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IRCT20181123041737N1 IRCT 2019-01-06 Tabriz University of Medical Sciences Comparison of Conventional and Pattern Scanning Pan retinal Photocoagulation Effects on Diabetic Patients' visual field Comparison of Conventional and Pattern Scanning Pan retinal Photocoagulation Effects on Diabetic Patients' visual field 2018-12-01 anticipated 20 Complete https://irct.ir/trial/35431 interventional Randomization: Not randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Blinding description: In the present study, the patient, the resident (Evaluator)and the nurse are kept blind , but the physician conducting the PRP is aware. N/A proliferative diabetic retinopathy or severe non-proliferative diabetic retinopathy. Intervention 1: Intervention group: Twenty patients with proliferative diabetic retinopathy or severe non-proliferative diabetic retinopathy or one eye with proliferative diabetic retinopathy and the other with severe non-proliferative diabetic retinopathy, requiring PRP.One eye underwent the Conventional PRP . In Conventional PRP method, power 250-550 mW, spot-laser 200-500μ and pulse durations100ms were applied. Spot spacing was considered as half the spot size width. Intervention 2: Intervention group: Twenty patients with proliferative diabetic retinopathy or severe non-proliferative diabetic retinopathy or one eye with proliferative diabetic retinopathy and the other with severe non-proliferative diabetic retinopathy, requiring PRP. One eye underwent the Pattern Scanning PRP. In the pattern scanning method, the power of 150-550 mW, the pulse duration of 10-30 ms, the 200 μm laser spot, and the laser spot spacing of 100 μm were applied. Yes - There is a plan to make this available What will be shared: All data can be shared When: 6 months after the publication of the results To whom: Researchers working in academic institutions Conditions: The request for data is only after the publication of the results by persons working in academic institutions Where to obtain: atena.latifi atena.latifi@yahoo.com How to obtain: after the publication of the results Comments:
public atena latifi
Abbasi Ave.,Nikukari hospital
Tabriz Iran (Islamic Republic of) 5154645395 +98 41 3657 7330 atena.latifi@yahoo.com Tabriz University of Medical Sciences scientific Atena latifi
Abbasi Ave., Nikukari hospital
Tabriz Iran (Islamic Republic of) 5154645395 +98 41 3657 7330 atena.latifi@yahoo.com Tabriz University of Medical Sciences Iran (Islamic Republic of) Proliferative diabetic retinopathy or severe non- proliferative diabetic retinopathy patients Patients with informed consent Patients with proper collaboration to perform a primetry no limit no limit Both Patients with ocular infections Glaucoma or uveitis patients Patients with degenerative or inherited retinal disease which leads to visual field damage Any ocular disease that impairs the performance of primetry Lack of proper access to patient to follow up Diabetic maculopathy History of previous laser retinal treatment turbid media Treatment - Other Treatment - Other Intervention group: Twenty patients with proliferative diabetic retinopathy or severe non-proliferative diabetic retinopathy or one eye with proliferative diabetic retinopathy and the other with severe non-proliferative diabetic retinopathy, requiring PRP.One eye underwent the Conventional PRP . In Conventional PRP method, power 250-550 mW, spot-laser 200-500μ and pulse durations100ms were applied. Spot spacing was considered as half the spot size width. Intervention group: Twenty patients with proliferative diabetic retinopathy or severe non-proliferative diabetic retinopathy or one eye with proliferative diabetic retinopathy and the other with severe non-proliferative diabetic retinopathy, requiring PRP. One eye underwent the Pattern Scanning PRP. In the pattern scanning method, the power of 150-550 mW, the pulse duration of 10-30 ms, the 200 μm laser spot, and the laser spot spacing of 100 μm were applied. Conventional Pan retinal Photocoagulation Effects on Diabetic Patients visual field. Timepoint: One day prior to the PRP and one month after the initial PRP. Method of measurement: Humphrey 30-II SITA Standard perimetry. Pattern Scanning Pan retinal Photocoagulation Effects on Diabetic Patients visual field. Timepoint: One day prior to the PRP and one month after the initial PRP. Method of measurement: Humphrey 30-II SITA Standard perimetry. Visual acuity. Timepoint: One day prior to the PRP and one month after the initial PRP. Method of measurement: Snellen chart. Tabriz University of Medical Sciences Approved 2018-06-25 Ethics committee of Tabriz University of Medical Sciences Abbasi Ave., Nikukari Hospital Tabriz West Azarbaijan Iran (Islamic Republic of)