scholarly journals The relationship between the cone photoreceptor mosaic and visual acuity in normal observers and blue cone monochromat carriers

2010 ◽  
Vol 8 (17) ◽  
pp. 20-20
Author(s):  
E. A. Rossi ◽  
J. Carroll ◽  
A. Roorda
Keyword(s):  
Visual Acuity ◽  
Cone Photoreceptor ◽  
The Relationship ◽  
Photoreceptor Mosaic

scholarly journals Association of foveal avascular zone with the metamorphopsia in epiretinal membrane

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Hideki Shiihara ◽  
Hiroto Terasaki ◽  
Shozo Sonoda ◽  
Naoko Kakiuchi ◽  
Hidetaka Yamaji ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Superficial Layer ◽  
University Hospital ◽  
Foveal Avascular Zone ◽  
Service Unit ◽  
Corrected Visual Acuity ◽  
Avascular Zone ◽  
The Mean ◽  
The Relationship ◽  
Best Corrected Visual Acuity

Abstract This study was to investigate the relationship between the metamorphopsia and foveal avascular zone (FAZ) parameter in eyes with epiratinal membrane (ERM). We studied patients with an ERM visited retinal service unit at the Kagoshima University Hospital or Shirai Hospital. The best-corrected visual acuity (BCVA), and the degree of metamorphopsia by M -CHARTS™ were evaluated. The 3 × 3 mm optical coherence tomography angiography (OCTA) images of the superficial layer were obtained. Area (mm2), the circularity, eigen value were calculated using ImageJ software. The relationship between visual function, such as best corrected visual acuity (BCVA) and metamorphopsia, and FAZ parameters were studied by Pearson’s correlational coefficient. Fifty-four eyes of 51 patients (24 men and 27 women) with an ERM were studied. The mean age of the patients was 69.6 ± 8.20 years. The mean BCVA and metamorphopsia score was 0.31 ± 0.29 logMAR units and 0.49 ± 0.42. There was no significant relationship between BCVA and FAZ parameters. While, metamorphopsia score was significantly and negatively correlated with all of FAZ parameters (area R = − 0.491, P < 0.001; circularity R = − 0.385, P = 0.004; eigenvalue ratio R = − 0.341; P = 0.012). Multiple regression analysis showed the FAZ area was solely and significantly correlated with metamorphopsia score (β − 0.479, P < 0.001). The size but not the shape of the FAZ was significantly correlated with the degree of metamorphopsia suggesting that it could be an objective parameter of metamorphopsia in ERM patients.

The relationship between indoor and outdoor Snellen visual acuity in cataract patients

1988 ◽  
Vol 14 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Albert C. Neumann ◽  
George R. McCarty ◽  
Thomas O. Steedle ◽  
Donald R. Sanders ◽  
Marsha G. Raanan
Keyword(s):  
Visual Acuity ◽  
Snellen Visual Acuity ◽  
The Relationship ◽  
Cataract Patients ◽  
Indoor And Outdoor

scholarly journals The Cone Photoreceptor Mosaic in Aniridia

2019 ◽  
Vol 3 (6) ◽  
pp. 523-534 ◽  
Author(s):  
Hilde R. Pedersen ◽  
Maureen Neitz ◽  
Stuart J. Gilson ◽  
Erlend C.S. Landsend ◽  
Øygunn Aas Utheim ◽  
...  
Keyword(s):  
Cone Photoreceptor ◽  
Photoreceptor Mosaic

The Relationship between Visual Acuity, Subjective Vision, and Willingness to Purchase Simultaneous-image Contact Lenses

2019 ◽  
Vol 96 (4) ◽  
pp. 283-290 ◽  
Author(s):  
Monica Jong ◽  
Daniel Tilia ◽  
Jennifer Sha ◽  
Jennie Diec ◽  
Varghese Thomas ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contact Lenses ◽  
Willingness To Purchase ◽  
The Relationship
Sign in / Sign up

Export Citation Format

Share Document