Relationship between preoperative axial length and myopic shift over 3 years after congenital cataract surgery with primary intraocular lens implantation at the National Institute of Ophthalmology of Peru, 2007–2011

Figures & data

Table 1 Baseline characteristics (n=76)

	Frequency (%)
Time of surgery >12 months	52 (68.4)
Male	33 (43.2)
Right eye	37 (48.7)
Preoperative axial length ≤21.5 mm	43 (56.6)
Visual axis obscuration	32 (42.1)
Bilateral cataract	63 (82.9)

Table 2 Relationship between axial length and others factors associated with average myopic shift (diopters) in children with pseudophakia (n=76)

	Mean (SD)	p-value
Time of surgery (months)		0.988
≤12 months, n=24 (31.6%)	3.6 (2.4)
>12 months, n=52 (68.4%)	3.6 (3.6)
Preoperative axial length (mm)		0.359
>21.5, n=33 (43.4%)	3.2 (3.3)
≤21.5, n=43 (56.6%)	3.9 (3.2)
Visual axis obscuration		0.901
No, n=44 (57.9%)	3.5 (3.2)
Yes, n=32 (42.1%)	3.6 (3.4)
Laterality of the cataract		0.001
Bilateral, n=63 (82.9%)	3.0 (1.9)
Unilateral, n=13 (17.1%)	6.3 (6.2)

Table 3 Mean myopic shift in children with pseudophakia and bilateral cataracts (n=63)

	Mean (SD)	p-value
Time of surgery (months)		0.432
≤12 months, n=21 (33.3%)	3.3 (1.8)
>12 months, n=42 (66.7%)	2.9 (2.0)
Preoperative axial length (mm)		0.098
>21.5, n=28 (44.4%)	2.6 (2.0)
≤21.5, n=35 (55.6%)	3.4 (1.8)
Visual axis obscuration		0.763
No, n=35 (55.6%)	3.0 (2.0)
Yes, n=28 (44.4%)	3.1 (1.8)

Figure 1 Mean myopic shift in children with pseudophakia according to time after surgery.

Figure 2 Relationship between axial length and average myopic shift in children with pseudophakia (n=76).