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Does macular laser alter the refraction in a diabetic with maculopathy? A pilot study
1Department of Ophthalmology University Hospital, Nottingham, UK.
Eye (London, England)
|November 13, 2001
Summary
Macular photocoagulation in diabetic patients does not significantly alter refraction. Ophthalmologists can confidently prescribe corrective lenses before laser therapy if needed, as vision changes are minimal.
Area of Science:
- Ophthalmology
- Diabetic Retinopathy Management
Background:
- Diabetic maculopathy is a leading cause of vision loss in diabetic patients.
- Macular photocoagulation is a common treatment for diabetic maculopathy.
- The impact of this laser treatment on refractive error is not well-established.
Purpose of the Study:
- To investigate the effect of argon laser photocoagulation on refractive error in diabetic patients.
- To assess ophthalmologists' current practices regarding spectacle prescription for diabetics awaiting macular laser treatment.
Main Methods:
- Prospective study of 12 diabetic eyes undergoing argon laser treatment.
- Refraction measured 2 weeks pre-treatment, and 4 weeks and 4 months post-treatment.
- Spherical equivalents (SEQ) analyzed for changes; ophthalmologist attitudes surveyed.
Main Results:
- Median change in SEQ was 0.36 D at 4-6 weeks and 0.25 D at 4 months post-laser.
- These refractive changes were not statistically significant (p=0.17 and p=0.10).
- Only 36% of surveyed ophthalmologists would prescribe glasses before laser treatment.
Conclusions:
- Argon laser photocoagulation for diabetic maculopathy does not significantly alter refractive error.
- Corrective lenses can be prescribed as needed before laser therapy.
- This finding supports timely refractive correction for diabetic patients undergoing treatment.
