Journal List > J Korean Ophthalmol Soc > v.52(8) > 1009101

Ma, Choi, Kim, and Wee: The Clinical Manifestations and Prognostic Factors of Autoimmune-Related Peripheral Corneal Ulcers

Abstract

Purpose

To investigate clinical manifestations and prognostic factors of autoimmune-related peripheral corneal ulcers.

Methods

Nineteen eyes in 18 patients who were diagnosed with autoimmune-related peripheral corneal ulcer from November 1999 to August 2010 were enrolled in the present study. Clinical manifestations and treatment results were investigated retrospectively.

Results

The average age at presentation was 64.6 years with female (66.7%) and unilateral (94.4%) dominance. The main etiologies were Mooren's ulcer (53.6%) and rheumatoid arthritis (26.3%). The ulcer depth was greater than 75% of the corneal thickness in more than half of the cases (57.9%) and the mean extent of the ulcer was 69.5°. There were no significant improvements in visual acuity after treatment (p = 0.789) and no significant differences in treatment outcomes among etiologies or treatment modalities. The patients who underwent ulcer recurrence (p = 0.048) or treatment failure (p = 0.005) had poorer final visual acuity than those patients who did not. The ulcer depth correlated with treatment failure (p = 0.037). The final visual acuity showed positive correlations with visual acuity at presentation (p = 0.031) and negative correlations with the number of recurrences (p = 0.042).

Conclusions

The visual acuity at presentation and ulcer depths were significant prognostic factors. These factors appeared to be helpful in the treatment of marginal keratitis depending on the depth of the ulcer.

References

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Figure 1.
Corneal ulcer extent. The angle between the two margins of the corneal ulcer (degree).
jkos-52-936f1.tif
Figure 2.
Comparison of final acuity for recurrence or treatment failure. Statistics were analyzed by Mann-Whitney U-test. * p = 0.048; p = 0.005.
jkos-52-936f2.tif
Table 1.
Clinical features of autoimmune related peripheral corneal ulcer
Patient age (yr) 64.6 (22.00)
Mean follow up (mon) 25.5 (24.4)
Sex (F:M) 12 (66.7%):6 (33.3%)
Unilateral:bilateral 17 (94.4%):1 (5.6%)
Right:left 10 (52.6%):9 (47.3%)
Visual acuity at presentation (log MAR) −0.53 (0.42)
Presenting symptom
  Redness 16 (84.3%)
  Ocular pain 14 (73.7%)
  Perforation 7 (36.8%)
Etiologies
  Mooren's ulcer 10 (53.6%)
  Conective tissue disease related
   Rheumatoid arthritis 5 (26.3%)
   Wegener's granulomatosis 1 (5.3%)
   Juvenile rheumatoid arthritis 1 (5.3%)
   Others 2 (10.5%)
Ulcer characteristics
  Location of ulcer Nasal 6 (31.6%)
Superior 6 (31.6%)
Inferior 6 (31.6%)
  Onset of ulcer Temporal 1 (5.2%)
Acute 6 (31.6%)
Chronic 13 (68.4%)
  Depth of ulcer Mild 7 (36.8%)
Severe 12 (63.2%)
  Extent of corneal neovascularization Mild 6 (31.6%)
Severe 13 (68.4%)
  Extent of ulcer (degree) 69.5 (46.5)
Table 2.
Range of the treatment used
Variable Operation No. (%) of patients
Surgical treatment (n = 22) Amniotic membrane transplantation 14 (48.3%)
Glue application 6 (20.7%)
Corneal limbal transplantation 5 (17.2%)
Scleral patch graft 2 (6.9%)
Conjunctival recession 2 (6.9%)
Total 29*
Topical immune-suppressive treatment (n = 20) Steroid 20 (60.6%)
Cyclosporin A 10 (30.3%)
Interferon-α 2 (6.1%)
Taclolimus 1 (3.0%)
Total 33*
Systemic immune-suppressive treatment (n = 19) Steroid 19 (59.4%)
Cyclosporin A 7 (18.6%)
Mycophenolate mofetil 4 (12.5%)
Cyclophosphamide 1 (3.9%)
Infliximab 1 (3.9%)
Total 32*

* Some patients underwent more than one treatment.

Table 3.
The comparison of treatment outcomes between treatment modalities
Variable Surgical and medical treatment (n = 7) Medical treatment only (n = 7) p-value Total (n = 15*)
Visual acuity at presentation (log MAR) −0.63 (0.26) −0.37 (0.59) 0.038 −0.50 (0.44)
Final visual acuity (log MAR) −0.98 (−1.18) −0.18 (0.08) 0.073 −0.56 (0.88)
p-value 0.335 0.371 0.789
Duration of treatment (mon) 2.02 (1.50) 0.88 (0.58) 0.165 1.42 (1.20)
Number of recurrence 0.43 (0.79) 0.00 (0.00) 0.383 0.27 (0.59)
Number of treatment failure 1.43 (1.27) 0.00 (0.00) 0.026 0.67 (1.11)
Visually improved after treatment:not improved 4 (57.1%):3 (42.9%) 5 (71.4%):2 (28.6%) 0.296 6 (42.9%):8 (57.1%)

Statistics were analyzed by Mann-Whitney U-test and Fisher's exact test.

* One patient, who underwent an additional medical treatment after the relapse was added.

Table 4.
Comparison of treatment outcomes between etiologies
Variable Mooren's ulcer (n = 8) Connective tissue disease related (n = 7) p-value
Final visual acuity (log MAR) −0.61 (0.88) −1.05 (1.31) 0.546
p-value 0.483 0.093
Duration of treatment (mon) 1.44 (1.12) 1.39 (1.38) 0.694
Number of recurrence 0.13 (0.35) 0.4286 (0.79) 0.613
Number of treatment failure 0.88 (1.36) 0.4286 (0.79) 0.779
Visually improved after treatment:not improved 5 (62.5%):3 (37.5%) 2 (28.6%):5 (71.4%) 0.214

Statistics were analyzed by Mann-Whitney U-test and Fisher's exact test.

Connective tissue disease related: Rheumatoid arthritis, Wegener's granulomatosis, Juvenile rheumatoid arthritis, other autoimmune disease.

Table 5.
Comparison of treatment outcome for clinical characteristics
Site of ulcer
Onset of ulcer
New vessel ingrowth*
Sign of inflammation*
Ulcer depth
Nasal (n = 5) Superior (n = 5) Inferior (n = 5) p Acute (n = 5) Chronic (n = 10) p Mild(n = 6) Severe(n = 8) p Mild(n = 7) Severe(n = 5) p Mild§(n = 7) Severe§(n = 8) p
Final visual acuity (log MAR) −0.29(0.24) −0.66(1.14) −0.72(1.10) 0.641 −0.70(1.12) −0.49(0.80) 0.679 −1.03 (1.29) −0.26(1.88) 1.000 −0.53 (0.96) −0.31 (0.24) 0.639 −0.18(0.86) −0.89(1.13) 0.072
Number of recurrence 0.00 (0.00) 0.60(0.89) 0.20(0.45) 0.291 0.60(0.89) 0.10(0.32) 0.371 0.50 (0.84) 0.13(0.35) 0.491 0.43(0.79) 0.00(0.00) 0.432 0.00(0.00) 0.50 (0.76) 0.232
Number of treatment failure 0.80 (1.30) 0.40(0.89) 0.80(1.30) 0.766 0.40 (0.89) 0.80(1.23) 0.594 0.83(1.33) 0.63(1.06) 0.950 0.71(1.25) 0.40(0.55) 1.000 0.00 (0.00) 1.25(1.28) 0.040

Statistics were analyzed by Mann-Whitney U-test.

* Patients were excluded from the statistical analysis if medical records were insufficient

Mild: new vessel ingrowth from the corneal limbus < 1 mm, severe: ≥ 1 mm

Mild: The degree of injection and/or swelling of the bulbar conjunctiva, episclera or sclera belongs to the mild half of cases, severe: belongs to the severe half of cases

§ Mild: corneal ulceration < 75% of the corneal thickness, severe: ≥ 75% of the corneal thickness include perforations.

Table 6.
Associations of final visual acuity with clinical characteristics by linear regression analysis
Variables Β ± SE (mean ± SD) Partial R2 p-value (multivariate)
Age at presentation (yr) −0.008 ± 0.013 0.024 0.553
Visual acuity at presentation (log MAR) −1.228 ± 0.563 0.229 0.045 (0.031)
Extent of ulcer (degree) −0.002 ± 0.007 0.006 0.775
Number of recurrence −1.426 ± 0.293 0.856 0.008 (0.042)
Number of treatment failure −0.552 ± 0.158 0.485 0.004 (0.786)
Duration of treatment −0.643 ± 0.099 0.766 0.000 (0.092)
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