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Visual function after penetrating keratoplasty for keratoconus: a prospective longitudinal evaluation.
1Department of Ophthalmology, Manchester University and the Royal Eye Hospital, Manchester.
The British Journal of Ophthalmology
|December 28, 1999
Summary
Penetrating keratoplasty (PK) significantly improves vision and quality of life for keratoconus patients. Uncomplicated PK leads to rapid and substantial gains in visual function and health status.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Vision Science
Background:
- Keratoconus is a progressive corneal ectasia leading to visual impairment.
- Penetrating keratoplasty (PK) is a surgical option for advanced keratoconus.
- Assessing visual function and health status post-PK is crucial for patient outcomes.
Purpose of the Study:
- To evaluate visual function and vision-specific health status in patients with keratoconus after penetrating keratoplasty (PK).
Main Methods:
- Prospective longitudinal study of 18 keratoconus patients undergoing PK.
- Measurements included visual acuity, contrast sensitivity, glare, visual field, stereoacuity, and VF-14 questionnaire.
- Data collected preoperatively and at 3, 9, and 18 months post-surgery.
Main Results:
- Significant improvements in visual acuity, contrast sensitivity, and stereoacuity within 3 months (p<0.05).
- Reduced impact of glare and significant improvement in VF-14 scores post-surgery (p<0.05).
- VF-14 scores correlated with visual acuity, visual field, and stereoacuity.
Conclusions:
- Uncomplicated penetrating keratoplasty results in substantial and rapid improvements in visual function.
- Vision-specific health status significantly enhances following PK in keratoconus patients.