Conjunctival Flap Covering Combined with Antiviral and Steroid Therapy for Severe Herpes Simplex Virus Necrotizing Stromal Keratitis

Table 1

The comparison of BSCVA before and after the operation.

Visual acuity	Patients
	Before	After
<0.05	17	6
0.05–0.3	6	14
0.3–0.8	2	5
	25	25
	9.7468

P < 0.05.