COA Exam

A lens with a focal length of 2 meter has a power of A) 0.5 D B) 1 D C) 2 D D) 5 D

A) 0.5 D D=1/f

What is the reading portion of a bifocal prescription called? A) addition B) sphere C) cylinder D) Axis

A) Addition

What is an important question to ask a patient that complains of a "red eye"? A) Do you have blurred vision? B) Do you see flashing lights? C) Do you wear glasses? D) Do you see floaters?

A) Do you have blurred vision?

Which part of patient examination is performed by asking specific questions in an orderly sequence? A) History B) Diagnosis C) Measurement D) Assessment

A) History

What process best describes the patient participation in their own treatment? A) informed consent B) discussions with family members C) disclosure D) confidentiality

A) Informed consent

When a patient complains of diplopia, why is it important to ask if the second image goes away after closing one eye? A) to determine the type of diplopia the patient is experiencing. B) to see if the patient is making up the complaint C) to determine which eye is experiencing diplopia D) the question is irrelevant and has no bearing on the patients history of diplopia

A) To determine the type of diplopia the patients experiencing.

If the amount of light information transmitted to the brain from one eye differs from that of the other eye, the patient has a(n) A) afferent pupillary defect B) Adies pupil C) tonic pupil D) third nerve palsy

A) afferent pupillary defect

The term used to refer to symptoms due to uncorrected refractive error is A) ametropia. B) asthenopia. C) esotropia. D) anisometropia.

A) ametropia

The fluid between the cornea and the iris is A) aqueous humor B) vitreous humor C) choroid humor D) ciliary humor

A) aqueous humor

Surgical instruments should not be cared for with use of A) corrosive chemicals B) cavitation C) germicides D) lubrication

A) caivitation

The triangular corners where the upper and lower eyelids meet are called A) canthi B) palpebrae C) puncti D) plica

A) canthi

Which instrument is used in chalazion surgery? A) clamp B) dilator C) forceps D) needle

A) clamp

Which eye drop paralyzes accommodation and therapy allows all of the hyperopia to be uncovered? A) cycloplegic B) anesthetic C) miotic D) mydriatic

A) cycloplegic

Drugs that dilate the pupil w/o cycloplegia operate by stimulating which iris muscle? A) dilator B) sphincter C) ciliary D) rectus

A) dilato

Routine maintenance on a phoropter should not include A) gently wiping off all exposed phoropter parts with alcohol B) protecting the phoropter with a dust cover when not in use C) cleaning the back lenses of a photopter with glass cleaner D) cleaning off dust on enclosed lenses with an ear syringe

A) gently wiping off all exposed phoropter parts with alcohol

A disadvantage of chemical based contact lens care systems is A) irritated B) simplicity of use C) poor disinfection D) low replacement rate

A) irritation

Which of the following is the correct direction for aqueous humor flow? A) Trabecular meshwork; anterior chamber; ciliary body; canal of schlemm B) Trabecular meshwork; canal of sclemm; ciliary body; anterior chamber C) Ciliary body; anterior chamber; trabecular meshwork; canal of schlemm D) Ciliary body; canal of schlemm; trabecular meshwork; anterior chamber

C) Ciliary body; anterior chamber; trabecular meshwork; canal of schlemm

The permeability of a contact lens is denoted by which value? A) RGP B) PMMA C) DK D) GPC

C) DK

Which of the following most qualifies as a chief complaint? A) Current medications B)Munsons sign C) Eye fatigue D) Exophoria

C) Eye fatigue

Which of the following symptoms requires prompt attention? A) Diplopia B) Pain in the eye C) Halos around lights D) Sudden loss of vision

C) Halos around lights

Which tool is a series of red cylinders to assess phoria? A) Worth four-dot B) Ishihara plate C) Maddox rod D) Marcus Gunn

C) Maddox Rod

What is one of the slowest progressing types of glaucoma? A) congenital B) Angle closure C) open angle D) Lens dislocation

C) Open Angle

Prostaglandin drops cause all of the following with the exception of A) increased iris pigmentation B) eyelash growth C) sjogren's syndrome D) conjunctival hyperemia

C) Sjogren's Syndrome

Of the following conditions, which one is least likely to cause transient loss of vision? A) Papilledema B) Carotid artery disease C) Thyroid disorder D) Migraine

C) Thyroid disorder

The concentration of a chemical in a pharmaceutical solution os also called A) stability B)sterility C) tonicity D) toxicity

C) Tonicity

A common medium used to culture microorganisms is A) plasma B) water C) agar D) stain

C) agar

When the pupils are of the unequal size it is called A) amblyopia B) ammetropia C) anisocoria D) anisometropia

C) anisocoria

Which history taking category would not typically be pertinant when interviewing a pt with a chief complaint of headaches? A) Duration B) Cause C) Date D) Ethnicity

D) Ethnicity

Which item is not a designation of a version? A) levoversion B) sursumversion C) dextroversion D) intraversion

D) Intraversion

Which test uses prisms to center the corneal reflex? A) Hess B) Worth four-dot C) Hirschberg D) Krimsky

D) Krimsky

Which eye condition is characterized by two clinical types, wet and dry? A) Glaucoma B) Cataracts C) Retinitis Pigmentosa D) Macular Degeneration

D) Macular degeneration

Glaucoma primarily affects which ocular structure? A) Cornea B) Iris C) Zonules D) Optic Nerve

D) Optic nerve

Which eye care personnel specialize in fitting spectacles? A) orthopedist B) orthodontist C) orthoptist D) optician

D) Optician

Which of the following is incorrect regarding the Maddox rod test? A) The test can be used to measure vertical phorias at distance B) The test can be used to measure vertical phorias at near C) The test can be used to measure both vertical and horizontal phorias at distance and near D) The test cannot be used to measure booth vertical and horizontal phorias at distance and near

D) The test cannot be used to measure both vertical and horizontal phorias at distance and near.

The drug that treats glaucoma by decreasing aqueous humor production is A) cyclopentolate B) tropicamide C) latanoprost D) tomolol maleate

D) Timolol Maleate

The primary role and responsibility of ophthalmic medical personnel is the A) collection of data and the performance of clinical evaluations as authorized by the supervising licensed clinician B) special testing, diagnosing and the treatment of patient C) measuring visual acuity and taking the patients medical history D) following of physician instructions no matter what the task

A) collection of data and the performance of clinical evaluations as authorized by the supervising licensed clinician

Small yellowish-white lesions located between the retinal pigment epithelium and Bruch's membrane are known as A) drusen B) detachments C) dermoids D) dellen

A) drusen

Probing of the tear duct may be useful treatment for patients with A) apiphoria B) epicanthus C) exophoria D) episcleritis

A) epiphoria

Drugs that dilate the pupils are called A) mydriatics B) miotics C) beta-blockers D) anesthetics

A) mydriatics

Soft contact lenses are susceptible to deposits of A) proteins B) enzymes C) surfactants D) leukocytes

A) proteins

The measurement used to determine the distance between the optical centers of spectacle lenses is the A) pupillary distance B) axial length C) vertex distance D) refractive errors

A) pupillary distance

Which test compares the direct and consensual response to the pupil? A) swinging flashlight B) worth four dot C) pinhole disk D) cover-uncover

A) swinging flashlight

The amoric environment in the operating room is created by all steps below with exception of the A) use of powdered gloves B) use of lint free drapes C) rinsing of instruments after use with saline D) use of milipore filters

A) use of powdered gloves

An important difference between soft and rigid lenses is that soft contact lenses are A) usually more comfortable B) closely fit to the shape of the cornea C) more durable D) less susceptable to spectacle blur

A) usually more comfortable

In keratometry, if the power of the vertical meridian is greater than the power of the horizontal meridian, the patient has A) with-the-rule astigmatism B) against-the-rule astigmatism C) keratoconus D) nystagmus

A) with-the-rule astigmatism

An allergic solution has a pH greater than A) 5 B) 7 C) 9 D) 11

B) 7

Which drug is a powerful mydriatic and cycloplegic that can take up two weeks to wear off A) hometropine B) Atropine C) tropicamide D) phenylephrine

B) Atropine

The use of topical steroids may induce which of the following? A) Retinal detachment B) cataracts C) keratoconus D) hyphema

B) Cataracts

In general, which types of allergies should be discussed with the patient? A) medications and contact allergies B) Drugs, inhalants (dust, pollen), contactants (cosmetics, woolens), ingestants (foods), injections (tetanus) C) foods, meds, contactants D) Ingestants, inhalants, and injections

B) Drugs, inhalants, contactants, ingestants and injections

Which common familial ocular disorder should you recored during a patients history? A) Scoliosis B) Keratoconus C) Hemophilia D) Cholesteremia

B) Keratoconus

Which process is useful for measuring corneal astigmatism? A) lensometry B) keratometry C) tonometry D) biometry

B) Keratometry

Which eye care professionals specialize in measurement of eye movement and the extra ocular muscles? A) Orthodontist B) Orthoptist C) Optician D) Orthopedist

B) Orthoptist

The optical centers of spectacle lenses must be properly aligned in order to avoid what effect? A) astigmatism B) prismatic C) presbyopic D) myopic

B) Prismatic

Iridotomy is used to treat what type or condition? A) Open angle glaucoma B) Pupillary block C) congenital glaucoma D) pigmentary glaucoma

B) Pupillary Block

Binocular double vision is always caused by A) a cataract B) a weak or paralyzed extra ocular muscle C) aniseikonia D) Nystagmus

B) a weak or paralyzed extra ocular muscle

To provide informed consent, patient must A) accept the doctors recommendations B) comprehend the doctors recommendations C) disagree with the doctors recommendations D) challenge the doctors recommendtions

B) comprehend the doctors recommendations

The function of a tear film is to A) reduce oxygen to the cornea B) hydrate and protect the ocular surface C) increase friction and blinking D) increase wast and cell debris

B) hydrate and protect the ocular surface

The dioptic power of the cornea is determined by A) ultrasound readings B) keratometer readings C) tonometer readings D) tomography readings

B) keratometer readings

The instrument that measures the power of spectacle leses is the A) distometer B) lensmeter C) tonometer D) ophthalmometer

B) lensmeter

The state of pupillary constriction is known as A) mydriasis B) miosis C) cycloplegia D) anisocoria

B) miosis

The proper technique to assist the visually impaired patient is to A) Guide the visually impaired person to the wall B) place their hand on your arm at the elbow C) assist the person into a wheelchair D) to take their hand

B) place their hand on your arm at the elbow

A patient has had cataract surgery with intraocular lens implantation. This patient is now A) aphakc B) pseudophakic C) phakic D) lenticular

B) pseudophakia

A drooping of the upper eyelid is known as A) pterygium B) ptosis C) epicanthus D) ectropion

B) ptosis

The second step in preparing absorbable sutures before loading on a needle holder is A) cutting the suture in half B) rinsing the suture C) drying the suture DD) informing the physician that the suture is being prepared to load

B) rinsing the suture

Degerming of the hands is known as A) cleaning B) scrubbing C) sterilization D) septicizing

B) scrubbing

After introduction to the patient, one of the first items that should be obtained as a part of history taking is A) medications & dosage that the patient is currently taking B) the chief complaint or reason for the patients visit C) the patients allergy history D) the patients family medical history

B) the chiefs complaint or reason for the patients visit

The opthalmologist instructs that a patient is to receive drops BID the assistant should instruct the patient to take the drops A)once a day B) twice a day C) three times a day D) four times a day

B) twice a day

Calibration of the applination tonometer is checked by A) only a qualified service technician B) using a measured weight attached to the tonometer balancing arm at 0, 2, and 6 C) using a measured weight attached to the tonometer balancing arm at 0, 3 and 5 D) having a second technician verify the IOP measurement on several patients to confirm tonometry accuracy

B) using a measured weight attached to the tonometer balancing arm at 0,2 and 6

When replacing the projector's lamp, it is important to A) leave the lamp housing on the projector B) wait a few minutes after its turned off C) disassemble the lamp reflector D) clean it with alcohol

B) wait a few minutes after it is turned off

A cycloplegic that is ideal for office use because it has rapid onset and short duration is A) tropicamide B) phenylephrine C) cyclopentolate D) atrophine

B)Phenylephrine

Which type of drug is used to treat acute allergic reactions? A) antibiotics B) antivirals C) antihistamines D) antiparasitics

C) antihistamines

Symptoms associated with red, irritated bloodshot eye are most likely due to an A) retinal detachment B) cataract C) conjunctivitis D) open-angle glaucoma

C) conjunctivitis

What two items are used to clean the retinoscopy lens, polarizing lens, red lens and maddox rod lens? A) lens cloth and canned air B) lens cloth and alcohol C) cotton tip swab and glass cleaner D) cotton tip swab and alcohol

C) cotton tip swab and glass cleaner

The surgical instrument used to enlarge the punctum is a A) forceps B) clamp C) dilator D) keratome

C) dilator

While scrubbing your heands and arms, the run off of soap and water should drip down the A) hands B) wrists C) elbows D) fingers

C) elbows

Viruses can be seen with a(n) A) magnifying glass B) light microscope C) electron microscope D) slit lamp

C) electron microscope

If a patient must be kept waiting tell them A) their appointment was never scheduled B) not to complain C) how long the wait may be and unfortunately schedules cannot be controlled due to emergencies D) to read the pamphlets in the waiting room

C) how long the wait may be and unfortunately schedules cannot be controlled due to emergencies

A hemorrhage that partially fills the anterior chamber with blood is called A) hydrops B) hypopion C) hyphema D) hypophoria

C) hyphema

An improperly measured interpupillary distance (PD) may result in A) a positive angle kappa B) an artificial exophthalmos C) induced prism in the spectacle lens D) secondary anisometropi

C) induced prism in the spectacle lens

The instrument that measures the curvature of the central part of the cornea is the A) tonometer B) pachymeter C) keratometer D) lensmeter

C) keratometer

Consensual light reflex in the right eye results in A) right pupil constriction B) right pupil dilation C) left pupil constriction D) left pupil dilation

C) left pupil constriction

The best way to guide a partially-sighted patient to an exam room is A) verbal directions B) with your hand on their shoulder C) offering your arm D) taking their hand

C) offering your arm

What is the main purpose of wearing impact resistant rather than ordinary glasses in an industrial setting? A) correct a refractive error B) give the patient a feeling of security C) prevent ocular injury D) prevent welding burns

C) prevent ocular injury

A triangular thickening of the conjunctiva that partially covers the cornea is known as A) hyphema B) pinguecula C) pterygium D) ptosis

C) pterygium

Universal precautions require that equipment or devices that only come in contact with patients intact skin should undergo A) sterilization before every use B) daily sterilization C) surface disinfection D) cleaning with detergent

C) surface disinfection

Which statement is true pertaining to the use of plain catgut sutures? A) The sutures have a low tendency toward tissue vascularization B) The sutures provide strong tensile strength predictability C) the sutures are absorbable D) the sutures are synthetic

C) the sutures are absorbable

What part of the spectacle frame connects the two lenses? A) Temple B) Cover C) Rim D) Bridge

D) Bridge

Which of the following conditions is NOT hereditary? A) Migraine B) Diabetes C) Nystagmus D) Conjunctivitis

D) Conjunctivitis

The exposed lens surface of an eye piece should be dusted periodically with a A) wet tissue B) dry sponge C) soapy cloth D) camel - hair brush

D) camel - hair brush

A granulated inflammation of the eyelid that may be removed surgically if it does not subside is a A) xanthalasma B) pterygium C) stye D) chalazion

D) chalazion

Before sterilization, monor surgical instruments should be A) soaked in instrument milk B) bleached C) dusted D) cleaned with oapy water

D) cleaned with soapy water

The results of keratometry can be expressed in A) cubic mm B) mm Hg C) centimeters D) diopters

D) diopters

Turning of the eyelid towards the globe is called A) esotropia B) epicanthus C) ectropion D) entropion

D) entropion

Of the following tests, which cannot be used for color vision testing? A) pseudo-isochromatic plates B) hardy - rand - ritter plates C) Nagal anomaloscope D) fly test

D) fly test

Which item is not a classification of fixation? A) central B) steady C) maintained D) primary

D) primay

Which drug is used for applanation tonometry? A) Hydrogen peroxide B) atropine C) pilocarpine D) proparacaine

D) proparacaine

The surgeons preference in instruments suture and preparation of the patient should be updated A) occasionally B) yearly C) rarely D) regularly

D) regularly

Corneal curvature measurement is vital to ensure that a contact lens A) touches the corneal surface B) touches the conjunctival surface C) rests on the cornea D) rests on the tear film

D) rests on the cornea

Oral medications are considered to be what kind of drugs? A) local B) subconjunctival C) retrobulbar D) systemic

D) systemic

Ophthalmologists have a duty to ensure that each patient understands their A) eye anatomy B) insurance coverage C) ophthalmic instructions D) treatment recommendations

D) treatment recommendations