3 Grid laser has shown a significant improvement in visual acuity (VA) and prevent moderate visual loss.
The current study was planned to evaluate the effects of sub-threshold frequency doubled neodymium yttrium aluminium garnet modified macular grid laser treatment on diffuse diabetic macular oedema in context with reduction of oedema and improvement of VA.
The grid laser treatment was performed a week after the intravitreal injection.
Cases allotted to grid laser photocoagulation (Group I- 47 eyes) or a combination of intravitreal bevacizumab with grid laser photocoagulation (Group 2-27 eyes).
For grid laser, burns used were of spot size 50-100 um and 0.
The ETDR results demonstrated that, focal photocoagulation, grid laser or both were effective in reducing the risk of moderate visual loss due to diabetic macular edema.
However, there may be complications with this treatment and
grid laser photocoagulation is not applied today in CRVO.
If necessary, the grid laser was extended up to 2 disc diameters superiorly, inferiorly, and temporally from the centre of the macula.
RESULTS: Thirty eyes of seventeen patients attending the retina clinic with a diagnosis of diffuse diabetic macular edema were subjected to grid laser and followed up for 3 months, 6 months and 1 year.
Patients having bleeding disorder active ocular infection previous history of intravitrealbevacizumab (Avastin) recent myocardial infarction uncontrolled hypertension pregnancy and previous history of focal or
grid laser were excluded.
Contrary to popular belief that PRP is associated with worsening of macular edema, we found that PRP +
grid laser done for co-existent PDR and severe NPDR did not lead to worsening of treatment outcome.
d) Combination of macular
grid laser and anti-VEGF therapy
