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Details

Fundus Examination
BIO, Fundus Biomicroscopy (Contact/Non-Contact) from Dr. Portello
18
Health Care
Professional
12/19/2009

Additional Health Care Flashcards

 


 

Cards

Term

BIO Condensing Lenses:

Power/FOV/Mag/Use

Definition

20D: 37-40° (8DD)/2-2.5x/routine exam

28D: 55° (11DD)/ 1.5x/pediatric exam

14D: 25° (5DD)/ 3.5x/diabetic exam

Term
BIO image
Definition
real, inverted, reversed
Term
Tropicamide
Definition

T: 0.5% or 1%

parasympatholytic (blocks sphincter)

Onset: 20-40min

Duration: 6-8hrs

Side Effects: Ocular = inc IOP, cycloplegia, photophobia

Systemic: HA, tachycardia, dry mouth, psychotic reactions

 

Term

Phenylephrine

 

Definition

PE: 2.5% or 10%

Sympathomimetic (stim dilator)

Onset = 45min

Duration = 6-8hrs

Side Effects: Ocular: pain, lacrimation, keratitis, rebound congestion/miosis

Systemic: cardiovascular effects on Pt taking other sympathomimetics

Term
Paremyd
Definition

Hydroxyamphetamine 1% + T 0.25%

combo sympathomimetic/parasympatholytic

Onset = 15 min

Duration = 90min

Term
Rev-Eyes
Definition

Dapiprazole HCL 0.5%

mydriolytic agent

Onset = 10min

Recovery = 2 hrs

Side Effects: injection, ptosis, lid erythema, lid edema, chemosis, itching, SPK, corneal edema, brow-ache, blur

Term
Retinal Landmarks
Definition
  1. Posterior Pole = optic disc, arcades, macula
  2. Vortex System = ampulla + vortex veins
  3. Equator: 14-15mm fr limbus
  4. Long Ciliary Nerve: 3 & 9 o'clock
  5. Short Ciliary Nerves: 6 & 12 o'clock/throughout
  6. Ora Serrata = ora bays + dentate processes (1mm nasal, 2mm temporal; 24DD from fovea)
Term

Non-Contact Fundus Biomicroscopy Lenses

Power/FOV/Mag/Working distance

Definition

+90 = 89°/0.76x/7mm

+78 = 84°/0.93x/8mm

+60 = 70°/1.15x/13mm

Term
Goldmann 3-mirror
Definition

Hruby Lens: posterior pole

(a) Bullet Mirror: 59°, Anterior (to ora)

(p) Rounded Rectangle: 67°, Periphery

(e) Trapezoidal: 73°, Equator (pp--> eq)

Term
Karickhoff Fundus Lens
Definition

Hruby lens: posterior pole

Mirrors: 62°, 67°, 76°, 80°

 

Mirror images overlap at edges to reduce need to tilt lens

Term
Mainster Fundus Lens Types
Definition
  1. Standard: view pp --> eq; FOV = 90°, Mag = 0.96x
  2. Wide Field: pp --> periph; FOV=125°, Mag=0.68x
  3. High Field: FOV = 75°, Mag = 1.2x

Some require Celluvisc, unless marked NMR

Term
Volk QuadrAspheric Lens
Definition

+100D

FOV = 125°

Mag = 0.5x

Term
SuperPupil XL
Definition

+135D

 

Mag: as CONTACT = 0.75x

NON-CONTACT = 0.54x

Term
Ultra View Small Pupil Lens
Definition

+132D

FOV = 86°

Mag = 0.5x

Term
Volk Super-Field Non-contact
Definition

FOV = 125°

Mag = 0.76x

Term
Indications for a DFE
Definition
  1. Baseline for new Pt
  2. (+) Hx of injury/trauma
  3. Flashes/Floaters, esp if recent onset/change
  4. Unexplained dec in BCVA w/o PH improvement
  5. Loss of VF
  6. Dense media opacities
  7. Myopia > 4-5D
  8. Miosis
  9. Unexplained headaches
  10. (+) RAPD
  11. (+) Hx of systemic disease w/ known ocular effects
  12. (+) Hx of meds w/ known ocular effects
Term
Contraindications for a DFE
Definition

LADSS

  1. Lens-fixed IOL
  2. Angle-closure GLC, risk or presence of
  3. Drug allergy
  4. Subluxed IOL
  5. Subluxed lens
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