National Vision Optometric Technician Level 2 Practice Test

These questions are part of the practice quiz. Start practicing

• What commonly used term refers to the phrase "pink-eye"?
• What is the primary function of the choroid layer in the eye?
• Which layer of the cornea is the innermost?
• What does the neural tunic consist of?
• What is the term for a common infection and/or inflammation of the eyelid and skin around the eye?
• What role do rods play in the visual system?
• What is a key drawback of segmented multifocal contacts?
• What does the term "DIA" in a contact lens prescription indicate?
• Which retinal cells are responsible for color vision, daytime vision, and the central portion of the visual field?
• What is the primary symptom of glaucoma?
• Which condition can be caused or accelerated by unfiltered UV exposure?
• Which refractive error causes different focal lengths in different planes on the cornea, resulting in blurred vision at distance and at near?
• What condition is characterized by abnormal sensitivity to light?
• What is the name of the clear, jelly-like substance that fills the eye cavity behind the lens?
• Which part of the eye is known to respond primarily to bright light and provides color vision?
• Which part of the brain is the endpoint of the optic nerve where images are processed?
• What phenomenon describes the scattering of light?
• Which process does the brain use to combine images captured from both eyes into a single image?
• Multifocal contact lenses are designed to:
• In a standard eye exam, what is tested to determine visual acuity?
• Which type of lens has the same power and curvature in every direction?
• What term refers to paralytic drooping of the upper eyelid?
• What can a blocked Meibomian gland develop into?
• What is aphakia?
• Which part of the eye includes the vitreous, retina, and choroid?
• What is photokeratitis?
• Which procedure should be performed before a Patient wearing contact lenses removes them?
• What condition is defined as a paralysis causing drooping of the upper eyelid?
• What type of glass is known for its general excellence in spectacle lenses?
• Which extraocular muscle is strongest and turns the eye towards the nose?
• What is the common treatment for astigmatism?
• Which method is most effective for protecting eyes from sun damage?
• Is it permissible to remove the instrument body case and attempt repairs on technician equipment?
• What does decentration refer to in optics?
• Which optical error is associated with blurred vision due to dispersion of light through a lens?
• What action does the superior rectus perform when functioning?
• Which of the following are growths on the sclera due to excessive sun exposure?
• If a presbyopic patient uses single vision distance contacts, what will they need for near vision tasks?
• What does achromatic mean in relation to lenses?
• What is the refractive condition of a normal eye called?
• What are the six muscles outside the eye responsible for all movements known as?
• Which of the following describes the visual effect of light-sensitive cells in bright conditions?
• What is the effect of UV exposure on aging skin?
• Daily Disposable lenses are intended to be:
• What condition is characterized by inflammation of the conjunctiva?
• On a CL Rx, what component is used only when there is astigmatism correction, measured in degrees from 001 to 180?
• What is the anterior chamber of the eye?
• What defines Disposable contact lenses?
• What do the "SPH" measurements in a contact lens prescription indicate?
• How does the power indicated by "CYL" typically change in a prescription?
• What condition involves a need for correction to improve focus for both distance and near vision?
• What is the palpebra commonly known as?
• What does the use of monovision imply for a patient's vision correction?
• What are the three main layers of the eye called?
• What is the term for the curve used as a base of a series of powers or the degree of curvature of the front surface of a lens?
• What is the role of the iris in the eye?
• Which type of optical defect causes difficulty in seeing fine details?
• What term describes light rays that proceed outward from a point?
• Which hand tool is useful for examining the sclera to detect the presence of ocular tumors?
• What action is primarily associated with the superior oblique muscle?
• Which type of tears are produced when the eyes are exposed to irritants?
• Which type of lenses will patients with astigmatism require?
• What characteristic distinguishes emotional tears from other types of tears?
• What are the three types of tears?
• What is hyperopia commonly known as?
• What is the function of the aqueous humor?
• What is ametropia?
• What is described as compound hyperopic astigmatism?
• How many layers are present in the cornea?
• Which of the following tools is designed to isolate the anterior segment of the eye to examine conditions?
• What does the fundus refer to in the context of the eye?
• Which lens type is not defined by the strength of its material?
• What is the term for a raised, wedge-shaped growth of the conjunctiva that extends onto the cornea?
• What is defined as a group of parallel rays of light?
• What is the main component of the fibrous tunic of the eye?
• What is the term for the angle at either end of the slit of the eyelids?
• In multifocal lenses, what does the term 'addition' refer to?
• What is the purpose of the "ADD" value in a contact lens prescription?
• What does the term 'inset' refer to in bifocal lenses?
• Which contact lens features a prescription in the center for distance with alternating rings of power surrounding it?
• During an eye exam, which test is commonly used to assess the shape of the cornea?
• What is the primary function of rods in the retina?
• What effect does AMD have on vision?
• What is the purpose of the conjunctiva?
• What is the condition called when the two eyes fail to simultaneously direct their gaze at the same objects?
• Which condition often leads to blurry vision due to an irregularly shaped cornea?
• What is the limbus in relation to the eye?
• What is the sclera primarily responsible for?
• Which structure is primarily responsible for light perception in the eye?
• What condition is commonly referred to as double vision?
• What muscle is responsible for moving the eye away from the nose?
• Which part of the eye connects the cornea to the sclera?
• Which multifocal contact lens is usually made of rigid (GP) material with the reading portion located at the bottom?
• What is a significant characteristic of Extended Wear (EW) lenses?
• Which fluid-filled chamber is located between the back of the cornea and the front of the iris?
• What is an aberration in optical terms?
• Which condition occurs when the intraocular pressure is too high, affecting both the optic nerve and the images transmitted to the brain?
• Can patients use both soft and rigid materials for multifocal lenses at the same time?
• Amblyopia is commonly referred to as what?
• Which group of structures is part of the vascular tunic of the eye?
• Which tool is used to examine the sclera for ocular tumors?
• What is the primary function of the ciliary muscles?
• What is the purpose of the punctum in the eye?
• What space is located between the back surface of the iris and the front of the lens?
• A chalazion is caused by the blockage of which type of gland?
• What is the role of the aqueous humor?
• Extended Wear (EW) lenses can be worn for:
• Which part of the eye is lacking visual receptors?
• What fluid fills the space between the lens and the retina?
• Which type of vision is particularly affected by presbyopia?
• What device is used to manually determine refraction for vision correction?
• Which tool consists of a transparent solid with two nonparallel plane faces and is used to change light's direction?
• Which layer of the eye is rich in blood vessels and nourishes the retina?
• What is the focus in optics?
• How is myopia corrected?
• What condition is characterized by inflammation of the eyelids?
• What is described as the "white" part of the eye, providing protection along with the cornea?
• In contact lens prescriptions, what does "OD" signify?
• What is a caliper used for in optometry?
• Which muscle's primary function is to move the eye upward?
• What is the primary action of the inferior oblique muscle in the eye?
• What does the palpebral fissure refer to?
• Which tool allows the examination of the interior of the eye, specifically the retina?
• Which contact lens has a gradual power change from the most plus (the add power) in the center of the lens to the distance prescription located near the edge of the lens?
• The need for flexible wear contact lenses indicates that:
• What is meant by the term orbit?
• Which structure provides the eye its power of accommodation and has a power of approximately 17 diopters?
• What type of vision do rods primarily provide?
• Which of the following is the major refracting body of the eye giving it the power of accommodation?
• Which layer of the eye is responsible for absorbing excess light and preventing internal reflection?
• What is a common feature of monovision design lenses?
• What is the retina's main function in vision?
• What is the primary function of the optic nerve?
• What is a common feature of a multifocal contact lens?
• Which of the following best describes aniseikonia?
• What does the term 'lacrimal' pertain to?
• What structure surrounding the lens connects the choroid and iris?
• Which of the following best describes Photophobia?
• Which part of the eye is primarily responsible for transmitting visual information to the brain?
• What shape does a meniscus lens have?
• Which of the following is the best definition of integrity?
• Which structure is responsible for adjusting the focus of light on the retina?
• What does the term axis refer to in a spherocylindrical lens?
• What does "pseudophakia" refer to?
• What is a stye?
• Which part of the eye is known as the first refracting body?
• What is the primary purpose of cycloplegic drops in optometry?
• What is the approximate focal power of the crystalline lens?
• What are refractive errors?
• Myopia is also known as which of the following?
• What characterizes an aspheric lens design?
• What is the pupil’s function in the eye?
• What does 'far point' refer to in ocular physiology?
• Which part connects the crystalline lens to the ciliary muscles?
• Do both the upper and lower eyelids have a punctum?
• What defect in a lens causes straight lines to appear curved?
• What tool shines a beam of light onto the retina to allow the OD to examine its movement?
• What is the term for the inability to distinguish shades of color?
• What does binocular vision refer to?
• What is the primary function of cones in the retina?
• What does the canthus refer to in an eye examination?
• What does AMD stand for, and what does it affect?
• What does the term 'base' refer to when discussing prisms?
• Daily lenses should be:
• What type of lens might a presbyopic patient select if they prefer to avoid glasses during sports?
• What happens with orders for non-stocked contact lenses?
• What does "B.C." indicate in a contact lens prescription?
• Which type of tear helps maintain a stable tear film on the eyes?
• What does the mucin layer of the tear film assist with?
• What measurement is crucial for fitting monocular lenses?
• What does a prism diopter measure?
• Flexible Wear (FW) lenses can be worn as:
• Which part of the eye is primarily involved in color vision?
• What does the base curve of a lens determine?
• What is the best way to show respect?
• Are multifocal lenses available in both soft and rigid gas permeable (RGP) materials?
• Are toric lenses available in multifocal lens designs?
• What does the vitreous humor do in the eye?
• What does the apex of a prism refer to?
• How does monovision contact lens fitting work?
• Which structure gives the eye its color?
• What does compound myopic astigmatism result in?
• What is the term for the mucous membrane lining the inside of the eyelids?
• Patients wearing monovision contacts may have difficulty with:
• What is the primary role of the pupil in eye function?
• Which abbreviation in a contact lens prescription represents the left eye?
• What defines astigmatism?
• Which type of lens structure is defined by having the highest index of refraction at 1.523?
• In a segment bifocal, where is the reading portion typically located?
• What does the "CYL" value represent in a contact lens prescription?
• What is visual acuity?
• What does the iris do in response to light changes?
• A short eyeball or weak lens results in what refractive error?
• What is the main function of the ciliary body?
• What is the main function of the conjunctiva in the eye?
• What is the term for paralysis of the ciliary body?
• What is the function of the ciliary body in the eye?
• What is the ideal design for presbyopia patients?
• What is the role of the cornea?
• What is a toric contact lens designed for?
• Which design typically has the distance power in the center?
• What is the significance of the measurement in "ADD" for patients?
• What is the significance of measuring the deviation of light in prism diopters?
• What is the function of the vascular tunic in the eye?
• Daily Wear contact lenses can typically be worn:
• What characterizes glaucoma?
• Which component of an eye test measures the pressure inside the eye?
• Which type of contact lens is known for its ability to correct astigmatism?
• What is a common symptom of blepharitis?
• Pertaining to vision, "binocular" refers to which of the following?
• Which part of the eye is primarily responsible for focusing light on the retina?
• What is the name of the condition characterized by a gradual loss of central vision?
• What is found in the posterior chamber of the eye?
• What is the primary reason to have patients remove their contacts before the 3-in-1 testing?
• What is the primary symptom of diabetic retinopathy?
• What characterizes a pterygium?
• What is the Fovea Centralis most associated with?
• What type of tears are produced in response to strong emotions?
• What does the term 'transposition' refer to in eye care?
• What is the function of the optic disk?
• What is the term for the part of the retina where the optic nerve enters, creating a blind spot?
• In the Contact Lens Reference Guide (CLRG), what does WD stand for?
• What is required to help individuals with aniseikonia?
• Which layer of the tear film is responsible for keeping tears from evaporating too quickly?
• Which of the following is an eye condition linked to sun exposure?
• Which type of glass has a high refractive index of 1.65 and contains lead?
• What is an aspheric lens design intended to improve?
• Which term describes the process of determining refractive errors of the eye?
• What does strabismus refer to?
• What is the term used for the thickest edge of a prism?
• What unit is used to measure the refractive power of a lens?
• In contact lens prescriptions, what does the term "Brand" refer to?
• What characterizes chromatic distortion in optics?
• Which layer of the tear film is responsible for nourishing the eye tissue?
• What does anisometropia refer to?
• When first interacting with a Patient, should you introduce yourself as the Certified Optometric Technician?
• Do multifocal contacts come in materials other than RGP?
• Which condition, typically appearing after age 35, results in the gradual loss of accommodation?
• Which lens type is primarily made of rigid material but features a reading portion?
• Why might a presbyopic patient prefer an aspheric multifocal contact lens?
• What is the definition of the base curve in relation to contact lenses?
• What is periorbital cellulitis?
• Which condition is characterized by uneven tracking of the eyes?
• Daily Wear (DW) lenses should typically be worn for no more than:
• Does the Optic Nerve take impulses from the retina to the brain?
• What type of lens design places near power in the center?
• What is the primary function of basal tears?
• What term refers to a blind area of reduced vision in the visual field?
• What are iseikonic lenses designed to correct?
• What measurement is associated with the "AXIS" in contact lens prescriptions?
• Which of the following are one of the five membranes of the cornea?
• What characterizes segmented multifocal contacts?
• What is the term for the distance between the centers of the pupils, whether in distance or near positions?
• In the context of contact lens prescriptions, what does "Plano" mean?
• What is an Ophthalmic Slit Lamp primarily used for during an eye exam?
• When referring to lenses, what does the term "extorsion" mean in relation to movement?
• What must patients wearing contacts do before performing the 3-in-1 diagnostic tests?
• What is the focal power of the cornea?
• Accommodation refers to which ability of the eye?
• What additional procedure should be recommended in the pre-test room if a patient informs you that they have a family history of glaucoma?
• What is presbyopia primarily associated with?
• Which area of the retina is known for having a dense concentration of blood vessels and cones?
• What is the primary characteristic of a hyperopic eye?
• What fluid provides nutrients for the lens and posterior cornea and maintains intraocular pressure?
• What is the term for the contact lens fitting where the dominant eye is fitted for distance and the non-dominant eye for near vision?
• What is the aqueous humor's role in the eye?
• What is the name of the clear, gelatinous substance that fills the space between the lens and the retina?
• What is the main function of the extraocular muscles?
• What role does the retina play in the eye?
• Which of the following is a type of multifocal lens design?
• What action does the inferior rectus muscle perform?
• What is the primary function of a retinoscope in optometry?
• What does a concentric design feature in its lens structure?
• When is it necessary for an optician to troubleshoot a problem before sending the patient back to see the OD?
• What does the term monocular refer to in optometry?
• In plus lenses, the focus is referred to as what kind of focus?
• Which of the following designs has a bull's eye-like prescription layout?
• What additional power do Multifocal lenses provide for presbyopia correction?
• What is the term for inflammation of the eyelids, usually caused by malfunctioning oil glands?
• What is the primary role of basal tears?
• What is the term for a swollen, reddish bump on the eyelid caused by a bacterial infection of a Meibomian gland?
• What is diabetic retinopathy primarily caused by?
• What type of power change is characteristic of aspheric lens designs?
• What is the term for the border or margin where the cornea meets the sclera?
• What is the purpose of the Contact Lens Parameter Guide (CLPG)?
• On a prescription, what does the abbreviation BID stand for?
• What instrument is best for measuring the thickness of a lens?