Letter contrast sensitivity function of the eye
نویسندگان
چکیده
منابع مشابه
Contrast Sensitivity and Eye Drops
Purpose: To evaluate the influence of commonly used eye drops on contrast sensitivity (CS). Design: Prospective study. Participants: One hundred twenty volunteers were enrolled. Methods: The CS of ophthalmologically healthy individuals was evaluated at baseline examination before the instillation, 20 and 40 minutes after the instillation of diclofenac sodium and commonly used anti-glaucoma eye ...
متن کاملImproving the design of the letter contrast sensitivity test.
PURPOSE To develop a small-format letter contrast sensitivity test with improved accuracy, suitable for portable use and near testing, and having a simple and unambiguous scoring system that can be used with reference to existing norms. METHODS A near test, printed on resin-coated paper and mounted on plastic was developed by using Sloan letters, with 0.04 log unit contrast decrements between...
متن کاملAn evaluation of the Mars Letter Contrast Sensitivity Test.
PURPOSE The Mars Letter Contrast Sensitivity Test (initially known as the Lighthouse Letter Contrast Sensitivity Test) is similar in design to the Pelli-Robson Test but may offer several advantages. This study evaluates the repeatability of the Mars test and its agreement with the Pelli-Robson test in normal and low-vision subjects. METHODS Fifty-four subjects were tested (age 22-86 years), i...
متن کاملContrast Sensitivity Function of Sound Eye after Occlusion Therapy in the Amblyopic Children
To verify the changes of mesopic and photopic contrast sensitivity function of sound eye whose visual acuity was kept the same after occlusion therapy in the amblyopic children. Fourteen sound eyes of amblyopic children (mean; 7.67 years; S.D., 1.50 years) who kept their visual acuity the same after the occlusion therapy were tested. The children had 6 hours of part-time patch therapy for 3 mon...
متن کاملPredicting individual contrast sensitivity functions from acuity and letter contrast sensitivity measurements
Contrast sensitivity (CS) is widely used as a measure of visual function in both basic research and clinical evaluation. There is conflicting evidence on the extent to which measuring the full contrast sensitivity function (CSF) offers more functionally relevant information than a single measurement from an optotype CS test, such as the Pelli-Robson chart. Here we examine the relationship betwe...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica Scandinavica
سال: 1998
ISSN: 1395-3907
DOI: 10.1034/j.1600-0420.1998.760314.x