Intraocular Pressure and Medication Control After Clear Corneal Phacoemulsification and AcrySof Posterior Chamber Intraocular Lens Implantation in Patients With Filtering Blebs
Bibliographic record
Abstract
PURPOSE: To determine whether clear corneal phacoemulsification and the implantation of a copolymer acrylic (AcrySof, Alcon, Fort Worth, TX) intraocular lens will maintain the intraocular pressure (IOP) and number of medications in patients with a previous filtering bleb. PATIENTS AND METHODS: This retrospective analysis included 69 consecutive patients with previous trabeculectomy who had a copolymer acrylic intraocular lens implanted during cataract surgery between 1995 and 1999 by a single surgeon (A.C.S.C.). RESULTS: Mean IOP significantly decreased from 26.03 mm Hg (range, 14.5-70 mm Hg; n = 69) before trabeculectomy to 13.58 +/- 3.98 mm Hg (range, 5-24 mm Hg; n = 69) before the cataract extraction. After cataract extraction, the mean IOP increased significantly by 1.49 mm Hg (n = 67; P = 0.0013), by 1.85 mm Hg (n = 57; P = 0.0005), and by 1.01 mm Hg (n = 67; P = 0.042) after 6 months, after 1 year, and at the patient's last appointment, respectively. When patients whose pressures were purposely increased during cataract surgery were not included (n = 5), the mean increase at the last appointment was not significantly increased (0.54 mm Hg; n = 62; P = 0.25). The average number of antiglaucoma medications decreased from 2.93 (range, 1-5; n = 69) before trabeculectomy to 0.36 (range, 0-2; n = 69) before cataract surgery. This mean decreased to 0.34 (range, 0-2; n = 67; P = 0.8366) 6 months after cataract surgery and increased to 0.49 (range, 0-3; n = 57; P = 0.1029) and 0.62 (range, 0-3; n = 67; P = 0.0006) after 1 year and at the last appointment, respectively. Of the total study population, two (2.9%) patients required additional glaucoma surgery and 14 (20.3%) patients required additional antiglaucoma medications as compared with their precataract levels. CONCLUSIONS: Clear corneal phacoemulsification and the implantation of a copolymer acrylic (AcrySof, Alcon) posterior chamber intraocular lens statistically increased the number of medications and IOP of patients in our study. These increases, although statistically significant, did not cause a clinically significant deterioration in IOP control.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".