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Clinical Trial Summary

To investigate the causal relationship of Sicca dry eye patients with presbyopic refractive error and accommodative spasm.

Clinical Trial Description

Dry eye is a disease of the ocular surface. Severe dry eye produce symptom of discomfort in and around the eye that drastically affect life quality of the patient. OSDI index is retrieve from a questionnaire specific for these dry eye symptoms, it is an internationally accepted level to reveal the severity of Dry eye disease. One part of the symptom is pain and soreness around the eye. Hyperalgesia is an increase response to a stressful/ noxious stimulus whereas allodynia is a painful response to a normally innocuous stimulus. Our hypothesis state that Sicca Dry eye upregulated inflammatory cytokine in the eye has pre-sensitized the nociceptor nerve fiber in the cornea and orbit, therefore the normally innocuous effort of accommodation and ciliary muscle contraction produce intolerable retro-orbital eye pain, which drives the patient to seek medical attention, on presentations these patient show an elevated OSDI and Pain Index (PI). ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05120401
Study type Observational
Source Far Eastern Memorial Hospital
Contact Elsa LC Mai, MPH, Dr.
Phone 886-89667000
Email [email protected]
Status Recruiting
Start date November 5, 2021
Completion date October 15, 2025

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