A physical or behavioral condition that increases the probability that an individual will develop a particular condition. Examples are genetic factors, habits, environmental conditions and physiological conditions.
What are Risk Factors?
asking the patient to state his or her full name & date of birth
How to properly identify the patient
the acuteness or sharpness of vision
What is Visual Acuity?
characterized by symptoms that persist for longer than 3 months and show little change over a long time.
What is a Chronic Illness
To measure visual acuity
What is the purpose of the Snellen Test?
2 or more diseases may have similar symptoms
What is a Differential Diagnosis?
A professional who interprets and fills prescriptions for eyeglasses and contact lenses.
What is an Optician?
characterized by symptoms that have a rapid onset, are usually severe and intense and subside after a relatively short time.
What is an Acute Illness
Ensure good natural light or illumination on the chart, Explain procedure to patient, Ask patient to wear current glasses, ask patient to stand 20 ft from chart.
What are the guidelines for performing the Snellen Test?
A licensed primary health care provider who has expertise in measuring visual acuity and prescribing corrective lenses for the treatment of refractive errors.
What is an Optometrist?
A decrease in elasticity of the lens due to aging, causes decreased ability to focus clearly on close objects.
What is Presbyopia?
Used for Little kids, pre-schoolers, Non-English Speakers
When should the Snellen Big E chart be used?
To soften impacted cerumen, to combat infection with the use of antibiotic ear drops, and to relieve pain.
What is the purpose of performing an ear instillation?