Astigmatism and Presbyopia Flashcards
The ciliary muscle is the __________ muscle.
Autofocus
True or False. Presbyopia is a disease.
False
True or False. 90% of the population will eventually experience the loss of accommodation.
False
It is the lens-based theory.
H-H-G theory
It is a classification of Presbyopia in which the accommodative amplitude is gradually declining
Functional Presbyopia
It is a condition that affects everyone at a certain age.
Presbyopia
It is the loss of accommodation inside the eye.
Presbyopia
This condition usually starts at the age of 40 or as early as 38.
Presbyopia
It is the inability of the human eye to focus on the object up close that results with aging.
Presbyopia
also known as the “short-arm syndrome”
Presbyopia
In D-D-F theory, the reduced amplitude is due to what?
weakening of ciliary muscle
This classification is the borderline or the pre-presbyopia.
Incipient Presbyopia
This condition can still be overcome by forced ciliary effort.
Facultative Presbyopia
True or False. Scleral expansion is part of Optometric management.
False
True or False. Males are more prone to developing astigmatism.
False
True or False. Infants are born with ATR astigmatism, where the lens is the source of astigmatism.
False
Clinically, if astigmatism is small, the patient will notice blur.
False
Types of contact lenses for patients with astigmatism.
Toric soft and Toric RGP
What are the types of Astigmatic charts?
Clock dial and Fan dial
True or False. Retinoscopy is a type of clinical tests for Presbyopia.
False
True or False. Cylindrical lenses are for compound astigmatism.
False
It is the medical term for “ocular fatigue”
Asthenopia
True or False. Distorted vision at distance and near is one of the symptoms of having presbyopia.
False
It is a type of astigmatism where the curvature of any meridian is not uniform.
Irregular astigmatism
When two principal meridians are not perpendicular to each other.
Irregular astigmatism
What does OBL stand for?
Oblique
Total Astigmatism is the sum of?
corneal + residual
True or False. Older adults show a shift towards WTR astigmatism
False
Give at least two symptoms for astigmatism.
Headaches and letter confusion
What type of spectacle do we dispense for patients with astigmatism?
Single vision glasses with cylinder
