Validation of the Ocular Pain Assessment Survey Instrument With Rasch Analysis.

ABSTRACT:

Purpose

The Ocular Pain Assessment Survey (OPAS) has been used to quantify chronic ocular pain and quality of life (QOL). We aim to investigate the psychometric properties of individual OPAS items with the Rasch analysis in an Asian population of dry eye disease and neuropathic corneal pain (NCP).

Methods

Question responses were obtained from 196 patients; 138 with dry eye disease (DED) and 58 with NCP, at the Singapore National Eye Centre. Item hierarchy, item fit statistics, item separation, reliability indices, and Yen's Q3 values were calculated.

Results

Individual dimensions that quantify eye pain levels in the past 24 hours and QOL showed good discriminative ability according to their person separation index values. However, individual dimensions that measured e

SUBMITTER: Ng DM 

PROVIDER: S-EPMC11838117 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature