Tracking the Reflective Light Particles Spreading on the Cornea: An Emerging Assessment for Tear Film Homeostasis.

ABSTRACT:

Purpose

To implement an emerging noninvasive approach for assessing the dynamic tear film (TF) homeostasis.

Methods

The video records of dynamic TF from 12 healthy orthokeratology lens wearers were obtained by a clinically available TF analyzer and decomposed as image sequences. The trajectories of TF particles were analyzed by two tracking models, the full-span model (FSM) and the fixed-duration model (FDM). FSM tracked a particle for a complete opening blink cycle, while FDM tracked 1 second of the same cycle. A power-law fitting operation [Formula: see text] was used to extract homeostasis markers based on the tracking model for each subject.

Results

Comparing two tracking models (N = 6), only one subject had statistical difference in averaged momentary movi

SUBMITTER: Lai HY 

PROVIDER: S-EPMC6549563 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature