Refractive results after cataract surgery in patients: calculation with Holladay II and Barrett Universal II formulas

Figures & data

Table 1. Distribution of cases by age and gender.

Gender	N	%	Mean	SD	Min	Max
Female	80	50.0	72.86	11.06	49.00	92.00
Male	80	50.0	69.98	10.90	47.00	93.00
Total	160	100.0	71.42	11.04	47.00	93.00

Table 2. Distribution of cases by checkup.

Checkup day	N	%
1, 7, 30	49	20.9
1, 7, 30, 60	159	67.7
1, 7, 60	27	11.5
Total	235	100.0

Table 3. Average values of keratometric indicators.

Value	N	Mean	Median	Mode	SD	Min	Max
K_AVG	235	43.97	43.78	44.65	1.67	34.87	47.75
Cyl_bef	235	0.90	0.70	0.53	0.79	0.02	5.45
After Cyl	235	0.55	0.50	0.55	0.41	−0.12	2.87

Table 4. Average values of biometric indicators.

Value	N	Mean	Median	Mode	SD	Min	Max
AL	235	23.68	23.53	23.98	0.99	21.57	28.25
ACD	235	3.38	3.45	3.25	0.38	2.10	4.35
LT	235	4.45	4.43	4.95	0.52	3.23	5.87
NV	235	12.15	12.13	11.98	0.43	11.02	13.39
V	235	15.86	15.79	16.07	0.99	13.91	20.70
ACD + LT	235	7.82	7.86	7.70	0.45	6.38	9.00
AS/AL	235	0.33	0.33	0.33	0.02	0.26	0.38

Figure 1. Relative proportion of eyes with AE < 0.50D, AE > 0.50D and befCylD value.

Table 5. Relative risk of refractive error according to befCyl D value.

0.75D	1.8
1.0D	2.1
2.0D	12.3

Table 6. Inspection of the distributions in the two groups.

Value	AE	N	Mean	Median	Mode	SD	Min	Max	p
ASD/AL	AE < 0.50	147	0.33	0.33	0.33	0.02	0.26	0.38	0.938
	AE > 0.50	88	0.31	0.32	0.32	0.02	0.26	0.36

Note: Mann-Whitney test.

Figure 2. Relative proportion of eyes with AE < 0.50D and AE > 0.50D in AL subgroups.

Figure 3. Distribution according to AL and refractive formula in eyes with AE< ±0.50D.

Figure 4. Relative share of eyes with UCVA.

Note: All the 235 eyes were taken as 100%.

Figure 5. Relative share of eyes under UCVA, according to the applied formula.

Figure 6. Relative share of eyes with UCVA > 0.8 according to AL and the refractive formula.

Table 7. Relationship between AL and choice of refractive formula.

AL (mm)	Refractive formulas
AL < 20.0 mm	Holladay I, Holladay II
AL: 20.0–21.5 mm	Hoffer Q, Holladay II
AL: 21.5–23.5 mm	SRK/T, Holladay I, Hoffer Q, BU-II, Holladay II, Haigis, Olsen
AL: 23.5–26.0 mm	Holladay I, BU-II
AL > 26.0 mm	SRK/T, BU-II

Data availability

The data that support the findings reported in this study are available from the corresponding author [T.K.] upon reasonable request. The data are not publicly available due to their containing information that could compromise the privacy of research participants.