges? check to see if it is properly
blended or finished. send back for further polishing/redgeing. reconsider diameter or
optic zone sizes
Crescent shaped stain from improper insertion, rough edge of contact lens or improper
recentering of contact lens
artery - ANSWER-the vessel supplying blood to the eye
Basic Tear secretion - ANSWER-produced by glands of wolfring and glands of krause
blepharitis - ANSWER-inflammation of the glands and eyelash follicles along the margin
of the eyelids
Bowman's alyer - ANSWER-second layer of the cornea, will form scar tissue if damaged
bullous keratopathy - ANSWER-corneal edema with painful blisters in the epithelium
due to corneal endothelial dysfunction
canal of schlemm - ANSWER-the passageway for the aqueous fluid to leave the eye
Central Staining - ANSWER-Common: Corneal Edema
, Lens material, increase DK or move to a thinner lens design
choroid - ANSWER-carries blood vessels and is the inner coat between the sclera and
the retina
ciliary body - ANSWER-unseen part of the iris, together with the ora serrata form the
uveal tract
clear lens replacement - ANSWER-patients over 40, like cataract removal, remove
crystalline liens and replace with intraocular lens implant
coloboma - ANSWER-conditions where normal tissue in or around the eye is missing at
birth
conjunctiva - ANSWER-a clear membrane covering the white of the eye
Conjunctivitis - ANSWER-inflammation of the conjunctiva
cornea - ANSWER-a clear transparent portion of the outer coat of the eyeball through
which light passes to the lens
Corneal Dystrophy - ANSWER-group of genetic, often progressive, eye disorders in
which abnormal material often accumulates in the clear (transparent) outer layer of the
eye (cornea).
corneal edema - ANSWER-When water is retained and swelling occurs in the cornea.
Corneal Infiltrates & ulcers - ANSWER-A discrete collection of inflammatory cells in the
cornea
corneal scarring - ANSWER-Superficial grayish opacity on the cornea which is usually
the result of an old injury or infection of the cornea.
corneal topography - ANSWER-Map of the variations of curvature in the cornea; like a
geographical relief map of the cornea
A device that records the surface terrain of the cornea, used to detect aberrations of the
contour, as well as regular and irregular astigmatism.
crystalline lens - ANSWER-refraction of 1.42 (12-15 diopters)
transparent avascular body between the vitreous and the back of the iris
capable of changing its shape from the ciliary muscle
Diffuse Illumination - ANSWER-widest slit w/longest aperture
used to view overall areas
ocular adnexa, cornea, sclera, lids, conjunctiva, lens surface
lens fitting characteristics
