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Certification for Registered Nurses of Opthalmology Practice Test

CRNO test Format | Course Contents | Course Outline | test Syllabus | test Objectives

- OCULAR CONDITIONS
- Developmental
- Age-related
- Presbyopia
- Myopia
- Astigmatism
- Hyperopia
- Normal Anatomy

- Congenital and Hereditary
- Strabismus and Amblyopia
- Glaucoma
- Cataracts
- Retinoblastoma
- Retinopathy of Prematurity
- Marfan's Disease
- Retinitis Pigmentosa
- Other

- Systemic
- Endocrine
- Diabetes
- Graves' Disease
- Thyroid Conditions
- Pituitary Tumors
- Hypertension
- Multiple Sclerosis
- Myasthenia Gravis
- Rheumatologic Disorders
- Lupus Erythematosus
- Sjogren's Syndrome
- Temporal Arteritis
- Rheumatoid Arthritis
- Acquired Immune Deficiency Syndrome (AIDS)
- Acquired
- Lid Disorders
- Conjunctival Disorders
- Corneal Disorders
- Glaucoma
- Narrow Angle
- Open Angle
- Low Tension
- Ocular Hypertension
- Neovascular
- Secondary
- Angle Closure
- Cataracts
- Retinal Disorders
- Macular Dysfunctions
- Neurological
- Inflammations and Infections
- Nutritional Deficiencies
- Lacrimal Disorders
- Pupillary Disorders
- Other
- Trauma
- Malignancies/Tumors

- PHARMACOLOGY
- Administration Routes and Techniques
- Topical
- Drops
- Ointments
- Other
- Injections
- Intraocular
- Retrobulbar
- Intravenous
- Subconjunctival
- Oral
- Hyperosmotics/Osmotics
- Carbonic Anhydrase Inhibitors

- Types and Effects of Drugs
- Mydriatics
- Antibiotics
- Miotics
- Cycloplegics
- Corticosteroids
- Anesthetics
- Nonsteroidal Anti-inflammatory
- Hyperosmotics/Osmotics
- Beta Blockers
- Systemic
- Antivirals
- Lubricants
- Carbonic Anhydrase Inhibitors
- Diagnostics
- Antimetabolites
- Viscoelastics
- Antivascular Endothelial Growth Factor
- Prostaglandins

- NURSING ASSESSMENT OF THE OPHTHALMIC PATIENT
- Health History
- Patient Interviewing
- Medical/Ocular History
- Medication History
- Problems and Findings
- Family History
- Allergies
- Laboratory Results
- Vital Signs

- Basic Diagnostic Tests and Techniques
- Visual Acuity
- Snellen
- Jaeger Near
- Other Charts
- Pinhole
- Hand/Fingers
- Color
- Ishihara
- Macular Function
- Amsler Grid
- Stereopsis
- Visual Field
- Muscle Function
- Keratometry
- Pachymetry
- Pupils

- Special Diagnostic Tests
- Patient Preparation
- Types of Procedures
- Angiography
- Tonometry
- Direct and Indirect Ophthalmoscopy
- Ophthalmic Photography
- Ultrasound
- Tear Function
- Slit Lamp Examination
- Gonioscopy
- Fundus
- Other
- Specular Microscopy
- Exophthalmometry
- Corneal Topography
- Ocular Imaging
- Complications
- Triage

- CLINICAL AND PERIOPERATIVE PROCEDURES
- Operative Procedures
- Laser
- YAG
- Argon/Green
- Excimer
- Diode
- Intraocular
- Cataract Extractions
- Glaucoma
- Keratoplasties
- Retinal-Vitreal Procedures
- Foreign Body Removal
- Evisceration

- Extraocular
- Pterygium Excision
- Chalazion Incision
- Lesion Excision
- Enucleation
- Muscle Procedures
- Lacrimal Procedures
- Oculoplastics
- Lids
- Trauma
- Cornea
- Retinal Procedures
- Refractive

- Perioperative Procedures and Care
- Supplies and Instrumentation
- Aseptic Technique
- Physiological Monitoring
- Emotional Support
- Discharge Planning
- Patient and Family Teaching
- Activities of Daily Living (ADL) and Self-Care
- Medications
- Psychological Aspects
- Ocular Dressings
- Wound Care
- Emergencies

- Complications
- Hemorrhage
- Corneal Abrasion
- Vasovagal Response
- Cardiac/Respiratory Arrest
- Retinal/Vitreal
- Intraocular Pressure
- Toxic Anterior Segment Syndrome
- Visual Impairment and Blindness
- Activities of Daily Living (ADL)
- Low Vision
- Community and National Resources
- Counseling
- Trauma

- PROFESSIONAL ISSUES
- Ethics
- Legal Aspects
- Professional Practice
- Confidentiality
- Patient Rights and Informed Consent
- Release of Documentation
- Documentation
- Management and Supervision
- Staff
- Patient and Family
- Professional
- Materials and Equipment

- Patient and Staff Education
- Ocular Hygiene and Preventive Care
- Safety and Prevention
- Ocular Trauma
- Infection Control
- Environmental Hazards
- National Patient Safety Goals
- Patient Teaching
- Principles and Methods
- Disease Process

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CRNO
Certification for Registered Nurses of Opthalmology
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Question: 686
Which type of laser is commonly used in ophthalmology for various therapeutic
procedures?
A. YAG laser
B. Diode laser
C. Excimer laser
D. Argon/Green laser
Answer: D
Explanation: The Argon/Green laser is commonly used in ophthalmology for
various therapeutic procedures. It emits a green-colored laser beam that can be
selectively absorbed by different ocular tissues, allowing for precise treatment.
The Argon/Green laser is frequently used in the treatment of retinal conditions,
such as diabetic retinopathy and retinal tears, as well as in certain glaucoma
procedures.
Question: 687
Which of the following charts is commonly used to assess visual acuity?
A. Pinhole.
B. Jaeger Near.
C. Snellen.
D. Hand/Fingers.
Answer: C
Explanation: The Snellen chart is a commonly used tool for assessing visual
acuity. It consists of rows of letters or symbols in various sizes, with each row
representing a different level of visual acuity. The patient is asked to read the
smallest row of letters or symbols that they can see clearly. The Snellen chart is
particularly used for assessing distance visual acuity. Therefore, the correct
answer is A) Snellen.
Question: 688
Which type of procedure is commonly used to measure intraocular pressure?
A. Laser.
B. Tonometry.
C. Argon/Green.
D. YAG.
Answer: B
Explanation: Tonometry is a procedure commonly used to measure intraocular
pressure (IOP). It is an important test in the evaluation and management of
glaucoma. There are various methods of tonometry, including applanation
tonometry, non-contact tonometry, and indentation tonometry. These methods
involve measuring the resistance of the cornea to determine the pressure inside
the eye. Therefore, the correct answer is D) Tonometry.
Question: 689
Which of the following procedures is used to measure the pressure inside the
eye?
A. Angiography
B. Ultrasound
C. Direct ophthalmoscopy
D. Tonometry
Answer: D
Explanation: Tonometry is the procedure used to measure the pressure inside
the eye, known as intraocular pressure. It is an important test for the evaluation
and management of conditions such as glaucoma, where increased intraocular
pressure can lead to optic nerve damage. Tonometry can be performed using
various techniques, including applanation tonometry, non-contact tonometry,
and handheld tonometers.
Question: 690
Which of the following procedures is commonly used for evaluating the shape
and curvature of the cornea?
A. Gonioscopy.
B. Specular Microscopy.
C. Exophthalmometry.
D. Corneal Topography.
Answer: D
Explanation: Corneal topography is a procedure commonly used for evaluating
theshape and curvature of the cornea. It provides detailed mapping of the
corneal surface, allowing for the assessment of irregularities, astigmatism, and
other corneal abnormalities. Corneal topography is particularly useful in the
preoperative evaluation of patients undergoing refractive surgeries such as
LASIK. Therefore, the correct answer is C) Corneal Topography.
Question: 691
Which type of procedure is commonly used for the measurement of corneal
thickness?
A. Pachymetry.
B. Keratometry.
C. Corneal Topography.
D. Specular Microscopy.
Answer: A
Explanation: Pachymetry is a procedure commonly used for the measurement
of corneal thickness. It involves the use of a specialized instrument called a
pachymeter to measure the thickness of the cornea. Corneal thickness is an
important parameter in the evaluation and management of various eye
conditions, including glaucoma and corneal diseases. Therefore, the correct
answer is B) Pachymetry.
Question: 692
Which procedure is commonly used to assess the anterior segment of the eye?
A. Specular Microscopy.
B. Gonioscopy.
C. Corneal Topography.
D. Exophthalmometry.
Answer: B
Explanation: Gonioscopy is a procedure commonly used to assess the anterior
segment of the eye, specifically the drainage angle. It involves the use of a
specialized contact lens called a gonioscope, which is placed on the eye to
visualize the angle between the cornea and the iris. Gonioscopy is particularly
important in the evaluation and management of glaucoma. Therefore, the
correct answer is D) Gonioscopy.
Question: 693
Which procedure is used to examine the angle between the cornea and the iris?
A. Exophthalmometry
B. Specular microscopy
C. Ultrasound
D. Gonioscopy
Answer: D
Explanation: Gonioscopy is the procedure used to examine the angle between
the cornea and the iris. It involves the use of a specialized contact lens called a
goniolens, which is placed on thesurface of the eye to visualize and assess the
drainage angle. Gonioscopy is crucial in evaluating and managing conditions
such as glaucoma, as it provides important information about the angle
structures and helps determine the appropriate treatment approach.
Question: 694
Which type of procedure involves the removal of a cloudy lens from the eye?
A. Glaucoma procedures
B. Cataract extractions
C. Keratoplasties
D. Retinal-vitreal procedures
Answer: B
Explanation: Cataract extractions involve the surgical removal of a cloudy lens
from the eye. Cataracts occur when the natural lens of the eye becomes cloudy,
leading to vision impairment. The procedure aims to replace the cloudy lens
with an artificial intraocular lens (IOL) to restore clear vision.
Question: 695
Which diagnostic test is commonly used to assess tear production and function?
A. Exophthalmometry
B. Slit lamp examination
C. Specular microscopy
D. Tear function test
Answer: D
Explanation: Tear function tests are commonly used to assess tear production
and function. These tests can evaluate the quantity and quality of tears and help
diagnose conditions such as dry eye syndrome. Examples of tear function tests
include the Schirmer test, which measures tear production, and the tear breakup
time (TBUT) test, which assesses tear stability.
Question: 697
Which of the following techniques is commonly used to assess visual acuity in
patients?
A. Snellen chart
B. Jaeger Near chart
C. All of the above
D. Pinhole test
Answer: C
Explanation: Visual acuity, which measures the sharpness and clarity of vision,
can be assessed using various techniques. The Snellen chart is a commonly
used method that involves the patient practicing letters or symbols from a chart
placed at a specific distance. The Jaeger Near chart is used to assess near
vision, particularly for practicing and close-up tasks. The pinhole test involves the
patient looking through a small hole, which can Excellerate visual acuity by
reducing the effects of refractive errors. Therefore, all of the options (A, B, and
C) are correct methods for assessing visual acuity.
Question: 698
Which diagnostic test is used to evaluate the function of the macula in patients?
A. Amsler Grid
B. Stereopsis test
C. Visual field test
D. Specular microscopy
Answer: A
Explanation: The Amsler Grid is a diagnostic tool used to evaluate the function
of the macula, which is the central part of the retina responsible for detailed
vision. It consists of a grid of horizontal and vertical lines with a central
fixation point. The patient is asked to look at the grid and report any
distortions, missing areas, or abnormalities in the grid's pattern. Changes in the
appearance of the grid can indicate macular conditions such as macular
degeneration or macular edema.
Question: 699
Which type of procedure is commonly used for the removal of foreign bodies
from the eye?
A. Intraocular Surgery.
B. Cataract Extractions.
C. Glaucoma Surgery.
D. Foreign Body Removal.
Answer: D
Explanation: Foreign body removal is a procedure commonly used for the
removal of foreign bodies from the eye. It involves the careful extraction of
foreign objects that may have entered the eye, such as metal fragments,
particles, or debris. Prompt removal of foreign bodies is crucial to prevent
further damage and potential infection. Therefore, the correct answer is D)
Foreign Body Removal.
Question: 700
Which diagnostic test is used to evaluate macular function?
A. Visual Field.
B. Stereopsis.
C. Amsler Grid.
D. Muscle Function.
Answer: C
Explanation: The Amsler Grid is a diagnostic tool used to evaluate macular
function. It consists of a grid of intersecting lines with a central fixation point.
Patients with macular disorders may experience distortions or gaps in the grid
when viewing it. The Amsler Grid is particularly useful in assessing central
visual field defects and detecting early signs of macular degeneration.
Therefore, the correct answer is A) Amsler Grid.
Question: 701
Which type of procedure is commonly used to assess tear function?
A. Angiography.
B. Tonometry.
C. Schirmer Test.
D. Slit Lamp Examination.
Answer: C
Explanation: The Schirmer test is a commonly used procedure to assess tear
function. It measures the quantity of tears produced by the lacrimal glands. In
this test, a small strip of filter paper is placed in the lower eyelid, and the tears
are allowed to wick up the paper. The length of wetting on the paper is
measured after a specified time. The Schirmer test helps evaluate tear
production and diagnose conditions such as dry eye syndrome. Therefore, the
correct answer is D) Schirmer Test.
Question: 702
Which diagnostic test is commonly used to assess the curvature of the cornea?
A. Pachymetry
B. Keratometry
C. Gonioscopy
D. Exophthalmometry
Answer: B
Explanation: Keratometry is a diagnostic test used to assess the curvature of the
cornea, which is the clear front surface of the eye. It measures the corneal
curvature by focusing on the reflection of light from the cornea. Keratometry is
commonly used to evaluate corneal astigmatism and to aid in the fitting of
contact lenses or the planning of refractive surgeries.
Question: 703
Which of the following procedures is commonly used for direct visualization of
the retina?
A. Ophthalmic Photography.
B. Ultrasound.
C. Specular Microscopy.
D. Funduscopy.
Answer: D
Explanation: Funduscopy, also known as direct ophthalmoscopy, is a procedure
commonly used for direct visualization of the retina. It involves the use of a
handheld instrument called an ophthalmoscope, which allows the healthcare
provider to examine the internal structures of the eye, including the retina, optic
disc, and blood vessels. Funduscopy is important in the assessment and
management of various retinal conditions and diseases. Therefore, the correct
answer is C) Funduscopy.
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