Localized Midperipheral Corneal Steepening after Hyperopic LASIK following Radial Keratotomy
Bibliographic record
Abstract
PURPOSE: To describe a case of localized midperipheral corneal steepening after laser in situ keratomileusis (LASIK) to correct hyperopia induced by radial keratotomy (RK) overcorrection. METHODS: A retrospective case observation of an unusual case. RESULTS: Five years after bilateral RK (with eight incisions) performed out of the country, a 43-year-old woman underwent LASIK in her right eye. Preoperatively, manifest refraction was + 7.75 - 1.00 x 104. Four months after LASIK, the patient's UCVA was 20/70, manifest refraction was + 2.25 - 1.25 x 103, and LASIK enhancement with flap recutting was performed. One month later, the patient complained of a 1-day history of pain and photophobia. UCVA was 20/40, and a RK incision had opened. The eye was covered with a bandage contact lens (BCL) and TobraDex drops prescribed. The following day, the BCL was removed, and UCVA was 20/200. Four days later, the patient's UCVA was 20/25. Five and a half months after LASIK enhancement, the dehisced RK incision was closed, UCVA was 20/30, and manifest refraction was + 1.25 - 1.25 x 85. One year after enhancement, UCVA deteriorated to 20/70 with manifest refraction of - 1.00 - 1.25 x 40. Localized midperipheral corneal steepening on topography also seemed to be developing. CONCLUSION: In LASIK surgery after RK, there is an inherent weakness of the cornea. Although visual acuity after RK-induced hyperopia may be improved by LASIK, the long-term refractive stability of the procedure is uncertain. Patients who undergo such a procedure should be monitored for developing localized midperipheral corneal steepening and be informed that such a complication can occur.
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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) | 0.001 | 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) | 0.002 | 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".