Abstract | PURPOSE: METHODS: Prospective randomised clinical trial. Treatment-naive PDR was treated with single-session 20-ms Pascal 2500 burns photocoagulation randomised to one of three treatment arms (TRP:MT-PRP:SI-PRP). Primary outcome measure was change in central retinal thickness (CRT) on OCT. Secondary outcomes at 4 and 12 weeks post- laser included: OCT peripapillary nerve fibre layer (NFL) thickness; PDR disease regression on Optos angiography; SITA-Std visual fields (VF); and, visual acuity (VA). RESULTS: 30 eyes of 24 patients were studied, ten eyes/arm. At 12 weeks, there were significant reductions in CRT after TRP (9.6 µm; 95% CI, 1.84 to 17.36; p=0.021) and MT-PRP (17.1 µm; 95% CI, 11 to 23.2; p=0.001), versus SI-PRP (+5.9 µm; 95% CI, -6.75 to 18.55; p=0.32). PDR regression was similar between groups (TRP 70%; MT-PRP 70%; SI-PRP 90%; κ=0.76). No significant changes in VA and NFL thickness developed between groups. The VF mean deviation scores increased significantly in all groups at 12 weeks ([TRP, +0.70dB; 95% CI, 0.07 to 1.48; p=0.07], [MT-PRP, +0.63dB; 95% CI, 0.12 to 1.15; p=0.02], [SI-PRP, +1.0dB; 95% CI, 0.19 to 1.74; p=0.02]). There were no laser-related ocular complications. CONCLUSIONS: This pilot study reports that high-density 20-ms Pascal TRP and MT-PRP using 2500 burns did not produce increased macular thickness or any ocular adverse events during the short-term.
|
Authors | Mahiul M K Muqit, Lorna B Young, Rod McKenzie, Binu John, George R Marcellino, David B Henson, George S Turner, Paulo E Stanga |
Journal | The British journal of ophthalmology
(Br J Ophthalmol)
Vol. 97
Issue 2
Pg. 220-7
(Feb 2013)
ISSN: 1468-2079 [Electronic] England |
PMID | 23178855
(Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
|
Topics |
- Adult
- Diabetic Retinopathy
(pathology, surgery)
- Female
- Fluorescein Angiography
- Follow-Up Studies
- Fundus Oculi
- Humans
- Laser Coagulation
(instrumentation)
- Lasers
- Male
- Middle Aged
- Pilot Projects
- Prospective Studies
- Retina
(pathology, surgery)
- Tomography, Optical Coherence
- Treatment Outcome
- Visual Acuity
|