Random knowledge Flashcards
Average axial length?
24 mm
What is the mag through a DO for an emmetrope?
15X
M= D/4
D= 60 diopters
60/4 =15X
Actions of Superior rectus
- Elevation
- Incyclotorsion
- AD-duction
Actions of Inferior rectus
- Depression
- Excyclotorsion
- AD-duction
Actions of superior oblique
- Incyclotorsion
- Depression
- AB-duction
Legal blindness based upon visual fields definition
Visual field is restricted to 20 degrees (patient can only see within this angle of their vision)
- Widest field diameter subtends an angle no greater than 20 degrees, meaning they can only see up to 20 degrees, outside of that they have little to no vision
What are risk factors for COPD?
Frequent childhood infections
Low birth weight
Alpha-1 antirypsin deficiency
Prevalence
Number of individuals afflicted with a condition within a certain population at a given time (regardless if cases are new or not)
Incidence
Number of NEWLY diagnosed cases of a conditions within a specific population in a given time period
32 Hispanic male
MHx: AIDS with CD 4 count 42 cells/mm3, viral load 110,000 copies/ml
CMV: cytomegalovirus
* most common ocular opportunistic infection in AIDS patients
True or false
For OD, providers must not share treatment records with patient’s health insurance plan when patient pays out of pocket for treatment
True
Inheritance pattern for Aniridia
Autosomal dominant
Inheritance pattern of Stargardt
Autosomal recessive
Inheritance pattern for choroideremia
X-linked recessive
*females are carriers
What ingredients in artificial tears most likely help relive patient symptoms of dry eyes caused by MGD?
Emollient
* help increase lipid layer to minimize dry eyes caused due to evaporative loss
* mineral oil, lanolin and petroleum