-Reference-

Vision

Binocular Vision

Test	Expected Values
Near Cover Test	Ortho - 6XP
NPC	5/7cm Near 7/10cm Distance
Vergence Facility (3BI/12BO)	15 cycles/min
Positive Fusional Vergence	17/21/11
Negative Fusional Vergence	13/21/13
Positive Fusional Reserve (Blur/Break/Recovery)	7-11 / 15-23 / 8-12 △
Negative Fusional Reserve (Blur/Break/Recovery)	x / 5-9 / 3-5 △
Amplitude of Accomodation	Minimum: 15 - (¼)Age
Lag of Accomodation	+0.25 to +0.75
Positive Relative Accomodation	-2.37 (±1.00)
Negative Relative Accomodation	+2.00 (±0.50)
ACA	4/1 △

Condition	Cover Test	NPC	Vergence Facility	Vergence Amplitude	Accomodative Amplitude	Binocular Acc. Facility	Monocular Acc. Facility	NRA/PRA	MEM
Basic Exophoria	Exo, D=N	Normal	Low BO @ D&N	Low BO @ D&N	Normal	Fails (+)	Normal	Low NRA	Low
Basic Esophoria	Eso, D=N	Normal	Low BI @ D&N	Low BI @ D&N	Normal	Fails (-)	Normal	Low PRA	High
Convergence Insufficiency	Exo, >N	Receded	Low BO	Low BO	Normal	Fails (+)	Normal	Low NRA	Low
Convergence Excess	Eso, >N	Normal	Low BI	Normal	Normal	Fails (-)	Normal	Low PRA	High
Divergence Insufficiency	Eso, >D	Normal	Low BI @ D	Normal	Normal	Normal	Normal	Normal	Normal
Divergence Excess	Exo, >D	Normal	Low BO @ D	Low BO @ D	Normal	Normal	Normal	Normal	Normal
Accomodative Insufficiency	No Pattern	Normal	Normal	Normal	Low	Fails (-)	Fails (-)	Low PRA	High
Fusional Vergence Dysfunction	Low Eso or Exo	Normal	Low BI & BO	Normal	Normal	Fails (+) & (-)	Normal	Low NRA/PRA	Normal