The human eye can detect different levels of illumination, from bright to very dim light, and the visual system can adapt its sensitivity to these conditions 1. Interestingly, it has been observed ...

Please provide your email address to receive an email when new articles are posted on . We find the definition of “subjective refraction” as proposed by Dr. Louis Catania in his commentary, ...

To compare subjective refraction under binocular and monocular conditions and to investigate the clinical factors affecting the difference in spherical refraction between the two conditions. We ...

Please provide your email address to receive an email when new articles are posted on . Described as “a stenopaeic slit refraction system in a binocular telescopic optometer calibrated to measure ...