COA LATEST STUDY EXAM PAPER QUESTIONS AND
ANSWERS SURE A+
✔✔What should be used to clean the accessible lenses of a phoropter? -
✔✔Photographic lens cleaner and lens tissue
✔✔What size letters (optotypes) are typically used to calibrate visual acuity projectors?
- ✔✔20/200
✔✔What is the name of the instrument used to neutralize lenses? - ✔✔Lensometer
(Lensmeter)
✔✔When recording prism in a spectacle Rx, what does the abbreviation BO stand for? -
✔✔Base out
✔✔What is determined by focusing the thin lines in a manual lensometer? - ✔✔The
sphere of the spectacle Rx is determined by the thin lines.
✔✔What is the first step in performing lensometry? - ✔✔Focus the eyepiece.
✔✔If you cannot center the thick and thin lines in the lensometer, the lens has _______.
- ✔✔Ground-in prism.
,✔✔Each black ring seen in the lensometer eyepiece reticle measures how much prism?
- ✔✔1 diopter for each ring
✔✔When performing lensometry, what is indicated if both thin and wide lines are in
focus at the same time? - ✔✔The lens is spherical.
✔✔What is the technique used to measure the radius of curvature of the anterior
corneal surface? - ✔✔A-Scan Keratometry Length Measurements
✔✔Keratometry is performed with a device called a ______. - ✔✔Keratometer or
ophthalmometer
✔✔Give three examples in which a keratometry measurement would be useful. -
✔✔Contact lens fitting, refractive surgery, intra ocular lens calculations, keratoconus
✔✔Keratometry is measured in _______. - ✔✔Diopters
✔✔An unfocused eyepiece can lead to an error of _______. - ✔✔1 diopter in the K
reading
✔✔How many meridians are measured in keratometry? - ✔✔2 meridians (usually 90
degrees apart)
✔✔The average K reading is _____. - ✔✔43 to 44 diopters
✔✔Keratometry measures the _______ of the anterior curvature of the cornea. -
✔✔Central 3.3 mm
✔✔The diffusion of oxygen through a contact lens material is referred to as _______. -
✔✔DK value
✔✔True or false: The application and evaluation of diagnostic lens on the eye is the
best way to fit a contact lens. - ✔✔True
✔✔Name the instrument used to determine the posterior surface radius of curvature of
the rigid contact lens? - ✔✔Radiuscope and or Contacto Gauge
✔✔Name three reasons to dispense a therapeutic bandage contact lens. - ✔✔To
protect cornea from eyelids and eyelashes, to promote corneal healing, to provide
comfort, to stop wound leaks, to improve vision, or for drug delivery.
✔✔Name two measurements required to fit a contact lens. - ✔✔Refraction and K-
reading (keratometry)
, ✔✔Overwear of contact lenses may result in insufficient oxygen to the cornea called
_______. - ✔✔Hypoxia Ophthalmia
✔✔What are Ethics? - ✔✔Moral Principles and values that govern individual behavior
✔✔What must ophthalmic medical assistants abide by? - ✔✔The laws of the state in
which their employer practices and under the service of a licensed ophthalmologist
✔✔Attempting to work independently of an ophthalmologist is considered _______. -
✔✔Practicing medicine without a license
✔✔What should an ophthalmic practice have in place to meet legal compliance? - ✔✔A
compliance officer, policies and procedures
✔✔What is HIPAA? - ✔✔Health Insurance Portability and Accountability Act
✔✔What does HIPAA protect? - ✔✔The dissemination of specific patient information
✔✔What is coding? - ✔✔The application of numerical designations for medical
diagnosis, procedures, and services
✔✔What is the assessment of the use of services by a practice institution, clinic, or
individual physician? - ✔✔Utilization review
✔✔Complete the statement: "If it isn't documented, _____." - ✔✔It didn't happen
✔✔What is ICD - 9 - CM? - ✔✔International Classification of diseases, ninth revision,
clinical modification
✔✔What important process is documented when the physician or physician delegate
educates the patient on the risks, benefits, and alternatives of a surgical procedure and
asks for the patient's understanding and participation in the decision making process? -
✔✔Informed consent
✔✔As an ophthalmic assistant, you will record your findings in what legal document? -
✔✔The patient's medical record
✔✔How should an ophthalmic assistant treat all patients? - ✔✔With dignity and respect
✔✔The common causes of eye infections are _______, _______, and _______. -
✔✔Bacterial, viral, and fungal
ANSWERS SURE A+
✔✔What should be used to clean the accessible lenses of a phoropter? -
✔✔Photographic lens cleaner and lens tissue
✔✔What size letters (optotypes) are typically used to calibrate visual acuity projectors?
- ✔✔20/200
✔✔What is the name of the instrument used to neutralize lenses? - ✔✔Lensometer
(Lensmeter)
✔✔When recording prism in a spectacle Rx, what does the abbreviation BO stand for? -
✔✔Base out
✔✔What is determined by focusing the thin lines in a manual lensometer? - ✔✔The
sphere of the spectacle Rx is determined by the thin lines.
✔✔What is the first step in performing lensometry? - ✔✔Focus the eyepiece.
✔✔If you cannot center the thick and thin lines in the lensometer, the lens has _______.
- ✔✔Ground-in prism.
,✔✔Each black ring seen in the lensometer eyepiece reticle measures how much prism?
- ✔✔1 diopter for each ring
✔✔When performing lensometry, what is indicated if both thin and wide lines are in
focus at the same time? - ✔✔The lens is spherical.
✔✔What is the technique used to measure the radius of curvature of the anterior
corneal surface? - ✔✔A-Scan Keratometry Length Measurements
✔✔Keratometry is performed with a device called a ______. - ✔✔Keratometer or
ophthalmometer
✔✔Give three examples in which a keratometry measurement would be useful. -
✔✔Contact lens fitting, refractive surgery, intra ocular lens calculations, keratoconus
✔✔Keratometry is measured in _______. - ✔✔Diopters
✔✔An unfocused eyepiece can lead to an error of _______. - ✔✔1 diopter in the K
reading
✔✔How many meridians are measured in keratometry? - ✔✔2 meridians (usually 90
degrees apart)
✔✔The average K reading is _____. - ✔✔43 to 44 diopters
✔✔Keratometry measures the _______ of the anterior curvature of the cornea. -
✔✔Central 3.3 mm
✔✔The diffusion of oxygen through a contact lens material is referred to as _______. -
✔✔DK value
✔✔True or false: The application and evaluation of diagnostic lens on the eye is the
best way to fit a contact lens. - ✔✔True
✔✔Name the instrument used to determine the posterior surface radius of curvature of
the rigid contact lens? - ✔✔Radiuscope and or Contacto Gauge
✔✔Name three reasons to dispense a therapeutic bandage contact lens. - ✔✔To
protect cornea from eyelids and eyelashes, to promote corneal healing, to provide
comfort, to stop wound leaks, to improve vision, or for drug delivery.
✔✔Name two measurements required to fit a contact lens. - ✔✔Refraction and K-
reading (keratometry)
, ✔✔Overwear of contact lenses may result in insufficient oxygen to the cornea called
_______. - ✔✔Hypoxia Ophthalmia
✔✔What are Ethics? - ✔✔Moral Principles and values that govern individual behavior
✔✔What must ophthalmic medical assistants abide by? - ✔✔The laws of the state in
which their employer practices and under the service of a licensed ophthalmologist
✔✔Attempting to work independently of an ophthalmologist is considered _______. -
✔✔Practicing medicine without a license
✔✔What should an ophthalmic practice have in place to meet legal compliance? - ✔✔A
compliance officer, policies and procedures
✔✔What is HIPAA? - ✔✔Health Insurance Portability and Accountability Act
✔✔What does HIPAA protect? - ✔✔The dissemination of specific patient information
✔✔What is coding? - ✔✔The application of numerical designations for medical
diagnosis, procedures, and services
✔✔What is the assessment of the use of services by a practice institution, clinic, or
individual physician? - ✔✔Utilization review
✔✔Complete the statement: "If it isn't documented, _____." - ✔✔It didn't happen
✔✔What is ICD - 9 - CM? - ✔✔International Classification of diseases, ninth revision,
clinical modification
✔✔What important process is documented when the physician or physician delegate
educates the patient on the risks, benefits, and alternatives of a surgical procedure and
asks for the patient's understanding and participation in the decision making process? -
✔✔Informed consent
✔✔As an ophthalmic assistant, you will record your findings in what legal document? -
✔✔The patient's medical record
✔✔How should an ophthalmic assistant treat all patients? - ✔✔With dignity and respect
✔✔The common causes of eye infections are _______, _______, and _______. -
✔✔Bacterial, viral, and fungal
