JCAT Independent Practice Exam

These questions are part of the practice quiz. Start practicing

• What is a key factor affecting the overall rating of a practitioner?
• The permeability of a contact lens is denoted by which value?
• Intraocular pressure is measured with a(n):
• What color indicates a "gram positive" result in a Gram stain?
• What is the term for drooping upper eyelids?
• A lens with a focal length of 2 meters has what power?
• Retroillumination detects:
• During a patient's assessment, what is crucial to inquire about regarding their visual symptoms?
• Near vision charts should be held about how many inches from the eye?
• In a glare testing, how many controlled degrees of light does the BAT test deliver when the eye is viewing a Snellen target?
• What unit is used to express the results of keratometry?
• The area between the two focal points of a spherocylindrical lens is called the Conoid of what?
• What is the proper technique to assist a visually impaired patient?
• What is the diameter of the plastic prism comprised of a flat surface within the applanation tonometer?
• What is the role of rods in the human eye?
• What is the primary purpose of a dilator in surgical procedures?
• Measuring visual acuity with a potential acuity meter is particularly useful for which patients?
• Which type of glaucoma is symptomless?
• The iris, ciliary body, and choroid are collectively referred to as what?
• What effect do mydriatics have on the eye?
• Oral medications are considered to be what kind of drug?
• Probing of the tear duct may be useful treatment for patients with:
• What is the term for the reading portion of a bifocal prescription?
• Which assessment method is typically used to evaluate how well an individual recognizes letters from a distance?
• Which type of tonometer is mounted on a slit lamp?
• What condition is characterized by the opacity of the crystalline lens of the eye leading to loss of visual acuity?
• What are the two bridge types located on a spectacle frame?
• What is a primary function of Allied Ophthalmic Personnel in the clinical setting?
• What is the MOST prevalent cell type in a scraping from allergic conjunctivitis?
• Ophthalmologists have a duty to ensure that each patient understands their:
• How is the calibration of the applanation tonometer checked?
• What is the purpose of a cycloplegic drug in eye procedures?
• A hemorrhage that partially fills the anterior chamber with blood is called:
• What is a cycloplegic that is ideal for office use because it is relatively weak and is primarily used for its dilating ability?
• A patient's prescription is -2.50 +1.00 x 175. What is the minus cylinder transposition?
• What ocular tissue does the A-scan spike labeled A and B represent?
• The use of topical steroids may induce which of the following?
• What is the term for the tonometry technique that displaces a minimal amount of fluid?
• A granulated inflammation of the eyelid that may be removed surgically if it does not subside is a:
• What number bulb is used in a non-contact tonometer?
• Which common familial ocular disorder should be recorded during a patient's history?
• What visual task would typically be hardest for a child under the age of 4?
• What part of a spectacle frame connects the two lenses?
• Axial length is provided by which measurement?
• What is the term for the "bending of light"?
• Before sterilization, minor surgical instruments should be:
• A fluorescein angiogram is used for which of the following?
• Which part of the eye constricts in bright light?
• What is the primary function of the meibomian glands?
• What is the MOST common way to record visual acuity in infants and preverbal children?
• What type of astigmatism does a patient have if the power of the vertical meridian is greater than the horizontal meridian?
• The triangular corners where the upper and lower eyelids meet are called:
• Which test is inappropriate for assessing color vision testing?
• Which tool uses a series of red cylinders to assess phoria?
• The dioptric power of the cornea is determined by:
• Which ocular tissue produces A scan spikes?
• Which condition might require the use of topical steroids?
• Which of the following medications has possible respiratory side effects?
• What type of illumination is best for photographing external eye structures?
• The MOST widely used method of visual field screening, requiring no special equipment, is:
• Small yellowish-white lesions located between the retinal pigment epithelium and Bruch's membrane are known as:
• A fibrovascular growth of the actinally damaged conjunctiva that invades a portion of the cornea from the limbus is a:
• Visual field loss due to optic nerve cupping is related to which condition?
• What important question should be asked of a patient that complains of a "red eye"?
• What common medium is used to culture microorganisms?
• Which visual symptom might suggest a need for immediate referral to a specialist?
• A slit lamp is used to examine the:
• Which drug is a powerful mydriatic and cycloplegic that can take up to two weeks to wear off?
• When a sound wave travels from one medium to another, an echo is produced by:
• Which test measures tear flow?
• Why is the precorneal tear film important for the eye?
• The spherical equivalent of +2.00 +5.00 x 180 is:
• Which structure in the eye contains the highest concentration of cones?
• Which layer of the eye is responsible for light absorption and reducing glare?
• The source used to obtain the image in Optical Coherence Tomography is:
• What is an important difference between soft and rigid contact lenses?
• Which of the following best defines the role of Allied Ophthalmic Personnel?
• What aspect does informed consent emphasize in patient engagement?
• What two items are used to clean the retinoscopy lens, polarizing lens, red lens, and Maddox rod lens?
• Which eye care professional specializes in measurement of eye movement and the extraocular muscles?
• Which medical professional specializes in the fitting of spectacles?
• The Amsler grid is designed to evaluate visual field deficiencies in how many degrees of central vision?
• What process best describes the patient's participation in their own treatment?
• What is the recommended distance used for assessing distance acuity?
• The concentration of a chemical in a pharmaceutical solution is also called the:
• The thickest layer of the cornea is called the:
• Which is an inappropriate method for routine maintenance on a phoropter?
• What is the term for a lens consisting of two cylinders of equal but opposite powers?
• The optical centers of spectacles lenses must be properly aligned to avoid which effect?
• What condition is often characterized by symptoms of eye fatigue?
• What is a term for the state of pupillary constriction?
• What are the eyelid glands that secrete oil called?
• What is one effect NOT caused by carbonic anhydrase inhibitors?
• Which action does NOT contribute to creating the amoric environment in the operating room?
• The zonular fibers that support the lens are attached to the:
• Advances in digital imaging technology facilitated the practical use of what type of dye?
• Atropine is primarily used for its effects in which situation?
• Which type of drug would not typically be used for treating allergic symptoms?
• What is the name of the instrument used to measure the thickness of the cornea and the depth of the anterior chamber?
• Which type of eye movement is primarily executed by the lateral rectus muscle?
• Which test is used to test stereopsis?
• The exposed lens surface of an eyepiece should be dusted periodically with a:
• Which statement is accurate concerning plain catgut sutures?
• Universal Precautions require that equipment or devices that only come in contact with a patient's intact skin should undergo:
• At what age can most infants typically follow moving objects with their eyes?
• Which type of visual receptors is responsible for processing color?
• What is NOT a common cause of instrument corrosion?
• Why is measuring corneal curvature essential for contact lenses?
• One of the first items to be obtained as part of history taking after introducing the patient is the:
• The distance from the anterior surface of the eye to the back surface of the spectacle lens is known as what?
• What term refers to symptoms caused by uncorrected refractive error?
• What is the term for an area of complete or partial blindness in an otherwise normal visual field?
• Which test uses prisms to align the corneal reflex?
• What are the three types of ophthalmic imaging?
• The primary role and responsibility of Allied Ophthalmic Personnel is the:
• How many dimensions are represented in a B-scan image?
• What is an important characteristic of the precorneal tear film?
• What is the MOST commonly used technique to perform a B scan?
• What does the numerator stand for in the 20/20 notation?
• Part of the rules for transposition is to change the axis of the cylinder by:
• What is the purpose for dilating the eye?
• What part of the patient examination involves asking specific questions in an orderly sequence?
• How are axial length measurements obtained?
• Consensual light reflex in the right eye results in:
• Which type of phoria can be assessed using the Maddox rod?
• If a person is able to see an object at 20 feet that can be seen at 60 feet by a person with no refractive error, their visual acuity is said to be:
• What is the visual acuity of a person who can see at 20 feet but would need to be at 80 feet to see clearly without refractive error?
• Which aspect is crucial when considering the power of a lens?
• The measurement used to determine the distance between the optical centers of spectacle lenses is what?
• What is first seen (recorded) in fluorescein angiography?
• Glaucoma primarily affects which ocular structure?
• Which condition might require probing of the tear duct?
• The unaccommodated emmetropic eye focuses parallel light rays from a distant source where?
• What color is the light filter used in applanation tonometry?
• Retinoscopy is an example of what type of refractometry?
• The cones of the human eye are sensitive to which colors?
• How are ultrasound biometric measurements obtained?
• What is the name of the condition where the eye does not refract light equally in all directions?
• What is the term for the "degerming" of the hands?
• What condition is commonly associated with excessive tearing?
• Which of the following is NOT a designation of a version?
• The ophthalmologist instructs that a patient is to receive the drops bid; the assistant should instruct the patient to take the drops:
• Which statement about the Maddox rod test is INCORRECT?
• Which eye condition is characterized by two clinical types, wet and dry?
• A patient who has had an intraocular lens implantation is referred to as:
• Drugs that dilate the pupils are called:
• What is the primary function of Timolol maleate?
• What is the disadvantage of a chemical-based rigid contact lens care system?
• What is the term for pupils that are of unequal size?
• Which drug is used for applanation tonometry?
• How is astigmatism characterized in relation to the cornea?
• Iridotomy is used to treat what type of condition?
• Symptoms associated with a red, irritated, and bloodshot eye are most likely due to what condition?
• In visual assessment, an infant would be expected to reach for toys by the age of:
• How often should the surgeon's preferences in instruments, sutures, and preparation of the patient be updated?
• The physiologic blind spot is associated with which structure?
• The calibration of the Goldmann applanation tonometer should be checked at which settings?
• Which statement refers to the letters on the Snellen chart?
• Which of the following most qualifies as a chief complaint?
• Which surgical instrument is used to enlarge the punctum?
• What is the abbreviation for "gram"?
• Soft contact lenses are susceptible to deposits of:
• Drugs that dilate the pupil without cycloplegia operate by stimulating which iris muscle?
• What is the name of the drug that treats glaucoma by decreasing aqueous humor production?
• What test illuminates the screen with a filter that is red on one side and green on the other?
• In A-scan biometry, which ocular measurement provides the axial length of the globe?
• On the back of spectacle frames, the figures such as 46 x 22 represent what?
• To provide informed consent, patients MUST
• Which type of drug is used to treat allergic reactions?
• Ophthalmologists are responsible for explaining treatment recommendations to ensure which of the following?
• What is the function of precorneal tear film?
• If a patient is unable to distinguish the largest letter on a Snellen chart, the assistant should:
• Starting with plano in retinoscopy and using an appropriate working lens at 66 cm, a "with" reflex is most commonly obtained in which refractive error?
• What is the name of the instrument that measures the power of spectacle lenses?
• How many extraocular muscles are responsible for moving each eye?
• What is the site where half the nerve fibers from each eye cross over to the opposite side called?
• If the amount of light information transmitted to the brain from one eye differs from that of the other, the patient has a(n):
• What is the condition where the eyelashes roll and rub against the cornea?
• Which type of perimetry technique involves a moving target?
• What is typically included in treatment recommendations provided by ophthalmologists?
• Which symptom requires prompt attention?
• What is the name of the formula used to calculate induced prismatic effect caused by spectacle lenses?
• To photograph the posterior pole, the center of focus is:
• What is the MAIN purpose of wearing impact resistant, rather than ordinary, glasses in an industrial setting?
• Which eye drop inactivates the sphincter muscle of the iris?
• Which of the following is the correct direction for aqueous humor flow?
• What is the name for the instrument that measures the curvature of the central part of the cornea?
• What type of patients uniformly require a threshold 24-degree central field test?
• What is the term for the tendency of one eye to turn upwards?
• Which symptom indicates that a more serious condition might be present in patients with eye health issues?
• Which test compares the direct and consensual responses to the pupil?
• If poor vision is simply due to refractive error, the acuity should improve with use of a(n):
• If a patient must be kept waiting, what should be conveyed to them?
• Viruses can be seen with a(n):
• What optical characteristic is vital for fitting contact lenses properly?
• Scotomas located immediately nasal or temporal to fixation are known as:
• The fluid between the cornea and iris is:
• Which process is useful for measuring corneal astigmatism?
• How many layers comprise the tear layer?
• What is the second step in preparing absorbable sutures before loading them on a needle holder?
• Which of the following is NOT hereditary?
• When replacing the lamp for a projector, it is important to:
• How many nerves are responsible for innervating the six extraocular muscles?
• What is the primary purpose of using prisms in vision assessments?
• While scrubbing your hands and arms, the run off of soap and water should drip down the:
• What is the condition where parallel rays of light come to focus at a point just in front of the retina with respect to the unaccommodated eye?
• Which instrument is used in chalazion surgery?
• Which muscle is primarily responsible for adducting the eye?
• Which instrument is primarily utilized for measuring intraocular pressure?
• Which of the following is NOT a requirement for informed consent?
• According to OSHA regulations, what is the most effective way to comply with Universal Precautions?