Double-frequency Nd:YAG laser vs. argon-green laser in the treatment of proliferative diabetic retinopathy: Randomized study with long-term follow-up
✍ Scribed by Bandello, Francesco; Brancato, Rosario; Lattanzio, Rosangela; Trabucchi, Giuseppe; Azzolini, Claudio; Malegori, Angela
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 403 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0196-8092
No coin nor oath required. For personal study only.
✦ Synopsis
Background and objective:
A randomized clinical trial using the argon-green (514 nm) and the double-frequency nd:yag (532 nm) lasers was carried out on 42 eyes with proliferative diabetic retinopathy (pdr), with the aim of assessing the long-term effects of double-frequency nd:yag panretinal photocoagulation (prp).
Materials and methods:
Twenty-one eyes were randomized to argon laser treatment (alt) and 21 to double-frequency nd:yag laser treatment (ndlt). the mean follow-up was 28.90 months (+/- 6.13) in the alt group and 29.57 months (+/- 5.17) in the ndlt group.
Results:
In the alt group, 20 eyes (95.2%) showed regression of pdr and one eye (4.8%) enlargement of pre-existing new vessels. in the ndlt group, neovascularization regressed in 20 eyes (95.2%) and increased in one (4.8%).
Conclusions:
The long-term efficacy of double-frequency nd: yag laser prp in the treatment of pdr thus appears to be similar to that of argon-green.