Table 1 Ultrasound biomedical classification criteria

U1

√

-

-

-

Figure 1 - A

U2

√

Central

-

-

Figure 1 - B

U3

U3a

√

Peripheral

\( \leqslant \)180 degrees

-

Figure 1 - C

U3b

√

Peripheral

>180 degrees

-

Figure 1 - D

U4

√

√/-

√/-

UBM findings showed iris hypoplasia or lens anomaly, including lens dislocation, shape anomaly or aphakia.

Figure 1 - E