A series of retinal image degrading filters was evaluated by measuring the contrast sensitivity function of four human subjects through the litters (residual CSF). The acrylic filters, with regularly spaced cross‐hatches, produced progressively more reduction in the residual CSF as the density of the cross hatching increased. For some of the fillers there was a selective toss of a narrow band of spatial frequencies as a result of diffraction effects. This experiment serves to further emphasize the need to rule out optical causes of such notches in the CSF before making a diagnosis of neurological dysfunction.
|Number of pages||4|
|Journal||Ophthalmic and Physiological Optics|
|Publication status||Published - Apr 1993|
ASJC Scopus subject areas
- Sensory Systems