. Author manuscript; available in PMC: 2014 Jan 1.

Published in final edited form as: Ophthalmology. 2012 Sep 19;120(1):40–47. doi: 10.1016/j.ophtha.2012.07.036

Table 2.

Corneal Subbasal Nerve Plexus Parameters and Corneal Sensation in Eyes with Herpes Zoster Ophthalmicus, Contralateral Clinically Unaffected Eyes, and Control Group

	Herpes Zoster Ophthalmicus Patients		Controls
	Herpes Zoster Ophthalmicus Eye	Contralateral Unaffected Eye	Controls
No. of eyes	27	27	15
Mean central corneal sensation (cm)	3.8±2.1^*	5.8±0.4^†	6.0±0
Total nerve length, μm/frame (μm/mm²)	595.8±358.1^* (4462.9±2682.4)	1053.1±441.4^*^† (7888.4±3306.4)	2258.4±989.0 (16 916.9±7408.2)
Total no. of nerves	5.4±2.8^*	8.3±2.9^*^†	13.1±3.8
No. of main nerve trunks	2.3±1.1^*	3.1±1.0^*^†	4.7±1.2
Total no. of nerve branches	3.2±2.3*	5.2±2.2^†^‡	8.4±3.7
Grade of tortuosity	2.3±0.7	1.8±0.4^†	1.6±0.3

Values reported as mean±standard deviation unless otherwise indicated.

Statistically significant compared with normals, P<0.0001.

^†

Statistically significant compared with herpes zoster ophthalmicus group, P<0.05.

^‡

Statistically significant compared with normals, P<0.001.