Plateau Iris in Whites versus Asians

Thidarat Leeungurasatien， Sunita Radhakrishnan，Travis Porco Goufu Huang，4， Senad Osmanovic，Jehn-Yu Huang，Shan Lin，*

1.Department of Ophthalmology， University of California， San Francisco， School of Medicine，

San Francisco，California， USA

2.Department of Ophthalmology， Chiang Mai University Hospital， Chiang Mai， Thailand

3.Glaucoma Center of San Francisco and Glaucoma Research＆ Education Group，San Francisco，California，USA

4.State Key Laboratory of Ophthalmology， Zhongshan Ophthalmic Center，

Sun Yat-sen University，Guangzhou，China

5.Northwestern University，Feinberg School of Medicine，Chicago， Illinois， USA

6.University of California， Davis， School of Medicine， California， USA

7.National Taiwan University Hospital，Taiwan

Introduction

Materials and methods

Figure 1 Ultrasound biomicroscopy image from an eye with plateau iris showing iridotrabecular contact（A）， anterior displacement of ciliary process （B）， loss of the ciliary sulcus（C）， and flat central iris plane （D）.SS＝Scleral spur.

Figure 2 Ultrasound biomicroscopy image from an eye with plateau iris showing “slit” angle between peripheral iris and cornea

Statistical analysis

Table 1 Clinical characteristics and biometric parameters of White and Asian subjects

Table 2 Persistent appositional angles， plateau iris without appositional angles， and plateau iris with appositional angles in White and Asian subjects

Figure 3 Ultrasound biomicroscopy image from an eye with features of plateau iris after laser peripheral iridotomy showing anterior ciliary process， absent ciliary sulcus， and flat central iris plane without iridotrabecular contact.

Discussion