Title: Study of the Effect of Grid Laser Photocoagulation on Contrast Sensitivity in Patients with Diabetic Macular Odema

Author: Dr Thoutam Anusha

 DOI: https://dx.doi.org/10.18535/jmscr/v10i10.18

Abstract

Introduction

Contrast sensitivity is an important aspect of visual function and is even more important for ordinary daily tasks than visual acuity. Contrast sensitivity function may be deteriorated to a significant level in diabetic retinopathy, especially in diabetic macular edema.[1-4]

Diabetic macular edema is a microvascular complication of diabetes mellitus defined as retinal thickening resulting from the accumulation of fluid in the retina. When it is associated with hard exudates, both retinal damage and permanent visual loss will occur.[5]

Diabetic macular Odema is one of the major causes for moderate vision loss in diabetic patients. Laser photocoagulation is the treatment modality for DME either focal or grid laser is done which reduces the odema thus improving the vision and contrast sensitivity.[6,7]

The objective of this study was to determine the impact of macular laser photocoagulation as the standard treatment of clinically significant macular edema on contrast sensitivity.

References

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  3. Knudsen LL. Visual acuity testing in diabetic subjects: the decimal progression chart versus the Freiburg visual acuity test. Graefes Arch Clin Exp Ophthalmol. 2003;241:615–618.
  4. Sala SD, Bertoni G, Somazzi L, et al. Impaired  contrast sensitivity in diabetic patients with and without retinopathy:  A new technique for rapid assessment. British Journal of Ophthalmology. 1985;69:136-142.
  5. Reeves BC, Hill AR, Ross JE. Test-retest reliability of the Arden Grating Test: inter-tester variability. Ophthalmic Physiol Opt 1988;8(2):128-38.
  6. Mukuno K, Ishikawa S, Okamura R. Grating test of contrast sensitivity in patients with Minamata disease. Br J Ophthalmol 1981 Apr;65(4):284-90.
  7. Higgins KE, Meyers SM, Jaffe MJ, et al. Temporary loss of foveal contrast sensitivity associated with panretinal photocoagulation. Archives of Ophthalmology. 1986;104:997- 1002.

Corresponding Author

Dr Thoutam Anusha

MS Ophthal

Senior Resident, Chalmeda Ananadarao Institute of Medical Sciences, Karimnagar