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ISSN 1561-3070 (Electronic)

2020, Number 3

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Rev Cub Oftal 2020; 33 (3)

Contrast sensitivity in a group of Mexican diabetics

Rodríguez MA, Villamar MLA, Corzo BE, Chávez CS, Sánchez SAS

Language: Spanish
References: 16
Page: 1-10
PDF size: 290.53 Kb.


ABSTRACT

Objective: Compare contrast sensitivity as measured in a group of Mexican diabetes mellitus patients versus a control non-diabetic group.
Methods: A group of 31 volunteers, 14 participants with DM with a diagnosis time between 2 and 20 years (without diabetic retinopathy), and 17 in the control group started the study; 4 diabetics and 5 non-diabetics were excluded because they did not meet the inclusion criteria. Therefore, the data analyzed were from a group of 10 diabetics (52 ± 10 years) and another of 12 non-diabetics (52 ± 6 years). Contrast sensitivity was evaluated with a Vector Vision CSV1000E chart at a distance of 2.5 meters and a luminance of 85 cd/m2.
Results: A higher percentage of diabetic eyes reached a better contrast threshold at 3, 6 and 18 cycles per degree in comparison with the control group. At 12 cycles per degree only at thresholds 1 and 5.
Conclusions: Contrast sensitivity in the Mexican population with diabetes mellitus displays better contrast perception at the frequencies evaluated than the control group.


REFERENCES

  1. World Health Organization. Global Report on Diabetes. Francia: MEO Design & Communication; 2016 [acceso: 01/04/2018]. Disponible en: http://alturl.com/n8e33

  2. Rashmi S, Varghese RC, Anupama B, Hegde V, Jain R, Kotian H. Contrast Sensitivity in diabetic patients without retinopathy and It's correlation with the duration of diabetes and glycemic control. IOSR-JDMS. 2016;15(8):11-3.

  3. Malik MY, Tariq H, Yasmeen A, Ahmed R, Naz A, Adil SO. Impaired colour vision and contrast sensitivity in patients with diabetes mellitus. Pak J Ophthalmol. 2018;34(1):2.

  4. Rahman AAA, Badarudin NE, Azemin MZC, Ahmad N, Arifin AE. Changes in contrast sensitivity in young adults with diabetes. Mak J Health Res. 2018;22(1):22-6.

  5. Katz G, Levkovitch-Verbin H, et al. Mesopic foveal contrast sensitivity is impaired in diabetic patients without retinopathy. Graefe's Arch Clin Exp Ophthalmol. 2010;248:1699-1702.

  6. Shankar G, Kaiti R. Visual functions and disability in diabetic retinopathy patients. J Optom. 2014;7:37-43.

  7. Andrade LC, Souza GS, et al. Influence of retinopathy on the achromatic and chromatic vision of patients with type 2 diabetes. BMC Ophthalmol. 2014;14:104.

  8. Heravian J, Shoeibi N, et al. Evaluation of contrast sensitivity, colour vision and visual acuity in patients with and without diabetes. Ir J Ophthalmol. 2010;22:33-40.

  9. McAnany JJ, Park JC. Reduced contrast sensitivity is associated with elevated equivalent intrinsic noise in type 2 diabetes who have mild or no retinopathy. Invest Ophthalmol Vis Sci. 2018;59:2652-8.

  10. Sun Y, Erdem E, Lyu A, et al. The SPARCS: a novel assessment of contrast sensitivity and its reliability in patients with corrected refractive error. Br J Ophthalmol. 2016;100:1421-6.

  11. Stoimenova B. The effect of myopia on contrast thresholds. Invest Ophthalmol vis sci. 2007;48(5):2371-4.

  12. Shiow-Wen L, Cheng-Jen C. Myopia and contrast sensitivity function. Curr Eye Res. 2001;22(2):814.

  13. Pascal JI. Meaning and Application of the Spherical Equivalent. Austr J Optom. 1954;30:157-83.

  14. Koefoed VF, Baste V, Roumes C, Hovding G. Contrast sensitivity measured by two different test methods in healthy, young adults with normal visual acuity. Acta Ophthalmol. 2015;93:154-61.

  15. Nachar N. The Mann-Whitney U: A test for assessing whether two independent samples come from the same distribution. Tutorials in quantitative methods for Psychology. 2008;4(1):13-20.

  16. Pereira Despaigne OL, Palay Despaigne MS, Rodríguez Cascaret A, Neyra Barros RM, Chia Mena MA. Hemoglobina glucosilada en pacientes con diabetes mellitus. MEDISAN. 2015 [acceso: 03/06/2020];19(4):555-61. Disponible en: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1029-30192015000400012&lng=es




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