Ophthalmic Medical Assistant Knowledge, Exams of Nursing

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salvy OPHTHALMIC TECH – COA EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS

OPHTHALMIC TECH - COA

The Joint Commission on Allied Health Personnel in Ophthalmology. - Precise Answer ✔✔What does JCAHPO stand for? Performing certain diagnostic test. - Precise Answer ✔✔What responsibility routinely falls to the ophthalmic medical assistant? Ophthalmologist. - Precise Answer ✔✔Which eye care professional is a medical doctor? Optician. - Precise Answer ✔✔Which eye care professional routinely fills prescriptions for eyeglasses? She/He will evaluate double vision. - Precise Answer ✔✔What does an orthoptist do? A Subspecialist. - Precise Answer ✔✔What do you call an ophthalmologist who concentrates on one area of the eye? An Ocularist. - Precise Answer ✔✔Which eye care professional can fit a patient with a prosthetic eye?

A certified ophthalmic technician. - Precise Answer ✔✔What is the level directly above a certified ophthalmic medical assistant on JCAHPO's certification ladder? It rotates the eye inward toward the nose. - Precise Answer ✔✔What is the primary function of the medial rectus muscle?

1. Optic nerve, 2. Optic Chiasm, 3. Visual Cortex - Precise Answer ✔✔Learn placement of... The Cornea. - Precise Answer ✔✔Which part of the eye provides two- thirds of the focusing power of the eye? The anterior chamber angle, through the trabecular meshwork, and to the canal of schlemm. - Precise Answer ✔✔The Aqueous fluid leaves the eye in what sequence? The palpebral conjunctiva. - Precise Answer ✔✔What is the membrane that lines the inner eyelid? The eyelid. - Precise Answer ✔✔What is part of the ocular adnexa? The aqueous humor. - Precise Answer ✔✔What is the term for the clear, transparent fluid that fills the anterior chamber?

The iris, ciliary body, and the choroid. - Precise Answer ✔✔Which structures are part of the uveal tract? Accommodation. - Precise Answer ✔✔What is the process where the lens changes shape to allow an individual to focus on a near target? Detailed central vision. - Precise Answer ✔✔What kind of vision loss is associated with injury or degeneration of the macula? The Sclera. - Precise Answer ✔✔What is the term for the white tissue surrounding the cornea and forming the main structural component of the globe? The lacrimal gland, lacrimal sac, and the punctum. - Precise Answer ✔✔Learn the locations of the... To change the pupil size in order to control the amount of light entering the eye. - Precise Answer ✔✔What is the primary function of the iris sphincter and dilator muscles? The poor vision in an eye secondary to visual deprivation in the first decade of life. - Precise Answer ✔✔What is amblyopia? Double Vision. - Precise Answer ✔✔What is diplopia? Inflammation. - Precise Answer ✔✔What does the suffix "itis" mean?

Exophthalmos (proptosis). - Precise Answer ✔✔What is the condition called where the orbital contents swell, pushing the eyeball forward? The eye muscles. - Precise Answer ✔✔What part of the eye undergoes surgery for congenital strabismus? The Optic Nerve. - Precise Answer ✔✔Primary open-angle glaucoma results in damage to what part of the eye? Esophoria. - Precise Answer ✔✔What is the term for the inward deviation of an eye that occurs only when the eye is covered? Ischemic. - Precise Answer ✔✔What is a tissue or organ called when it is deprived of its normal blood supply? A "sign". - Precise Answer ✔✔What is the term for an abnormal physical change that a physician observes while examining a patient? An opacification of the crystalline lens. - Precise Answer ✔✔What is a cataract? A lump that develops after inflammation and infection of the meibomian glands. - Precise Answer ✔✔What is a chalazion?

Metabolic - Precise Answer ✔✔Diabetes mellitus is what type of disease process? Retinal Detachment. - Precise Answer ✔✔What condition has symptoms that include flashes of light in the corner of the eye, followed by a sensation of a curtain moving across the vision? Kerato-conjunctiv-itis Sicca. - Precise Answer ✔✔What is another name for dry eye? Infection of the retina can be caused by the cytomegalovirus (CMV). Opportunistic infection of the retina are more likely when the CD4 count is less than 50. Antiretroviral drugs can help a person with HIV live symptom-free. - Precise Answer ✔✔Acquired Immunodeficiency Syndrome (AIDS). Hypertension. - Precise Answer ✔✔The retina examination is often important in detecting which disease? Type 2. - Precise Answer ✔✔What type of herpes simplex virus usually produces genital infections? Rheumatoid arthritis. - Precise Answer ✔✔Dry eyes are common in?

Mestastatic. - Precise Answer ✔✔What is a cancer that spreads to other parts of the body called? Nervous system. - Precise Answer ✔✔The eyes are considered part of which body system? Myasthenia Gravis. - Precise Answer ✔✔Which disease is a chronic autoimmune condition that interferes with proper nerve transmission in the skeletal muscles? Carbon dioxide. - Precise Answer ✔✔Which of the following is a waste product of metabolism? Optic Neuritis. - Precise Answer ✔✔What is a common eye disorder associated with multiple sclerosis? Thyroid eye disease. - Precise Answer ✔✔What is the most common cause of exophthalmos in an adult? 25 - Precise Answer ✔✔The occurrence of blindness among people with diabetes mellitus is ___ times that of the general population. +3.00-2.00x

1. Add the cyl & power to the sph.
2. Reverse the sign of the cyl.
3. Add or subtract 90 to the axis, 180 or less. - Precise Answer ✔✔What is the correct transposition of the plus-cylinder prescription +1.00+2.00x90 to its minus-cylinder? Nearsightedness - a common vision disorder that is usually diagnosed before age 20. (distance vision) - Precise Answer ✔✔What is myopic? Lenses thicker around their edges. - Precise Answer ✔✔What is a concave lens? Lenses thicker at their center than at their edges. - Precise Answer ✔✔What is a convex lens? The "add". - Precise Answer ✔✔What is the difference between the power of the upper segment and the power of the lower segment in a bifocal lens called? Finding the lens power that affects movement of the retinal reflex and fills the pupil with light. - Precise Answer ✔✔What is the process of neutralization during retinoscopy? Astigmatism. - Precise Answer ✔✔What is a topic cornea characteristic of?

A prism. - Precise Answer ✔✔If the lens meter mires cannot be centered in the central portion of the lens meter target, the lens probably contains what? +3.00 D - Precise Answer ✔✔The distance portion of an eyeglass lens is +2.00 D and the bifocal add is +1.00. What is the power of the lens through the bifocal segment? Transparent. - Precise Answer ✔✔What is a substance called that can permit the passage of light without significant disruption? Sphero - cylindrical lens. - Precise Answer ✔✔What type of lens best corrects myopia (distance) combines with astigmatism? Focus the eyepiece. - Precise Answer ✔✔What is the first step in preforming a manual lensometry or keratometry? 2.00 D - Precise Answer ✔✔What is the power in diopters of a convex lens with a focal length of 0.50 meter? Preventing discomfort during diagnostic procedures. - Precise Answer ✔✔In ophthalmology, topical anesthetics are most often used for what purpose? Nystatin. - Precise Answer ✔✔What is NOT used to treat bacterial infections?

Beta adrenergic blockers/Blood pressure - Precise Answer ✔✔Generic drugs that have a name that ends in "lol" are what? Anti-inflammatory and antiallergic agents, which reduce swelling and scarring of the lids and anterior segment. - Precise Answer ✔✔What is the primary function of topical corticosteroids? (Topical steroids) A Cycloplegic. - Precise Answer ✔✔What drug is most helpful when performing both a fundus examination and an objective refraction on a pediatric patient? Subcutaneous. - Precise Answer ✔✔What type of injection is classified as a form of system drug delivery? May blur vision when applied. - Precise Answer ✔✔What is a disadvantage of ophthalmic medicinal ointment? Contracting the ciliary body muscle and opening the outflow channels for aqueous humor. - Precise Answer ✔✔How do miotics function to reduce intraocular pressure? Blurred vision. - Precise Answer ✔✔What is a common side effect of cycloplegics?

1. Mydriatics

2. Cycloplegics - Precise Answer ✔✔Which 2 types of eye drops could stimulate an attack of angle-closure glaucoma in patients with narrow anterior chamber angles? Mydriatic. - Precise Answer ✔✔What is the topical drug phenylephrine classified as? Administer the medication directly into the conjunctival sac. - Precise Answer ✔✔What should be the ophthalmic medical assistant do when instilling eye drops? Ranibizumab. - Precise Answer ✔✔What is an example of an anti- VEGF agent? (Vascular endothelial growth factor) To reduce the opportunity for harmful microbes to flourish and threaten patients and medical personnel. - Precise Answer ✔✔What is the primary purpose of standard precautions? To sterilize medical materials by means of pressurized moist heat. - Precise Answer ✔✔What is an autoclave used fore? The destruction of all microorganisms. - Precise Answer ✔✔What is the best definition of sterilization? Discarded, no matter what its cost. - Precise Answer ✔✔If the ophthalmic medical assistant accidentally touches the sterile functional

surface of a disposable instrument, what should be done with the instrument. Wear gloves to protect both patients and themselves. - Precise Answer ✔✔What should ophthalmic medical assistants do with open cuts on their hands? Those who use homemade salt solutions to clean their contact lenses. - Precise Answer ✔✔Which people are most at risk for developing an ocular infection by the protozoan acanthamoeba? Herpes virus. - Precise Answer ✔✔What microbe is most likely to cause recurrent fever blisters? Indirect-contact transmission. - Precise Answer ✔✔What is an example of an infection caused when the eye has been penetrated by a contaminated metal fragment? A germicide. - Precise Answer ✔✔What is the best for disinfecting a tonometer tip? Fungal infection. - Precise Answer ✔✔What is a corneal abrasion caused by a tree twig most likely to cause? The swinging-light test. - Precise Answer ✔✔What procedure must be performed before pupillary dilation?

To measure deviation in a misaligned eye. - Precise Answer ✔✔What is the prism and alternate cover test used for? Amsler grid test. - Precise Answer ✔✔What test evaluates the disturbances or defects in the visual field? Extraocular Muscle Function. - Precise Answer ✔✔Having a patient follow a finger in the 6 cardinal positions of gaze is a method of evaluating which of the following? A refractive error. - Precise Answer ✔✔If a pinhole acuity test if found to significantly improve a patient's poor visual activity, the patient probably has what? Constrict. - Precise Answer ✔✔In a normal consensual reaction, when a light is directed into the pupil of one eye, what will the pupil of the other eye do? Every 2 to 4 years. - Precise Answer ✔✔How often should healthy, asymptomatic individuals between the ages of 40 and 64 have a comprehensive medical eye examination? The external examination. - Precise Answer ✔✔What part of the comprehensive medical eye examination includes the inspection of the visible parts of the lacrimal apparatus?

30 mm Hg. - Precise Answer ✔✔A reading of 3 on the Goldmann tonometer dial indicated an intraocular pressure means? A wider field of view of the fundus than does the direct ophthalmoscopy. - Precise Answer ✔✔What does indirect ophthalmoscopy provide? Include only the facts as stated by the patient. - Precise Answer ✔✔What should the ophthalmic medical assistant do when recording the patient's chief complaint? Application tonometry. - Precise Answer ✔✔Intraocular pressure is measured by flattening a small area of the central cornea using what procedure? Near visual acuity. - Precise Answer ✔✔Jaeger notations, Snellen M units, and distance equivalents are various units of measuring which of the following? Structures of the anterior chamber angle. - Precise Answer ✔✔What is the procedure called gonioscopy used to view? The distance in feet at which a normal eye can see a particular line of the chart. - Precise Answer ✔✔What does the number 100 represent when reading the Snellen acuity recording 20/100?

Biomicroscope. - Precise Answer ✔✔Which instrument can be used for close examination of the eyelids, lashes, cornea, and lens? Phoria. - Precise Answer ✔✔What is Latent Strabismus called? Versions. - Precise Answer ✔✔What term refers to observation of eye movements of both eyes together? Amblyopia (Lazy Eye). - Precise Answer ✔✔Monocular patients can have what? Abduction (Moving outwards). - Precise Answer ✔✔What is the horizontal eye movement that turns the eye laterally called? Medial rectus. - Precise Answer ✔✔The third cranial nerve controls which muscle? Visual field testing. - Precise Answer ✔✔What test is not part of the evaluation of ocular motility? Light-Polarizing Spectacles. - Precise Answer ✔✔Proper execution of the Titmus Stereopsis test requires the patient to wear what type of spectacles?

Lateral rectus. - Precise Answer ✔✔The sixth cranial nerve powers which extra ocular muscle? Hirschberg test. - Precise Answer ✔✔Which of the following is an example of a corneal light reflex test used for strabismus detection? To provide a 2-dimensional image of intraocular structures and abnormalities, such as tumors. - Precise Answer ✔✔B- scanultrasonography is used for what purpose? Cornea, Lens, and Vitreous. - Precise Answer ✔✔What are the 3 transparent structures that compose what is termed the ocular media? Thickness of the cornea. - Precise Answer ✔✔What is pachymetry useful in determining? Macular edema. - Precise Answer ✔✔Optical coherence tomography is used in the evaluation of what condition? Abnormalities in ocular blood vessels. - Precise Answer ✔✔Fluorescein angiography is a valuable method of detecting and documenting what? An error of 0.3 mm will result in approximately 1 diopter of intraocular lens (IOL) miscalculation. - Precise Answer ✔✔What statement applies to axial length measurement?

Specular microscopy/Photography. - Precise Answer ✔✔Which procedure is used for counting endothelial cells of the cornea? Optical coherence tomography (OCT). - Precise Answer ✔✔In glaucoma patients, changes in the cup-to-disc ratio and nerve fiber layer can be evaluated using what? Shorter than actual axial length measurement, with a resulting myopic postoperative refractive error. - Precise Answer ✔✔Compression of the cornea during A-Scan ultrasonography will result in what? It requires the examiner to move the target at the same speed in each direction. - Precise Answer ✔✔What is one disadvantage of Goldman perimetry? Superior nasal field of vision. - Precise Answer ✔✔Which field of vision will a defect in the inferior temporal retina affect? In the temporal visual field. - Precise Answer ✔✔Where does the physiologic blind spot appear on visual field charts? The patient has presbyopia. - Precise Answer ✔✔For accurate perimetry, the patient's near correction must be in place in what situation?

An isopter. - Precise Answer ✔✔On a visual field chart, in kinetic perimetry, a contour obtained with a single target of a particular size and brightness is known as what? It is a blind spot or partial loss of vision in what is otherwise a perfectly normal visual field. - Precise Answer ✔✔What is Scotoma? Threshold perimetry and suprathreshold perimetry. - Precise Answer ✔✔What are 2 examples of static perimetry? Threshold perimetry. - Precise Answer ✔✔The technique of placing a target of a given size in the visual field and gradually increasing its brightness until the patient sees it is the basis for what? It is more sensitive in detecting shallow defects than kinetic perimetry. - Precise Answer ✔✔What is one advantage of automated threshold perimetry? Circles of eccentricity at 10'' intervals. - Precise Answer ✔✔What do the printed circles on a visual field chart refer to? Extreme right on the horizontal meridian, and the other meridians are measured progressively in a counterclockwise direction. - Precise Answer ✔✔Generally, where is the 0" point located on visual field charts of both the right and left eye?

Progressive-addition multifocal lenses. - Precise Answer ✔✔Transitional zones of areas of bleeding that create distorted or blurred vision are a particular drawback of which lenses? Only for prescriptions with corrections greater than or equal to -5 or + D. - Precise Answer ✔✔The accurate measurement of vertex distance during refractometry is required in which circumstance? The optical center of a lens. - Precise Answer ✔✔Interpupillary distance is measured principally to determine what? Level with the lower eyelid margin. - Precise Answer ✔✔As a starting point, most opticians recommend fitting the top of a bifocal segment in what way? Polycarbonate. - Precise Answer ✔✔Due to its resistance to shattering, the material of choice for safety lenses is what? A double-D segment trifocal lens. - Precise Answer ✔✔Correction for distance, near, and intermediate distance in 1 lens can be achieved with what lens? From the center of 1 pupil to the center of the other pupil. - Precise Answer ✔✔How is the interpupilary distance measured?

Measure each pupil to the bridge of the nose separately and then add the results. - Precise Answer ✔✔What is the procedure for measuring monocular inter pupillary distance? 2.5x. - Precise Answer ✔✔At a 10-inch reading distance, how much magnification will a +10D lens provide? Magnifiers, Bright light, and Large print books. - Precise Answer ✔✔Low-vision aids consist of which grouping?

40. • Precise Answer ✔✔How many centimeters is the customary reading distance of 16 inches? When low vision cannot be improved by accurate refraction, medical or surgical treatment. - Precise Answer ✔✔When should a patient be referred to a low vision specialist? Visual acuity and peripheral vision sufficient to carry out normal activities. - Precise Answer ✔✔What is the definition of functional vision? Corrected visual acuity of less than 20/60 in both eyes. - Precise Answer ✔✔What is the World Health Organization's definition of low vision? Untreated cataract. - Precise Answer ✔✔What is the most cannon cause of low vision and blindness worldwide?

To prevent the growth of bacteria, viruses, and fungi. - Precise Answer ✔✔What is the primary purpose of disinfection of contact lenses? A preservative or disinfectant chemical in a lens solution. - Precise Answer ✔✔An allergic reaction related to contact lens wear is most often due to the individual's sensitivity to what? They are generally easier to adapt to and initially more comfortable to wear. - Precise Answer ✔✔What is one significant advantage of soft lenses over rigid gas-permeable lenses? One who is routinely exposed to excessive amounts of fumes or dust. - Precise Answer ✔✔Contact lenses are most likely to be contraindicated for what kind of patient? Sterile saline solution. - Precise Answer ✔✔What is the only acceptable rinsing solution for contact lenses? Either on the sclera below the cornea or on the cornea directly. - Precise Answer ✔✔Generally, when inserting a soft contact lens on a patient, where should the ophthalmic medical assistance first place the lens? To use as a prosthetic for disfigured eyes. - Precise Answer ✔✔Cosmetic restorative lenses are most appropriate for patients with what kind of need?

It can result in a corneal infection. - Precise Answer ✔✔What is typical of a corneal abrasion caused by foreign material lodged between the cornea and the contact lens? Irritation, redness, fogging, and decreased tolerated wearing time. - Precise Answer ✔✔What signs and symptoms indicate an allergic reaction to contact lens solutions? These lenses are often prescribed for patients with dry eyes and patients with previous problems related to their contact lenses. - Precise Answer ✔✔Which statement applies to silicone hydrogel contact lenses? Rigid gas-permeable lenses. - Precise Answer ✔✔Which lens type is best suited for treatment of difficult visual problems, such as keratoconus or irregular corneal surface? Including the power of the contact lens and base curve measurements. - Precise Answer ✔✔What is a characteristic of a prescription for contact lenses? Sudden, painless, and severe loss of vision. - Precise Answer ✔✔What symptoms are considered an emergency requiring immediate action? 24 to 48 hours. - Precise Answer ✔✔Generally, urgent situations are those requiring that the patient be seen within what timeframe?

Irrigate the eye with water for 20 minutes, and then proceed to the office or emergency facility. - Precise Answer ✔✔A patient telephones the ophthalmologist's office reporting an alkali burn in the eye. What should the ophthalmic assistant instruct the patient to do? Infants. - Precise Answer ✔✔The "fix and follow" method of evaluating visual function is generally used with which patients? Polypropylene. - Precise Answer ✔✔Which suture material is not broken down by the body but must be removed from the suture site? 10-0 - Precise Answer ✔✔What suture size is most likely to be used for cataract surgery? The spatula point. - Precise Answer ✔✔What is the rhomboid-shaped needle point used in procedures involving the cornea or sclera, where the plane of penetration must be precise? To flush out a tear duct with a irrigating solution. - Precise Answer ✔✔In lacrimnal-system probing, what is a cannula used for? Clamps. - Precise Answer ✔✔What does the surgeon use to maintain hemostasis during a surgical procedure?

The flap is too thin. - Precise Answer ✔✔Significant haze occurs in LASIK in which situation? Steepen the cornea. - Precise Answer ✔✔Hyperopic eyes are benefited by refractive procedures that do what? Increased corneal astigmatism. - Precise Answer ✔✔Which option is not a disadvantage related to a LASIK procedure? Glaucoma. - Precise Answer ✔✔Which condition is not a contraindication to refractive surgery? The corneal epithelium is mechanically removed and laser applied to the bowman layer, and the anterior stroma. - Precise Answer ✔✔What is one of the characteristics of photorefractive keratectomy? In front of the retina. - Precise Answer ✔✔In the absence of accommodation, where does the myopic eye focus images? Intracorneal ring segments. - Precise Answer ✔✔What refractive technique is reversible? Production of spherical aberrations. - Precise Answer ✔✔What is a limitation of cycloplegia in the preoperative refractive surgery evaluation?

Aberrometry. - Precise Answer ✔✔What is a term for wavefront error measurement? ICD - Precise Answer ✔✔What is the standard system for reporting diagnoses? A "suspected" diagnosis. - Precise Answer ✔✔The ophthalmic medical assistant should not code which option? Diagnosis. - Precise Answer ✔✔Which key component is not used to determine the appropriate level of E & M code? Medical necessity. - Precise Answer ✔✔What does appropriate code linking require? Employee health and safety. - Precise Answer ✔✔OSHA prescribes how practices protect which area? Medications. - Precise Answer ✔✔Which factor influencing a patient's condition is not listed in the ICD-10-CM classification system? Q codes. - Precise Answer ✔✔Which codes are used to describe congenital problems? The requirements for sharing protected health information with health care professionals and others. - Precise Answer ✔✔What does the