Journal List > J Korean Ophthalmol Soc > v.54(8) > 1009445

Yoo, Hwang, Park, and Kim: Influence of Phacoemulsification on Progression of Glaucoma and Analysis of Related Factors in Glaucoma Patients

Abstract

Purpose

To evaluate the factors affecting glaucoma progression after cataract surgery with phacoemulsification.

Methods

The medical charts of 109 eyes of 68 patients with glaucoma who had phacoemulsification were retrospectively reviewed. The course of glaucoma was followed up for at least 2 years. Age, sex, diabetes, hypertension, preoperative mean deviation, phacoemulsification time, cataract type, refractive error, preoperative and postoperative visual acuity, preoperative and postoperative intraocular pressure, axial length, and central corneal thickness between the progression group and the non-progression group were compared.

Results

Among 109 eyes with glaucoma, 19 (17.4%) eyes were classified into the glaucoma progression group. In the multivariate analysis, age (p = 0.026), preoperative mean deviation (p < 0.001), and phacoemulsification time (p < 0.001) were statistically associated with glaucoma progression.

Conclusions

For patients with glaucoma, phacoemulsification may result in its progression. Special attention should be given to patients with the above risk factors.

References

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Table 1.
Characteristics of patients
No. of eyes 109
Age (year, range) 70.9 ± 5.4 (61-82)
Sex (M : F) 35 : 74
Mean deviation (dB) 11.9 ± 5.5
SE (diopter) -0.9 ± 0.7
Preoperative IOP (mm Hg) 15.05 ± 2.72
CCT (um) 540.3 ± 30.5
AL (mm) 23.4 ± 1.2
Preoperative VA 0.64 ± 0.57
Follow-up (months) 28.7 ± 2.4

Values are presented as mean ± SD.

SE = spherical equivalent; IOP = intraocular pressure; CCT = central corneal thickness; AL = axial length; VA = visual acuity.

Table 2.
Progression of glaucoma, 2 years after phacoemulsi-fication
  Number (%)
Non-progression G 90 (82.6%)
Progression G 19 (17.4%)
Total 109
Table 3.
Changes in best-corrected visual acuity, intraocular pressure, number of medication, and mean deviation be phacoemulsification efore and after
Variable PreOp PostOp Difference p-value
BCVA (log MAR) Non-progression G 0.63 ± 0.61 0.21 ± 0.25 -0.42 ± 0.49 <0.001*
Progression G 0.71 ± 0.40 0.24 ± 0.23 -0.46 ± 0.27 <0.001
IOP Non-progression G 15.0 ± 1.76 13.71 ± 2.24 -1.29 ± 2.26 0.024*
Progression G 15.28 ± 2.40 14.17 ± 2.07 -1.11 ± 2.95 0.196
Number of medication Non-progression G 1.57 ± 0.75 1.22 ± 0.75 -0.36 ± 0.58 <0.001*
Progression G 1.50 ± 0.99 2.18 ± 0.88 0.64 ± 0.86 0.013
MD Non-progression G -10.94 ± 2.11 -8.71 ± 2.30 2.23 ± 2.41 <0.001*
Progression G -16.51 ± 7.99 -18.96 ± 5.41 2.44 ± 4.62 0.04

PreOP = preoperative; PostOP = postoperative; BCVA = best corrected visual acuity; IOP = intraocular pressure; MD = mean daviation.

* Wilcoxon signed ranks test;

Paired t-test.

Table 4.
Univariate analysis of risk factors for glaucoma progression after phacoemulsification
Variable Number of patients (%) p-value
Non-progression G Progression G
Age (years) ≤74 60 (66.7) 8 (42.1) 0.045
≥75 30 (33.3) 11 (57.9)
Sex Male 28 (31.1) 7 (36.8) 0.627
Female 62 (68.9) 12 (63.2)
Mean deviation (dB) <-12 63 (70.0) 7 (36.8) 0.006
≥-12 27 (30.0) 12 (63.2)
Phaco time (sec) <60 51 (56.7) 4 (21.1) 0.005
≥60 39 (43.3) 15 (78.9)
Nuclear cataract Cortical 48 (53.3) 6 (31.6) 0.085
Nuclear 42 (46.7) 13 (68.4)
SE (D) >-1 17 (18.9) 4 (21.1) 0.828
≤-1 73 (81.1) 15 (78.9)
Preoperative IOP (mm Hg) ≤14 40 (44.9) 12 (63.2) 0.149
≥15 49 (55.1) 7 (36.8)
Postoperative IOP (mm Hg) ≤14 68 (75.6) 15 (78.9) 0.753
≥15 22 (24.4) 4 (21.1)
CCT (um) <550 34 (37.8) 9 (47.4) 0.437
≥550 56 (62.2) 10 (52.6)
Axial length (mm) <26 66 (73.3) 14 (73.7) 0.975
≥26 24 (26.7) 5 (26.3)
Preoperative V/A >0.7 46 (51.1) 10 (52.6) 0.904
≤0.7 44 (48.9) 9 (47.4)
Postoperative V/A >0.7 6 (6.7) 3 (15.8) 0.189
≤0.7 84 (93.3) 16 (84.2)
DM No 55 (61.1) 12 (63.2) 0.868
  Yes 35 (38.9) 7 (36.8)
HBP No 65 (72.2) 13 (68.4) 0.739
Yes 25 (27.8) 6 (31.6)

Phaco time = phacoemulsification time; SE = spherical equivalent; IOP = intraocular pressure; CCT = central corneal thickness; DM = diabetes mellitus; HBP = hypertension; V/A = visual acuity. .

Table 5.
Multivariate analysis of risk factors of glaucoma progression after phacoemulsification
Variable Odds ratio 95% CI p-value
Age 1.013 1.002-1.025 0.026
Mean deviation 1.119 1.090-1.149 <0.001
Phaco time 1.102 1.071-1.134 <0.001
Nuclear cataract 1.245 0.944-1.642 0.121

Phaco time = phacoemulsification time; CI = confidence interval.

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