Abstract

Tear-film dynamics were analyzed by a synchronizing recording of double-pass (DP) and pupil retro-illumination (RI) images with contrast sensitivity (CS) measurements. Simultaneous DP and RI images were acquired in three subjects wearing contact lenses while keeping the eye open. Changes in contrast sensitivity for an 18 c/deg green grating were also estimated. From the DP retinal images, the effect of the tear film is described through the objective scattering index (OSI). This presented a negative correlation with the increase in CS during tear-film deterioration (as observed by RI imaging). These results show a relationship between visual outcome degradation due to tear-film breakup and the increase in intraocular scattering. This work shows a combined methodology for the evaluation of tear-film dynamics.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Changes in aberrations and retinal image quality due to tear film dynamics

Kaccie Y. Li and Geunyoung Yoon
Opt. Express 14(25) 12552-12559 (2006)

Direct observation and validation of fluorescein tear film break-up patterns by using a dual thermal-fluorescent imaging system

Tai-Yuan Su, Shu-Wen Chang, Chiao-Ju Yang, and Huihua Kenny Chiang
Biomed. Opt. Express 5(8) 2614-2619 (2014)

Study of the tear topography dynamics using a lateral shearing interferometer

Alfredo Dubra, Carl Paterson, and Christopher Dainty
Opt. Express 12(25) 6278-6288 (2004)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription