Nuevo instrumento para medir la sensibilidad al contraste sin y con deslumbramiento
ISSN: 0365-6691
Any de publicació: 2003
Volum: 78
Número: 6
Pàgines: 331-333
Tipus: Article
Altres publicacions en: Archivos de la Sociedad Española de Oftalmologia
Resum
Purpose/Method: To measure the photopic contrast sensitivity, with and without glare, by means of a new instrument. Seventy eight right eyes of 49 young adults and of 29 adults subjects between 35 and 55 years were studied. Contrast sensitivity was measured with the Contrast Glaretester CGT-1000 (Takagi, Japan) that determines the contrast threshold by means of an automated strategy for 6 spatial frecuencies. Results/Conclusions: The values of contrast sensitivity were similar to those obtained with other clinical tests. Contrast sensitivity, without and with glare, decreased significantly with the age. However, glare did not modify the contrast sensitivity under photopic conditions.
Referències bibliogràfiques
- Elliot, DB. (1998). Borish's clinical refraction. WB Saunders. Orlando.
- Owsley, C, Sekuler, R, Siemsen, D. (1983). Contrast sensitivity throughout adulthood. Vision Res. 23. 689-699
- Superstein, R, Boyaner, D, Overbury, O, Collin, C. (1997). Glare disability and contrast sensitivity before and after catatact surgery. J Cataract Refract Surg. 23. 248-253
- Superstein, R, Boyaner, D, Overbury, O. (1999). Functional complaints, visual acuity, spatial contrast sensitivity, and glare disability in preoperative and postoperative cataract patients. J Cataract Refract Surg. 25. 575-581
- Maeda, N, Sato, S, Watanabe, H, Inoue, Y, Fujikado, T, Shimomura, Y. (2000). Prediction of letter contrast sensitivitiy using viokeratographic indices. Am J Ophthalmol. 129. 759-763