Table 3.

Rank importance of related variables for each vision-related quality of life (VRQoL) task.

Rank	Letters	Sentences	Walking	Going Out	Dining	Dressing	Miscellaneous	Total Disability Index
1	BCVA in better eyea (0.0020)	IVF 10-2c Inner Lower right (0.0010)	IVF 10-2 Inner Lower left (0.0005)	IVF 10-2 Inner Lower left (0.0010)	IVF 24-2 Lower (0.0015)	BCVA in better eye (0.0425)	IVF 10-2c Outer Lower left (0.0105)	IVF 24-2 Lower (0.0001)
2		IVF 24-2d Lower (0.0065)	IVF 24-2 Lower (0.0075)	IVF 24-2 Lower (0.0285)	IVF 10-2 Outer Lower right (0.0020)		BCVA in better eye (0.0145)	IVF 10-2 Inner Lower left (0.0010)
3		IVF 10-2 Outer Lower right (0.0070)		IVF 10-2 Inner Lower right (0.0305)	IVF 10-2 Inner Lower right (0.0230)		IVF 10-2 Inner Lower right (0.0290)	IVF 10-2 Inner Lower right (0.0225)
4		BCVA in worse eyeb (0.0095)					IVF 24-2 Lower (0.0350)
5		BCVA in better eye (0.0265)

Rank importance of related variables was identified according to significance levels, as calculated with the Random Forest machine-learning algorithm.

VRQoL, vision-related quality of life.

^aBCVA in better eye, best-corrected visual acuity in log MAR in better-VA eye.

^bBCVA in worse eye, best-corrected visual acuity in log MAR in worse-VA eye.

^cIVF 10-2, binocular integrated visual field (IVF) of Humphrey central 10-2 test program.

^dIVF 24-2, binocular integrated visual field (IVF) of Humphrey central 24-2 test program.

Outer (inner) lower right (left) indicates outer (inner) lower right (left) quadrant subfield of binocular integrated visual field of Humphrey central 10-2 test program.

The values in parentheses are significance levels calculated with the Random Forest machine-learning algorithm.