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OCT (OPTICAL COHERENCE TOMOGRAPHY) EXAM
/230 QUESTIONS AND ANSWERS|
NEW 2025-2026|A+GRADE
Optical Coherence Tomography Scanner (OCT) ANS:->>> non-contact, non- invasive method of obtaining cross-sectional retinal images. Provides ocular diagnostic information. Specialists can more specifically diagnose, treat and manage vitreoretinal diseases and glaucoma with detailed, quantifiable images of underlying retinal structures Optometrist ANS:->>> State License independent primary health care provider who examines, diagnoses, treats, and manages disease and disorders of the visual system, and the associated structures as well as diagnoses related systemic conditions. Optometrist requirements ANS:->>> ⬛✓Completion of a 4 - year degree is followed by four years of education and training from an accredited optometry school = OD. This may be followed by a postgraduate training residency but is not required for licensure.
Ophthalmologist ANS:->>> ⬛✓Physician (Doctor of Medicine, MD; doctor of osteopathy, DO) who specializes in medical and surgical care of the eye and visual system and in the treatment of eye disease and injury.
for diagnoses purposes, and performing a variety of clinical skills. They do not make surgical or medical diagnoses. Not licensed as independent practitioners. Optician ANS:->>> Prepares or dispenses eyeglasses, spectacles, lenses, or related optical devises upon Rx. Duplicates, measures, adapts, fits and adjusts eyeglasses or lenses to the face. Makes, verifies and delivers lenses, frames, and other specially fabricated optical devises upon Rx.
Optician requirements ANS:->>> ✓⬛ May be apprenticeship trained or attend community college program. Some states require opticians to be licensed. An optometrist is licensed by which governing body? A. State B. Federal C. County D. Dept. of Law and Public Affairs ANS:->>> ✓ ⬛ A. State The person generally responsible for grinding or duplicating lenses is A. Optometrist B. Optician C. Ophthalmologist C. Oculist ANS:->>> ✓⬛ B. Optician A doctor of medicine specializing in surgery is A. Optometrist B. Optician C. Ophthalmologist D. OMP ANS:->>> ⬛✓C. Ophthalmologist Ophthalmic Medical Personnel can do all BUT the following A. Administer tests B. Take eye measurements C. Take patient histories D. Offer medical diagnoses ANS:->>> D. Offer medical diagnoses
What is the most straight forward type of filing system? ANS:->>> ⬛✓ ⬛ Alphabetical
Which is not part of implementing HIPAA? A. Identify those in your office whop need access to PHI to do their JOB B. Further identify anyone else who may need access C. Create policies and procedures for routine disclosures to achieve purpose of disclosure D. Unlimited PHI disclosure for staff developing criteria ANS:->>> C. Create policies and procedures for routine disclosures to achieve purpose of disclosure Lacrimal Gland ANS:->>> ⬛✓the gland that supplies most of the tears to the eye. Located superior and temporal to the eye and behind the orbital rim Lacrimal Duct ANS:->>> ⬛✓⬛ the drainage system for tears. As tears are produced by the lacrimal gland, they drain through the lacrimal duct to reach the surface of the eye Nasolacrimal Duct ANS:->>> ⬛✓⬛ the drainage system for the tears to leave the eye. It is connected to the nasal passage. This is why the nose runs when one cries
Orbit ANS:->>> ⬛✓⬛ the bony socket that contains the eye and most of its accessory organs. The roof, medial wall and floor are very thin and can be easily damage by injury, infection or tumors Sinuses ANS:->>> ⬛✓air spaces within the bones. Poor drainage, infection, or cancerous enlargement of the sinuses may cause headaches, pain around eye, or pain from behind the eye Conjunctiva ANS:->>> the clear, cellophane-like tissue that covers the sclera and the inside surface of the eyelids. Palpebral Conjunctiva ANS:->>> ✓⬛ Lines the lids Bulbar Conjunctiva ANS:->>> ⬛✓Covers the sclera Cornea ANS:->>> ⬛✓the clear, transparent tissue which is located on the very anterior portion of the eye. Most powerful refractive media of the eye. Provides most of the eye's ability to focus light. It is avascular. A slight furrow marks its
junction with the sclera. It has 5 layers. Cornea's 5 Layers (front to back) ANS:->>> ⬛✓1. Epithelium
Crystalline lens ANS:->>> ⬛✓provides focusing power to the eye. Allows for adjustment of the eye to focus from distance to near (accommodation). The second most powerful refractive medium. Held in place by ciliary body (ligaments) Ciliary Muscles ANS:->>> ⬛✓the muscle inside the eyeball which alters the shape of the crystalline lens. It has direct control over the focusing ability of the eye Accommodation ANS:->>> ⬛✓The focusing ability of the eye Posterior Chamber ANS:->>> ⬛✓the area located inside the eye, behind the iris and in front of the lens Retina ANS:->>> ⬛✓⬛ the seeing part of the eye. Lines the sclera and is the place where light coming into the eye is focused. Images that fall on the nerve cells of the retina are then transmitted to the brain where they are interpreted
Choroid ANS:->>> ⬛✓consists primarily of blood vessels that nourish the retina so it can continue to function. It is between the sclera and the retina
Fundus ANS:->>> ⬛✓the bottom or base of an organ, or the part of a hollow organ farthest from the mouth. In eye care, fundus refers to the interior surface of the eyeball
Extraocular Muscles ANS:->>> ⬛✓the 6 muscles attached to the sclera from the bones surrounding the eye that serve to aim the eye in the direction we wish to look. The 6 Extraocular Muscles ANS:->>> ✓⬛ 1. Medial Rectus
- Inferior Rectus
- Lateral Rectus
- Superior Rectus
- Superior Oblique
- Inferior Oblique Medial Rectus ANS:->>> ⬛✓the most powerful of the extraocular muscles. Its only action is to turn the toward the nose (adduction) Inferior Rectus ANS:->>> ⬛✓its primary action is to turn the eye downward (depression). It also adducts the eye. Additionally, it can rotate the top of the eye toward the temple and the bottom of the eye toward the nose (extortion)
The choroid consists primarily of blood vessels that nourish the: ANS:->>> ⬛✓ ⬛ Retina The is the area located inside the eye, behind the iris and in front of the lens ANS:->>> ✓⬛ Posterior chamber The area of the macula where visual acuity is the sharpest and is used for daytime and color vision is called the: ANS:->>> ⬛✓Fovea centralis Case history includes: ANS:->>> ⬛✓demographic information as well as questions about the primary or most important reason for the patient's visit (chief complaint). Also includes a review of the patient's eye and general health as well as that of their immediate family Visual Acuity ANS:->>> ⬛✓⬛ a measure of the finest detail the eye can detect. Most often distance vision is measured by Snellen letters (Snellen fraction) Snellen Fraction ( 2 0/20) ANS:->>> ✓⬛ The numerator is the testing distance which is typically 20 feet. The denominator represents the distance at which that letter is supposed to be read
Keratrometry ANS:->>> ⬛✓⬛ Measures the curvature of the cornea and also determines the focusing power of the cornea. Allows for an estimate if the focusing power of the cornea, the amount of astigmatism present, and give an evaluation of the integrity of the front surface of the eye. Keratometric measurements are used in estimating the base curve of contact lenses Topographer ANS:->>> ✓⬛ Analyzes the radius of curvature and the refractive power at thousands of points across the cornea. Measures thousands of points located within 3mm of the optic zone. Ability to evaluate refractive problems that might be present in the cornea. Used for screening patients before refractive surgery, for fitting contact lenses, adjusting post surgical corneal transplants, and diagnosing refractive disorders and diseases. Retinoscopy ANS:->>> ✓⬛ an objective measure of the refractive power of the eye. Shines a light from the retinoscope into the eye and observes the reflex seen in the pupil. By analyzing the reflex, the examiner can place lenses in front of the eye to determine the patien's Rx. This is an objective test Subjective Refraction ANS:->>> ⬛✓⬛ uses the patient's response to determine the best correction. Using a phoropter that contains lenses that can be used to
