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Visual performance after interface haemorrhage during laser in situ keratomileusis
R B Vajpayee1, R Balasubramanya, A Rani
1Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India. rasikvajpayee@rediffmail.com
The British Journal of Ophthalmology
|May 29, 2003
Summary
Intraoperative bleeding during laser assisted in situ keratomileusis (LASIK) can negatively impact visual outcomes. Patients experiencing this complication showed reduced uncorrected and best corrected visual acuity, contrast sensitivity, and glare acuity post-surgery.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Surgery
Background:
- Laser assisted in situ keratomileusis (LASIK) is a common refractive surgery procedure.
- Intraoperative complications, such as interface haemorrhage, can occur during LASIK.
Purpose of the Study:
- To evaluate the impact of intraoperative interface haemorrhage on visual performance after LASIK.
- To compare visual outcomes in eyes with and without interface haemorrhage following LASIK.
Main Methods:
- A comparative study of 20 patients undergoing LASIK.
- Group 1: Eyes with intraoperative interface haemorrhage.
- Group 2: Fellow eyes with uncomplicated LASIK surgery. Visual acuity, refraction, contrast sensitivity, and glare acuity were assessed preoperatively and postoperatively at 1, 3, and 6 months.
Main Results:
- Eyes with interface haemorrhage (Group 1) showed significantly lower uncorrected visual acuity (0.6 vs 1.0) and best corrected visual acuity (0.89 vs 1.0) at 6 months and 1 week, respectively, compared to controls (Group 2).
- Contrast sensitivity and glare acuity were significantly reduced in Group 1 at 6 months post-LASIK compared to Group 2.
- Despite initial reductions, all eyes achieved a best corrected visual acuity of 6/6 by 1, 3, and 6 months.
Conclusions:
- Intraoperative interface haemorrhage during LASIK surgery can lead to a temporary or persistent decline in visual performance.
- Reduced contrast sensitivity and glare acuity are notable consequences of interface haemorrhage.
- While best corrected visual acuity may recover, interface haemorrhage warrants careful consideration in LASIK procedures.