الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 73 |  |  |
| | | from | 73 | | |
Abstract
Diabetic retinopathy is the leading cause of visual impairment in working-age adults worldwide. Pan retinal photocoagulation (PRP) has provided an effective treatment to decrease the risk of severe vision loss in patients with proliferative diabetic retinopathy for the past four decades, conventional photocoagulation using a single application of laser energy per shot is usually delivered as a 100–200 ms duration burn. This gets difficulties for the patients and the treating doctors and takes a long time especially in PRP, pattern low fluence laser was developed to minimize the side effects of PRP at the same time achieving comparable results with the conventional argon PRP in the treatment of patients with diabetic retinopathy, the low fluence pattern laser delivery system creates well aligned arrays of retinal lesions in a shorter period, this offers several potential advantages over conventional single spot laser, including increased uniformity and precision of spot placement and reduced pain.
The present study was conducted to assess the low fluence settings during pattern panretinal photocoagulation delivered for patients with severe non proliferative or proliferative diabetic retinopathy in single session as regards pain reduction and efficacy of regression of diabetic retinopathy.
This non comparative study included twinty diabetic patients (one eye from every patient was included in the study) with severe non prolifrative and prolifrative diabetic retinopathy without diabetic macular oedema, previous laser, and intravitreal injection or cataract surgery in last 6 months.
These patients was investigated before the procedure by FFA and OCT, immediately after the session by Coloured photograph to show immediate laser effect.
Evaluation of pain sensation by questionnaire, At one month by BCVA and slit lamp biomicroscopy, FFA and OCT at the 3 months.
The mean age of the subjects was62.45 ± 7.37, The mean duration of diabetes was 14.25 ± 3.54, The mean BCVA before and after the procedure was 0.73 ± 0.38 and 0.77 ± 0.38 respectively there was no statistically significant difference between before and after BCVA, The mean central macular thickness before and after the procedure was 277.7 ± 5.38 and 290.4 ± 4.41 respectively which was clinically not significant, As regard of pain response: in(2) patients (10%) there were no recorded pain, while in (12) patients(60%) there were with mild pain ,in (5) patients (25%) there were moderate pain, lastly in (1) patient(5%)there were severe pain.
The response was as follows; In (18) patients (90%) there were good response and in (2) patients there were poor response as conducted by persistant activity of diabetic retinopathy. and there were no recorded complications in all cases.