Non-Strabismic Conditions 2 Flashcards
Basic Exophoria
equal amount of exo at distance and near low tonic vergence decreased PFV- low BO no + low MEM- lead
Basic Esophoria
equal eso at distance and near high tonic vergence reduced NFV- low BI no - high MEM- lag
Fusional Vergence Dysfunction
normal phorias and accommodation
both NFV and PFV are low
BI, BO, NRA, PRA all low, fails +/-
Normal AC/A Conditions
Basic Esophoria and Exophoria Fusional Vergence Dysfunction Accommodative Infacility Accommodative Insufficiency Accommodative Excess
Tx for Normal AC/A Conditions
VT
best Rx
surgery if severe
Accommodative Infacility
cant change accom response levels well
AA normal, BAF fail +/-
low BI/ BO at near
Symptoms of Accommodative Infacility
blur when going from distance to near or vice versa
Accommodative Insufficiency
difficulty stim accom- blur at near reduced AA no - small eso high MEM
Ill-Sustained Accommodation
normal testing, but accom deteriorates over time
early sign of accommodative insufficiency
Accommodative Paralysis
associated with infection, glaucoma, diabetes
unequal accommodation
Causes of Accommodative Insufficiency
ocular disease, systemic or neurological conditions, trauma, meds
Pseudoconvergence Insufficiency
difficulty accommodating, so underaccommodates to target- low AA cant converge- low BO no - high MEM Exo at near
Accommodative Excess
more accommodation than necessary
difficulty relaxing accom
no +
low BI
Symptoms of Accommodative Excess
blurred vision after near work
worse at end of day
Confirming Accommodative Excess
cycloplege
