Allergic conjunctivitis laboratory findings

Allergic conjunctivitis Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Allergic Conjunctivitis from other Diseases
Epidemiology and Demographics
Risk Factors
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Laboratory Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Allergic conjunctivitis laboratory findings On the Web
recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Allergic conjunctivitis laboratory findings All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
National Guidelines Clearinghouse
NICE Guidance
FDA on Allergic conjunctivitis laboratory findings
CDC on Allergic conjunctivitis laboratory findings
Allergic conjunctivitis laboratory findings in the news
Blogs on Allergic conjunctivitis laboratory findings
Directions to Hospitals Treating Allergic conjunctivitis
Risk calculators and risk factors for Allergic conjunctivitis laboratory findings

Overview

Allergic conjunctivitis is usually a clinical diagnosis. Laboratory tests are primarily supportive. They may help in differentiating intrinsic and extrinsic forms of the condition and thus, guide the treatment.

Laboratory findings

Skin prick test

• Intradermal injections of individual allergens are administered to detect sensitivity.
• It is a highly sensitive test [37].
• The result is considered positive when the resulting wheal is at least 3 mm larger than the negative control. Systemic reactions are rare.[38].

IgE estimation

In-vitro tests to detect IgE antibodies to specific allergens are widely used.