Abstract
Purpose
To validate the possibility of IOLMaster measurement as a predictor of intraoperative and postoperative complications during phacoemulsification surgery.
Methods
In this study, 2,107 eyes from 1,456 patients who underwent phacoemulsification with intraocular lens (IOL) im-plantation were divided into two groups according to the possibility of performing optical biometry with the IOLMaster (measurable group: 1,746 eyes from 1,141 patients, unmeasurable group: 361 eyes from 315 patients). The intraoperative and postoperative complication rates were compared between the two groups.
Results
Three hundred sixty-one eyes (17.1%) could not be measured using optical biometry. Dense posterior subcapsular cat-aract (56.0%) was the main factor resulting in failed measurements with optical biometry, followed by anterior subcapsular cata-ract (12.5%). The rates of posterior capsule rupture and radial tear were significantly higher in the unmeasurable group than in the measurable group (p = 0.001, p < 0.001, respectively). Corneal edema was significantly higher in the unmeasurable group (16.1%) than in the measurable group (5.3%) at postoperative 1 week (p < 0.001).
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Table 1.
Table 2.
Measurable group (n = 1,746) | Unmeasurable group (n = 361) | p-value* | |
---|---|---|---|
Age (years) (SD) | 67.4 (10.1) | 66.9 (12.9) | 0.477† |
Sex (n, %)‡ | |||
Male | 687 (39.3) | 195 (54.0) | <0.001 |
Female | 1,059 (60.7) | 166 (46.0) | |
Laterality (n, %)‡ | |||
Right eye | 862 (49.4) | 175 (48.5) | 0.812 |
Left eye | 883 (50.6) | 186 (51.5) | |
Endothelial cell density (cells/mm2) (SD) | 2,868 (422) | 2,919 (433) | 0.040† |
Cataract grade | |||
Nuclear opalescence (SD) | 2.4 (0.8) | 2.7 (1.4) | <0.001† |
Brunescent (n, %)‡ | 3 (0.2) | 13 (3.6) | <0.001 |
Posterior polar (n, %)‡ | 5 (0.3) | 21 (5.8) | <0.001 |
White (n, %)‡ | 3 (0.2) | 20 (5.5) | <0.001 |
Morgagnian (n, %)‡ | 0 (0.0) | 6 (1.7) | <0.001 |
Table 3.
Measurable group (n = 1,746) | Unmeasurable group (n = 361) | p-value* | |
---|---|---|---|
Intraoperative complication (n, %) | |||
Posterior capsule rupture | 7 (0.4) | 8 (2.2) | 0.001 |
Radial tear | 4 (0.2) | 9 (2.5) | <0.001 |
Hyphema | 1 (0.1) | 0 (0.0) | >0.999 |
Corneal burn | 0 (0.0) | 0 (0.0) | - |
Tear of descemet’s membrane | 2 (0.1) | 0 (0.0) | >0.999 |
Postoperative complication (n, %) | |||
Corneal edema | 93 (5.3) | 58 (16.1) | <0.001 |
Increased IOP | 49 (2.8) | 16 (4.4) | 0.130 |
Hyphema | 1 (0.1) | 1 (0.3) | 0.313 |