COA Ophthalmic Tech Practice Exam

These questions are part of the practice quiz. Start practicing

• Which role involves evaluating vision problems related to eye muscle coordination?
• What role does glare testing play in comprehensive eye care?
• Exophthalmos is most commonly associated with which medical condition?
• In the absence of accommodation, where does a myopic eye focus images?
• What is the expected reaction of the pupil of one eye when light is directed into the pupil of the other eye?
• "Against the rule" refers to the corneal astigmatism when?
• If a patient has had refractive surgery, a direct keratometry reading will be?
• Which of the following are the three principal types of ophthalmic imaging?
• Which structure in the eye helps in maintaining intraocular pressure?
• What is Latent Strabismus more commonly referred to as?
• What is the function of the inferior oblique muscle in the eye?
• What does the term "myopic" refer to in vision?
• What do you call an ophthalmologist who specializes in one area of the eye?
• Why is ultrasonography used in ophthalmology?
• Optical coherence tomography is primarily used to evaluate which condition?
• What is a common characteristic of glare testing devices?
• Which condition is linked with the measurement of tear production?
• Which lens type is best suited for treatment of difficult visual problems, such as keratoconus or irregular corneal surface?
• What is esophoria?
• A history of strabismus surgery should be included in which part of a patient's records?
• What refractive error occurs when parallel rays focus behind the retina?
• How should the top of a bifocal segment be fitted according to most opticians?
• Which ocular condition is typically assessed using the exophthalmometer?
• What is typical of a corneal abrasion caused by foreign material lodged between the cornea and the contact lens?
• How does the use of a spatula point needle benefit procedures on the cornea?
• Which of the following can lead to a significant haze after LASIK?
• What does a front surface mirror provide when measuring reflection?
• What is a key characteristic of an ocularist?
• What condition can lead to opportunistic infection of the retina?
• Onset and duration of symptoms is included in the patient's?
• Which material is preferred for safety lenses due to its shatter resistance?
• How long are the Schirmer strips left in place during a tear test?
• When is accurate measurement of vertex distance particularly required during refractometry?
• Which statement applies to silicone hydrogel contact lenses?
• What is the primary purpose of disinfection of contact lenses?
• Which characteristic of a lens determines its focusing power?
• During diastole, intraocular pressure _______________ as blood flows out of the globe.
• Jaeger notations, Snellen M units, and distance equivalents are used to measure what aspect of vision?
• How does sickle cell disease affect the eye?
• In glaucoma assessment, changes in the cup-to-disc ratio can be monitored using what technology?
• Which of the following is not considered a disadvantage of a LASIK procedure?
• Which of the following increases intraocular pressure?
• Which ethnic group is most frequently affected by blindness?
• A reading of 3 on the Goldmann tonometer dial indicates what level of intraocular pressure?
• Pachymetry is useful for determining what aspect of the eye?
• Which of the following methods can be used to measure visual acuity potential?
• Where is the physiological blind spot located?
• What is another name for dry eye?
• What is one characteristic of photorefractive keratectomy?
• What is the condition known as when the orbital contents swell, pushing the eyeball forward?
• What color are the bottle caps of mydriatic agents?
• Who routinely fills prescriptions for eyeglasses?
• In what situation might a healthcare provider consider using cycloplegics?
• What type of vision loss is associated with injury or degeneration of the macula?
• What type of spectacles must a patient wear for proper execution of the Titmus Stereopsis test?
• What is the term for the contour obtained with a single target of a particular size and brightness in kinetic perimetry?
• What procedure must be completed prior to pupillary dilation?
• What is the purpose of testing visual acuity with a pinhole?
• What is the effect of hyperopia on vision?
• What are the three transparent structures that compose the ocular media?
• Which of the following surgical instruments is used to grab small tissues for either tissue removal or suture insertion?
• Which color vision test consists of pseudo isochromatic plates to assess red-green color anomalies?
• What is a common cause of amblyopia in children?
• What error margin in axial length measurement leads to a diopter miscalculation for intraocular lens?
• What is the result of the transposition of +3.00+2.00x90?
• For accurate perimetry, what must be considered for a patient with presbyopia?
• What is a major disadvantage of using ophthalmic medicinal ointment?
• What is the usual recommended frequency for replacing contact lenses?
• Which of the following best describes the term 'versions' in ophthalmology?
• What is the primary purpose of the Schirmer test?
• What is the primary purpose of the lacrimal apparatus?
• What is indicated by a CD4 count of less than 50?
• How many centimeters is the customary reading distance equivalent to 16 inches?
• Which cells are absent in the physiological blind spot?
• What is a chalazion?
• What do the printed circles on a visual field chart represent?
• What is the primary function of the sphincter muscle of the iris?
• What types of medications or supplements increase a patient's propensity to bleed, exacerbating certain eye diseases?
• Why is the fovea part of the visual field seen in great detail?
• What microbe is commonly associated with causing recurrent fever blisters?
• Which type of ophthalmic medication typically has a longer shelf life?
• What is the primary function of the medial rectus muscle?
• What suture size is most likely to be used for cataract surgery?
• What does scotoma refer to in the context of vision?
• What is the spherical equivalent of -2.00+3.00x90?
• Which of the following keratometry readings is considered shorthand and thus omits the axis of the flatter meridian?
• Transpose the following into a minus cylinder: +3.00+1.00x180.
• When inserting a soft contact lens on a patient, where should the ophthalmic medical assistant first place the lens?
• How does the Geneva lens clock work?
• What term describes the observation of eye movements of both eyes working together?
• What is a common effect of improper sterilization of surgical instruments?
• Which condition causes a gradual loss of accommodation leading to difficulties with near vision?
• How many times more likely are individuals with diabetes to become blind compared to the general population?
• Which of the following best describes the Brightness Acuity Test?
• What is a common intervention for treating dry eye syndrome?
• Which of the following is not a test for evaluating ocular motility?
• What is a common symptom of a refractive error?
• Which test is conducted for a patient who experiences metamorphopsia, indicating straight lines appear wavy?
• What type of anesthetic is typically used for minor procedures?
• Which condition can rheumatoid arthritis lead to regarding eye health?
• What does a positive result in the swinging flashlight test indicate?
• During retinoscopy, what does the behavior of the retinal reflex indicate?
• What is one advantage of automated threshold perimetry?
• Primary open-angle glaucoma primarily damages which part of the eye?
• What is a principal diagnostic reason for performing a B-scan ultrasonography?
• What signs and symptoms indicate an allergic reaction to contact lens solutions?
• When evaluating a patient with a headache as a chief complaint, which information is essential to collect?
• Which instrument measures the radius of curvature, or base curve, of a spectacle lens surface in diopters?
• Which condition is generally not a contraindication for refractive surgery?
• What aspect of the eye does the biomicroscope allow the ophthalmic technician to examine?
• What are the principal delivery systems for ophthalmic medication?
• If an ophthalmic medical assistant accidentally touches the sterile functional surface of a disposable instrument, what should be done with the instrument?
• What type of test is used to measure visual acuity in children?
• What anatomy includes the lacrimal gland, lacrimal sac, and punctum?
• What is a common side effect of cycloplegics?
• A defect in the inferior temporal retina will affect which field of vision?
• What is the name of the test used for detecting a relative afferent pupillary defect?
• Diabetes mellitus is classified as what type of disease process?
• What is the procedure for measuring monocular interpupillary distance?
• What is the effect of herpes on eye health?
• What kind of information does the retina provide during an examination?
• What type of infection is Trachoma?
• What is the sequence through which aqueous fluid leaves the eye?
• How is glare testing commonly performed?
• What type of lens is characterized as being thicker around the edges?
• What is the correct transposition of the plus-cylinder prescription +1.00+2.00x90 to its minus-cylinder?
• An ophthalmometer is also known as a?
• What refractive error is characterized by parallel rays focusing in front of the retina?
• Generally, urgent situations are those requiring that the patient be seen within what timeframe?
• B-scan ultrasonography is primarily used for what purpose?
• How frequently should healthy, asymptomatic individuals aged 40 to 64 have a comprehensive medical eye examination?
• A shadow on the nasal iris during a flashlight test suggests what about the anterior chamber depth?
• Monocular patients can experience which condition?
• What is a critical part of the aseptic technique in surgeries?
• What is the first step in performing lensometry or keratometry?
• Which type of herpes simplex virus usually produces genital infections?
• Which types of eye irritations can preservatives in eye drops cause?
• Application tonometry is a procedure used to measure intraocular pressure by what method?
• Which procedure utilizes specular microscopy for a specific purpose?
• What is the first step in performing manual lensometry or keratometry?
• In lacrimal-system probing, what is the primary use of a cannula?
• Which condition is a common risk factor associated with contact lens wear?
• Which relatives should be included in a patient's pertinent family history?
• Which two types of eye drops could potentially trigger an attack of angle-closure glaucoma in patients with narrow anterior chamber angles?
• What is the primary purpose of conducting contrast sensitivity testing?
• Which patient condition might warrant the use of glare testing devices?
• What is the most common cause of exophthalmos in adults?
• Which structures are part of the uveal tract?
• Which of the following are steps surgical team members can take to avoid spreading infection to the patient?
• Which test is used to measure the amount of tear production?
• What is the term for the clear, transparent fluid that fills the anterior chamber?
• Which instrument is used to sterilize surgical implements using pressurized steam?
• What is the term for an abnormal physical change observed by a physician during an exam?
• What color defects may be distinguished by the Ishihara test?
• What effect do anticholinergics have in patients with narrow-angle glaucoma?
• What is the medical term for eyelashes growing backward and contacting the eye?
• What is the primary focus of ophthalmologists?
• On visual field charts, where is the physiological blind spot typically located?
• What type of injection is classified as a form of systemic drug delivery?
• In which condition might you observe inflammation indicated by the suffix "itis"?
• What characterizes trichiasis?
• What is the desired effect of steepening the cornea in hyperopic patients?
• What is a cancer that spreads to other parts of the body called?
• What is the power in diopters of a convex lens with a focal length of 0.50 meters?
• What is the purpose of the slit beam in anterior chamber depth estimation?
• What is the primary role of the iris in the eye?
• Mydriasis refers to what physiological condition of the pupils?
• Which of the following agents is used to treat wet age-related macular degeneration?
• What part of the cornea does the keratometer measure?
• What information does a visual field test provide?
• Which type of lens is thicker at the center than at the edges?
• Contact lenses are most likely to be contraindicated for what kind of patient?
• What type of glare does the Brightness Acuity Test primarily assess?
• What condition is characterized by irregular curvature of the cornea?
• What is the primary benefit of using rigid gas-permeable lenses over soft lenses?
• The eyes are considered part of which body system?
• Where does the Medial Canthus occur in relation to the eyelids?
• What is the role of an orthoptist?
• A-scan biometry measures the distance between which internal structures of the eye?
• What medications are commonly used as topical anesthetics in ophthalmology?
• What type of imaging utilizes a slit-lamp?
• What does pachymetry measure in the cornea?
• What is a key advantage of indirect ophthalmoscopy?
• What does having a patient follow a finger in the 6 cardinal positions of gaze evaluate?
• What shape is the needle point used in procedures involving the cornea or sclera that requires precise penetration?
• Which of the following surgical instruments is used to deliver liquids, such as balanced salt solution (BSS), to the surgical site?
• Who can fit a patient with a prosthetic eye?
• What is the purpose of visual potential testing?
• Which surgical instrument has a wire tip that carries an electrical current and is used to seal blood vessels and stop blood flow?
• What is the primary function of a concave lens?
• Which of the following tests might be administered before a glare test?
• What is a likely consequence of a corneal abrasion caused by a tree twig?
• Which of the following is a potential advantage of using topical delivery for ophthalmic drugs?
• What is the purpose of the prism and alternate cover test?
• Which optical instrument is primarily used for measuring the curvature of the cornea?
• If a pinhole acuity test significantly improves a patient's poor visual activity, what is likely present?
• What term describes a substance that allows light to pass through with minimal disruption?
• What type of refractive procedures benefit hyperopic eyes?
• What are the three large groups of anti-infective agents?
• Which condition does mydriasis commonly indicate?
• What are common symptoms of double vision?
• What is the important screening process used in emergencies to determine a patient's ocular needs?
• What is the appropriate action to take if a piece of medical equipment is suspected of being contaminated?
• Which condition can be a result of untreated infections affecting the eye?
• What is the difference between the power of the upper segment and the power of the lower segment in a bifocal lens called?
• What is one of the purposes of performing pachymetry?
• Anisocoria describes a condition involving what?
• What diagnostic term is used when a patient's chief complaints are "tired eyes and fatigue" when describing symptoms?
• When should a patient be referred to a low vision specialist?
• Transitional zones causing distorted or blurred vision are a drawback of which lens type?
• How is anterior chamber depth estimated using a slit lamp?
• Which practice helps prevent cross-contamination in an ophthalmic setting?
• What is the purpose of a mapping system in measuring the visual field?
• What area is primarily responsible for high-resolution vision?
• Which of the following is an example of a glare testing device?
• What is primarily affected by age-related macular degeneration?
• What is the basis of threshold perimetry?
• Which condition is primarily associated with elevated intraocular pressure?
• Why is glare testing performed in ophthalmic examinations?
• Where are the aqueous convection currents the warmest?
• What type of test is primarily used to assess the corneal curvature?
• Interpupillary distance is primarily measured to determine what?
• Which refractive technique is reversible?
• What is the primary benefit of using an ointment over eye drops?
• What type of lens is used for correcting hyperopia?
• What is the level directly above a certified ophthalmic medical assistant on JCAHPO's certification ladder?
• How is sterilization best defined?
• Which elements are considered important during social history taking?
• What is the total power of a lens if the distance portion is +2.00 D and the bifocal add is +1.00?
• Which condition does 'Phoria' indicate in a patient?
• What is the primary purpose of glare testing devices?
• Which instrument is used to measure the extension of the anterior surface of the cornea beyond the lateral orbital rim?
• The measurement of the anterior chamber depth is critical for which surgical procedure?
• A patient reporting hives after taking sulfa drugs is indicating what type of information?
• In ophthalmology, topical anesthetics are primarily used for which purpose?
• What does TVA stand for in the context of glare testing?
• Ophthalmologists estimate anterior chamber depth by measuring the angle between which two structures?
• What is the most common symptom in age-related macular degeneration?
• What term describes the horizontal eye movement that turns the eye laterally?
• Which of the following extraocular muscles is responsible for turning the eye left and right?
• Cosmetic restorative lenses are most appropriate for which kind of patient need?
• What is an effective strategy to prevent visual impairment?
• The ciliary body is primarily responsible for which function?
• Which test is used to evaluate disturbances or defects in the visual field?
• What should a patient do if they experience discomfort while wearing contact lenses?
• What is the term for the absence of a natural lens in the eye?
• Which eye disorder is frequently associated with multiple sclerosis?
• What is the primary function of topical corticosteroids?
• Which muscle is controlled by the third cranial nerve?
• What is a common effect of eye drop preservatives that patients might experience?
• At a reading distance of 10 inches, how much magnification does a +10D lens provide?
• What should a patient unable to identify their medications be asked instead?
• Which of the following is NOT a typical symptom of cataracts?
• What is the only acceptable rinsing solution for contact lenses?
• What is the primary purpose of a visual acuity test?
• What condition is primarily indicated by the presence of optic neuritis?
• Which color indicates the bottle caps of prostaglandin agents like latanoprost?
• What is the best method for disinfecting a tonometer tip?
• Which two ocular structures can touch if the anterior chamber is flat?
• Which eye disease is known to be irreversible but treatable?
• An allergic reaction related to contact lens wear is most often due to what?
• Low-vision aids typically consist of which of the following?
• What common ocular condition is associated with symptoms of floaters and flashing lights?
• How is the interpupillary distance measured?
• What part of the comprehensive medical eye examination includes inspecting the visible parts of the lacrimal apparatus?
• Which of the following infections can significantly affect eye health?
• Which of the following is a task of an optometrist?
• A patient suffering from epiphora may require which of the following procedures?
• What action occurs when the inferior rectus muscle contracts?
• The "fix and follow" method of evaluating visual function is generally used with which patients?
• What is the primary consequence of inadequate sterilization in a medical facility?
• When is the superior rectus muscle engaged?
• What function does the Superior Oblique muscle serve?
• What is the process called where the lens changes shape to allow focusing on a near target?
• What is the membrane that lines the inner eyelid called?
• What does Community Health assess?
• In which situation is significant haze likely to occur during a LASIK procedure?
• What should ophthalmic medical assistants do when they have open cuts on their hands?
• Where is the 0-degree point typically located on visual field charts for both eyes?
• What does JCAHPO stand for?
• One disadvantage of Goldman perimetry is related to what?
• What is a common waste product produced from metabolism?
• Which part of the eye is surgically addressed for congenital strabismus?
• Which eye care professional primarily handles prescription eyewear?
• Which suture material is not broken down by the body but must be removed from the suture site?
• What does the term visual field refer to?
• Define "presbyopia".
• What antiseptic solution can be used for disinfecting a patient's skin?
• What is the primary purpose of an optical coherence tomography (OCT) scan?
• What is the function of an autoclave in a healthcare environment?
• How many degrees of central vision does an Amsler grid measure?
• What visual condition is characterized by the inability to focus on nearby objects?
• Recent onset of light flashes and floaters is an example of an ocular?
• What happens to the cornea's anterior stroma in photorefractive keratectomy?
• What type of lens is designed to provide correction for distance, near, and intermediate vision all in one?
• What is the white tissue surrounding the cornea called?
• What instrument is used to measure proptosis or exophthalmos in millimeters?
• Prior use of topical ocular pharmaceuticals falls under which category in a patient's record?
• What is a common risk factor associated with dry eye syndrome?
• What is the primary function of the iris sphincter and dilator muscles?
• What term describes a sudden, painless loss of vision?
• What is NOT used to treat bacterial infections?
• What does the suffix "itis" indicate?
• What is the primary purpose of performing keratometry?
• What does gonioscopy allow for the examination of?
• How is intraocular pressure primarily assessed in clinical settings?
• When the Amsler Grid is viewed correctly, each square subtends an angle of how many degrees?
• Which disorder is most likely to result in exophthalmos?
• Which structures are included in the adnexa of the eye?
• What is the primary purpose of standard precautions in a medical setting?
• Who is most at risk for developing an ocular infection from the protozoan acanthamoeba?
• What is a potential limitation of glare testing?
• Which glare test is designed to measure the effect of glare on visual performance?
• What is the main goal of follow-up appointments for contact lens wearers?
• Which condition has symptoms that include flashes of light in the corner of the eye?
• Which factor is deemed critical in managing glaucoma?
• What is the classification of the topical drug phenylephrine?
• Which of the following can be a part of the vision examination?
• An abnormal angle indicating a shallow anterior chamber could suggest what clinical issue?
• Which test is specifically performed to assess the extent of macular degeneration?
• What is a sign of sub-conjunctival hemorrhage?
• A true allergic reaction to a drug might involve which of the following symptoms?
• Which type of lens is most effective in correcting myopia combined with astigmatism?
• The incidence of blindness in people with diabetes mellitus is how many times that of the general population?
• What are the four principal categories of adjunctive tests in ophthalmology?
• What percentage of visual impairment is considered preventable or treatable worldwide?
• A patient reports an alkali burn in the eye. What should the ophthalmic assistant instruct the patient to do?
• The primary application of A-scan biometry is to calculate the power of what type of implant?
• What is the World Health Organization's definition of low vision?
• What is the primary purpose of perimetry?
• When are adjunctive ophthalmic tests indicated?
• What type of patients might benefit from the results of glare testing?
• Which drug is most effective when performing a fundus examination and objective refraction on pediatric patients?
• In which population is sickle cell disease most prevalent?
• Which factor is considered most important when interpreting glare test results?
• How is fluorescein angiography conducted?
• Which test is an example of a corneal light reflex test used to detect strabismus?
• What type of tissue forms the eyelid?
• Conventionally, the first number in a written keratometry reading corresponds to?
• What does the term "Cilia" refer to in ophthalmology?
• Mild ocular irritation, itching and burning are patient complaints that would be handled as __________ situations?
• In the Snellen acuity recording of 20/100, what does the number 100 represent?
• The retina examination is important for detecting what condition?
• What is amblyopia commonly associated with?
• What is the transposition of -4.00+3.00x45?
• What is a cataract?
• What is a common symptom of dry eye syndrome?
• What is the main focus of external eye photography?
• What are drugs that dilate the pupil and paralyze the iris sphincter muscle called?
• Which type of infection is caused when the eye is penetrated by a contaminated metal fragment?
• What does the Amsler Grid help assess in a patient's vision?
• What is a characteristic of a prescription for contact lenses?
• Which technique focuses on preventing infection during surgeries by maintaining sterility?
• What term describes a tissue or organ deprived of its normal blood supply?
• What instrument is typically used for close examination of the eyelids, lashes, cornea, and lens?
• The sixth cranial nerve is responsible for powering which extra ocular muscle?
• What complications can arise due to the use of clamps during surgery?
• Which of the following is part of the ocular adnexa?
• Which part of the eye provides two-thirds of the focusing power of the eye?
• At what time of the day is the intraocular pressure highest?
• What is one significant advantage of soft lenses over rigid gas-permeable lenses?
• What surgical procedure is most commonly used to treat spastic senile entropion?
• Which disease is characterized as a chronic autoimmune condition affecting nerve transmission in skeletal muscles?
• Fluorescein angiography is notably effective for detecting what in ocular health?
• What condition is indicated by deviations in the Amsler grid test results?
• When documenting a patient's chief complaint, what should the ophthalmic medical assistant prioritize?
• In which type of mirror does an object's tip appear to touch its image when in contact with the glass?
• In which ocular disorder can the ophthalmometer be used to obtain measurements?
• What are the Medial Canthus and Lateral Canthus?
• What is the process of neutralization during retinoscopy?
• Eye Con is categorized under which type of testing device?
• What is the definition of functional vision?
• What is the term used for the reason for the patient's visit?
• A patient suffering from distorted vision such as "fuzzy" or "minified" objects may be suffering from?
• The mannerisms of blind children, such as walking in circles or rubbing their hands, are termed?
• Dry eyes are commonly associated with which condition?
• Which procedure is essential for minimizing infection during a patient examination?
• Who typically administers ophthalmic drug injections?
• During a surgical procedure, what is typically used by the surgeon to maintain hemostasis?
• What ocular disease is particularly significant in the family ophthalmic history of African Americans?
• Which of the following are examples of static perimetry?
• Which of the following is not a principal form of topical ophthalmic medication?
• What kind of light do topical anesthetics help manage during an eye examination?
• What causes Trachoma?
• Which structure in the visual pathway is located first?
• Which of the following is an example of an anti-VEGF agent?
• What is the most common cause of blurred vision?
• What symptom would suggest a retinal detachment?
• What is the correct method for an ophthalmic medical assistant to instill eye drops?
• What type of lens is commonly used to correct hyperopia?
• What symptoms are considered an emergency requiring immediate action?
• If the lens meter mires cannot be centered in the central portion of the lens meter target, what does this likely indicate?
• Why is it essential to observe the patient during visual acuity testing?
• What is a common symptom associated with glaucoma?
• In evaluating visual acuity, what is a primary significance of the Snellen chart?
• What is diplopia?
• Which eye care professional is considered a medical doctor?
• What is fluorescein angiography primarily used for?
• What can help a person with HIV live symptom-free?
• Which responsibility routinely falls to the ophthalmic medical assistant?
• Generic drugs that have a name ending in "lol" are classified as what?
• What systemic disease is important to note in the family medical history of African Americans?
• What does A-scan biometry primarily focus on measuring?
• How do miotics function to reduce intraocular pressure?
• Within how many hours should a patient with a retinal detachment be evaluated?
• Which of the following best describes the role of the trabecular meshwork?
• Which muscle of the iris constricts in bright light?
• What is the primary role of the lateral rectus muscle?
• What is the most common cause of low vision and blindness worldwide?
• During A-Scan ultrasonography, what occurs due to corneal compression?
• What type of vision correction is achieved with a convex lens?
• If a patient is suffering from monocular diplopia, what is true about their vision?
• What is a major advantage of drugs in ointments or gels compared to eye drops?
• Which of the following surgical instruments creates enough tissue compression to stop blood flow?