Table 2:

Measurements by gestational age

Gestational age (weeks)	n	Lens Diameter*		Interocular Distance		Globe Diameter*
		Mean (mm)	SD	Mean (mm)	SD	Mean (mm)	SD
17	1	2.95	.00	11.20	.00	7.45	.00
18	0	−	−	−	−	−	−
19	0	−	−	−	−	−	−
20	4	3.41	.60	12.90	1.03	8.85	.66
21	6	2.87	.58	12.56	1.46	10.21	.98
22	4	3.44	.74	12.97	1.58	10.31	1.20
23	5	3.09	.48	12.71	.79	11.24	.85
24	2	4.21	.45	13.23	.40	10.53	.60
25	10	4.62	.85	17.08	1.90	12.48	1.33
26	4	4.63	.57	17.02	1.23	11.20	2.56
27	5	4.83	.55	18.04	1.31	13.49	.91
28	3	4.96	.43	16.50	.62	12.93	.94
29	3	4.44	1.22	17.12	2.46	14.00	.35
30	6	5.39	.71	17.49	1.74	14.46	.77
31	7	4.88	.14	18.25	1.94	15.27	.62
32	8	5.14	.48	19.38	2.14	16.14	1.43
33	3	5.66	.44	18.06	1.85	16.74	.30
34	14	5.11	.75	18.63	1.92	16.45	.97
35	15	5.72	.71	19.50	1.75	16.39	.70
36	9	5.86	.60	20.30	2.04	17.28	.62
37	12	5.29	1.06	18.44	2.80	16.27	1.90
38	5	5.02	1.14	18.42	2.36	16.49	2.48
39	1	5.79	.00	21.71	.00	15.84	.00

^*Average of left and right eye measurements.