Influence of sampling window size and orientation on parafoveal cone packing density
نویسندگان
چکیده
منابع مشابه
Influence of sampling window size and orientation on parafoveal cone packing density.
We assessed the agreement between sampling windows of different size and orientation on packing density estimates in images of the parafoveal cone mosaic acquired using a flood-illumination adaptive optics retinal camera. Horizontal and vertical oriented sampling windows of different size (320x160 µm, 160x80 µm and 80x40 µm) were selected in two retinal locations along the horizontal meridian i...
متن کاملThe reliability of parafoveal cone density measurements
BACKGROUND Adaptive optics scanning light ophthalmoscopy (AOSLO) enables direct visualisation of the cone mosaic, with metrics such as cone density and cell spacing used to assess the integrity or health of the mosaic. Here we examined the interobserver and inter-instrument reliability of cone density measurements. METHODS For the interobserver reliability study, 30 subjects with no vision-li...
متن کاملRepeatability of in vivo parafoveal cone density and spacing measurements.
PURPOSE To assess the repeatability and measurement error associated with cone density and nearest neighbor distance (NND) estimates in images of the parafoveal cone mosaic obtained with an adaptive optics scanning light ophthalmoscope (AOSLO). METHODS Twenty-one participants with no known ocular pathology were recruited. Four retinal locations, approximately 0.65° eccentricity from the cente...
متن کاملInterocular symmetry of parafoveal photoreceptor cone density distribution.
PURPOSE To investigate the variation and symmetry of cone density distribution along the nasal and temporal retina of fellow eyes. METHODS An adaptive optics retinal camera (rtx1; Imagine Eyes) was used to obtain images of the parafoveal cone mosaic in 20 healthy subjects. Cone density was estimated at 250, 420, 760, and 1,300 μm eccentricity from the fovea along the nasal and temporal retina...
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the aim of the present study was to determine the in?uence of presence or absence of corpus luteum (cl) on hormonal and metabolites composition of follicular ?uid (ff) harvested from different sized follicles and its relationship with blood serum concentrations in sanjabi ewes. ovaries and blood samples were collected from 60 clinically healthy adult ewes (sanjabi breed) 1–3 years of age in dio...
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ژورنال
عنوان ژورنال: Biomedical Optics Express
سال: 2013
ISSN: 2156-7085,2156-7085
DOI: 10.1364/boe.4.001318