Research Article

Repeat Keratoplasty for Failed Therapeutic Keratoplasty for Microbial Keratitis: An Analysis of Characteristics and Risk Factors

Table 2

Demographic and clinical characteristics of patients who underwent therapeutic keratoplasty with and without repeat keratoplasty.

With repeat keratoplasty (n = 18)Without repeat keratoplasty (n = 429)

Age, years45.1 ± 11.448.8 ± 15.60.9937
Gender, n of male (%)14 (77.8)276 (64.3)0.317
Initial causative organism, n of cases (%)
 Bacteria2 (11.1)32 (7.5)0.459
 Fungi6 (33.3)208 (48.5)
 Viral010 (2.3)
 Acanthamoeba1 (5.6)11 (2.6)
 Mixed1 (5.6)16 (3.7)
 Cultural-negative8 (44.4)152 (35.4)

Initial perforation, n of cases (%)
 Absent14 (77.8)271 (63.2)0.316
 Present4 (22.2)158 (36.8)

Initial ocular comorbidities, n of cases (%)
 Absent16 (88.9)367 (85.5)0.577
 Chemical burn1 (5.6)7 (1.6)
 Ocular trauma020 (4.7)
 Ocular surface disease1 (5.6)29 (6.8)
 Glaucoma06 (1.4)

Initial surgical procedure, n of cases (%)
 PK12 (66.7)325 (75.8)0.404
 LK6 (33.3)104 (24.2)

PK, penetrating keratoplasty; LK, lamellar keratoplasty.