January 1997

The Contralateral Corneal Endothelium in the Iridocorneal Endothelial Syndrome

Author Affiliations

From the Department of Ophthalmology (Drs Lucas-Glass, Baratz, and Bourne and Mr Nelson) and Section of Biostatistics (Mr Hodge), Mayo Clinic and Mayo Foundation, Rochester, Minn.

Arch Ophthalmol. 1997;115(1):40-44. doi:10.1001/archopht.1997.01100150042006

Objective:  To evaluate the corneal endothelial morphometric measures of the contralateral, clinically uninvolved eye of patients with the iridocorneal endothelial (ICE) syndrome.

Design:  A retrospective review of the specular microscopic photographs of the contralateral corneal endothelium of all patients with ICE syndrome seen at Mayo Clinic, Rochester, Minn.

Setting:  Ophthalmology department, Mayo Clinic.

Participants:  Twenty-eight patients with unilateral ICE syndrome who had bilateral endothelial photographs (ICE group) and 28 normal, age-matched control subjects (control group).

Main Outcome Measures:  Percentage of hexagonal cells, coefficient of variation of cell area, and endothelial cell density.

Methods:  For each patient and control, 100 endothelial cells were digitized from projected endothelial photomicrographs of the central corneas in the uninvolved eyes.

Results:  A statistically significant decrease was noted in the mean percentage of hexagonal cells (ICE, 62%; control, 69%; P=.002), and an increase was noted in the mean coefficient of variation of cell area (ICE, 0.28; control, 0.25; P=.02) in the patients with ICE syndrome compared with normal, age-matched controls. The mean endothelial cell density did not differ significantly between the 2 groups (ICE, 2588; control, 2759; P=.10).

Conclusion:  Our data suggest that the clinically uninvolved, contralateral eyes in patients with ICE syndrome have subclinical endothelial abnormalities as evidenced by a relatively low percentage of hexagonal cells and a relatively high coefficient of variation of cell area.