Amsler grid chart types4/14/2024 This is an Open Access (OA) journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms. Shrimali N, Karkhanawala M, Aggarwal S, Gajiwala U, Katariya P, A comparative study of chart 1 and chart 7 of amsler grid in early detection of symptomatic diabetic macular edema. Keywords: Amsler grid, Diabetic macular edema The difference was statistically significant (PĬonclusion: Amsler grid type 7 is a superior tool in detecting metamorphopsia due to macular edema than type 1 conventional Amsler grid. Results: The sensitivity of Chart 1 of Amsler grid in detecting metamorphopsia was 56.25 percent, whereas the sensitivity of Chart 7 of Amsler grid was 76.47 percent. Main outcome and Measures: Sensitivity and Specificity of both Amsler chart were calculated and compared using statistical analysis. DME was treated as per clinical guidelines. Intervention: No intervention was done for purpose of study. Subjects: 80 eyes of 80 patients were enrolled, equally divided into 2 groups of 40 patients each. Setting: Retina Unit, M And J Western Regional Institute Of Ophthalmology, Civil Hospital, Asarwa, Ahmedabad, Gujarat, India. The patient is asked to note the amount of metamorphopsia in an Amsler grid. The frequency of the sine wave is constant in each chart, but the amplitude is different. Group A patients were given Amsler chart 1 and group B patients given Amsler chart 7.Regular 3 monthly follow up was done for 2 years with Optical Coherence Tomography (OCT) to detect DME on every follow up. Sine Amsler chart uses 8 modified Amsler grids with central sine waves instead of lines. Keywords: Amsler grid, Diabetic macular edema. Conclusion: Amsler grid type 7 is a superior tool in detecting metamorphopsia due to macular edema than type 1 conventional Amsler grid. The specificity of Amsler test in both groups was 100 percent. Eighty patients were divided into two equal groups- A and B. The difference was statistically significant (P< 0.05). Objective: The aim of this study is to compare the sensitivities of chart 1 and chart 7 of the Amsler grid in early detection of metamorphopsia suggestive of diabetic macular edema.ĭesign: It was a randomized, prospective, analytical study. The Amsler chart could be used for the follow-up of patients suffering from macular diseases with high reliability.A comparative study of chart 1 and chart 7 of amsler grid in early detection of symptomatic diabetic macular edemaĪuthor Details : Nilesh Shrimali, Minhaz Karkhanawala, Somesh Aggarwal *, Uma Gajiwala, Pratik katariya The Amsler chart is an accurate test in detecting macular disease, and if used properly, it could be effective in the early detection of macular diseases. There was substantial agreement between the results of the Amsler grid and those of other investigations on the follow-up evaluation. The sensitivity of detection of macular disease by the Amsler grid was 88% (95% confidence interval: 77.9-97.6%). Hold the grid 12 to 15 inches away from your face in a well-lit area. Follow these step-by-step instructions on how to perform the Amsler grid test yourself. Hold the Amsler grid approximately 14 to 16 inches from your eyes. Wear eyeglasses you normally wear for reading (even if you wear only store-bought reading glasses. It can be done quickly and easily at home or during a routine eye exam. Here are the basic steps: Test your eyes under normal room lighting used for reading. These patients were followed at 1, 3, and 6 months by BCVA, the Amsler chart, and other investigations.įifty patients (50 eyes) were analyzed statistically. An Amsler grid is a non-invasive and painless test. Since its discovery, the Amsler grid has become important in the evaluation of the central 20° of the visual field surrounding the fixation.Ī total of 50 eyes of 50 patients with different types of macular diseases were tested by the Amsler chart and compared with other diagnostic investigations (fundus fluorescein angiography and optical coherence tomography) in each patient. Proper use of this Amsler Grid will enable you to detect changes in your vision. The Amsler chart provides a convenient method to detect and monitor macular diseases on the basis of a grid pattern that allows both scotomas (detected by missing or blurred lines) and metamorphopsia (bowed or distorted lines) to be detected. To assess the validity of the Amsler chart as a screening test for the detection of macular diseases and to test its reliability in the follow-up of patients with macular diseases compared with other confirmatory investigative methods such as fundus fluorescein angiography (FFA) and optical coherence tomography (OCT).
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |