Surgically induced astigmatism after phacoemulsification by temporal clear corneal and superior clear corneal approach: a comparison

Figures & data

Figure 1 Preoperative LogMAR score of both groups. Group A, temporal approach; Group B - supereior approach.

Abbreviation: LogMAR, logarithm of the minimum angle of resolution.

Figure 2 Postoperative LogMAR score of both groups. Group A, temporal approach; Group B - supereior approach.

Abbreviations: BCVA, best-corrected visual acuity; LogMAR, logarithm of the minimum angle of resolution; UCVA, uncorrected visual acuity.

Table 1 Distribution of patients according to astigmatism and study groups

Astigmatism (D)	Preoperative number (%)		Postoperative number (%)
			30th day		90th day
	Group A (n=138)	Group B (n=123)	Group A (n=134)	Group B (n=122)	Group A (n=134)	Group B (n=122)
0	25 (18.12)	29 (23.58)	11 (8.21)	3 (2.46)	21 (15.67)	10 (8.2)
0.25	2 (1.45)	1 (0.81)	19 (14.18)	3 (2.46)	26 (19.4)	6 (4.92)
0.5	8 (5.8)	14 (11.38)	13 (9.7)	3 (2.46)	18 (13.43)	11 (9.02)
0.75	8 (5.8)	4 (3.25)	11 (8.21)	4 (3.28)	12 (8.96)	9 (7.38)
1	21 (15.22)	27 (21.95)	33 (24.63)	13 (10.66)	26 (19.4)	14 (11.48)
1.25	12 (8.7)	6 (4.88)	5 (3.73)	7 (5.74)	5 (3.73)	7 (5.74)
1.5	14 (10.14)	12 (9.76)	19 (14.18)	24 (19.67)	10 (7.46)	21 (17.21)
1.75	15 (10.87)	4 (3.25)	5 (3.73)	9 (7.38)	5 (3.73)	8 (6.56)
2	16 (11.59)	12 (9.76)	17 (12.69)	36 (29.51)	10 (7.46)	31 (25.41)
2.25	5 (3.62)	2 (1.63)	0 (0)	2 (1.64)	1 (0.75)	2 (1.64)
2.5	5 (3.62)	6 (4.88)	1 (0.75)	13 (10.66)	0 (0)	2 (1.64)
2.75	4 (2.9)	2 (1.63)	0 (0)	4 (3.28)	0 (0)	0 (0)
3	3 (2.17)	4 (3.25)	0 (0)	1 (0.82)	0 (0)	1 (0.82)
		Mean	0.988*	1.651**	0.768*	1.293**
		SD	0.629	0.642	0.622	0.695

Notes:

* p<0.0001 (HS);

** p<0.0001 (HS) using paired t-test.

Abbreviations: HS, highly significant; SD, standard deviation.

Table 2 Distribution of astigmatism in patients according to type and study groups

Type of astigmatism	Preoperative		Postoperative
	Number (%)		Number (%)
	Group A (n=138)	Group B (n=123)	Group A (n=134)	Group B (n=122)
ATR	61 (44.2)	50 (40.7)	43 (32.1)	113 (92.6)
WTR	52 (37.7)	44 (35.7)	62 (61.2)	4 (3.3)
No astigmatism	25 (18.1)	29 (23.6)	9 (6.7)	5 (4.1)

Abbreviations: ATR, against the rule; WTR, with the rule.

Figure 3 SIA in group A and group B on 30th and 90th day. Group A, temporal approach; Group B, superior approach.

Abbreviation: SIA, surgically induced astigmatism.