Double-frequency Nd:YAG laser vs. argon-green laser in the treatment of proliferative diabetic retinopathy: randomized study with long-term follow-up.

Abstract:

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.

journal_name

Lasers Surg Med

authors

Bandello F,Brancato R,Lattanzio R,Trabucchi G,Azzolini C,Malegori A

doi

10.1002/(SICI)1096-9101(1996)19:2<173::AID-LSM8>3.

subject

Has Abstract

pub_date

1996-01-01 00:00:00

pages

173-6

issue

2

eissn

0196-8092

issn

1096-9101

pii

10.1002/(SICI)1096-9101(1996)19:2<173::AID-LSM8>3.

journal_volume

19

pub_type

临床试验,杂志文章,随机对照试验
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    pub_type: 临床试验,杂志文章,随机对照试验

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