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Lasers in Medical Science
Published in: Lasers in Medical Science 6/2020

01-08-2020 | Cataract | Original Article

Comparison of Nd:YAG laser (532 nm green) vs diode laser (810 nm) photocoagulation in the treatment of retinopathy of prematurity: an evaluation in terms of complications

Authors: Seyhan Dikci, Soner Demirel, Penpe Gül Fırat, Turgut Yılmaz, Osman Melih Ceylan, Harika Gözde Gözükara Bağ

Published in: Lasers in Medical Science | Issue 6/2020

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Abstract

Purpose

To compare the anterior and posterior segment complications of diode (810 nm) laser photocoagulation (LPC) and Nd:YAG (532 nm green) LPC in the treatment of retinopathy of prematurity (ROP).

Patients and methods

The 84 eyes of 43 patients treated with diode LPC (group 1) and 58 eyes of 31 patients treated with Nd:YAG LPC (group 2) for ROP in our clinic were enrolled in the study. Medical records of all patients were investigated retrospectively. The patients in each group were examined in terms of birth weights, gestational weeks, stage of retinopathy, number of lasers pots, laser parameters, and anterior and posterior complications of LPC.

Results

The mean birth weeks of group 1 patients were postmenstrual 27.7 ± 2.5 (23–33), while the mean birth weights were 1006.0 ± 334.5 (540–1980) grams. The mean birth weeks of group 2 patients were postmenstrual 27.4 ± 2.6 (23–33), while the mean birth weights were 1073.8 ± 329.2 (480–1720) grams. The mean numbers of laser spots were 1036.0 ± 515.2 (430–2410) in group 1 per eye, while the mean numbers of laser spots were 1085.4 ± 526.0 (445–2530) in group 2 per eye (p ≥ 0.05). Additional laser application was performed in four eyes (4.8%) in group 1 and four eyes (6.9%) in group 2. Four eyes (4.8%) treated with diode LPC and one eye (1.7%) treated with Nd:YAG laser developed retinal detachment. Two eyes of a patient (3.4%) applied Nd:YAG LPC developed cataract.

Conclusion

Cataract may develop when Nd:YAG laser is used; however, posterior segment complications may be more likely to appear with the use of diode laser in these cases.
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Metadata
Title
Comparison of Nd:YAG laser (532 nm green) vs diode laser (810 nm) photocoagulation in the treatment of retinopathy of prematurity: an evaluation in terms of complications
Authors
Seyhan Dikci
Soner Demirel
Penpe Gül Fırat
Turgut Yılmaz
Osman Melih Ceylan
Harika Gözde Gözükara Bağ
Publication date
01-08-2020
Publisher
Springer London
Published in
Lasers in Medical Science / Issue 6/2020
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-019-02918-x

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