Diseases Detected by Eye Exams
The eye is the only place in the human body where a doctor can observe live blood vessels and nerve tissue without making an incision. Because of this, a comprehensive eye exam can detect systemic health issues long before physical symptoms arise.
Systemic Conditions Visible in the Eye
1. Diabetes (Diabetic Retinopathy)
High blood sugar causes the tiny blood vessels in the retina to leak blood or yellow fluid. Eye doctors are frequently the first medical professionals to diagnose undiagnosed diabetes.
2. Hypertension (High Blood Pressure)
High blood pressure can cause the blood vessels in the eye to kink, twist, or cross over each other in a pattern known as "AV nicking."
3. High Cholesterol
A yellow or blue ring around the cornea (called arcus senilis) can indicate high cholesterol, especially in patients under the age of 40.
4. Multiple Sclerosis (MS)
Inflammation of the optic nerve (optic neuritis) is often one of the very first clinical signs of Multiple Sclerosis.
While online tests are great for visual acuity, they cannot replace the health screening of a dilated clinical exam.
Medical Disclaimer
This article is provided for educational and informational purposes only. CorrectLens does not provide medical diagnosis, treatment, or prescription services.
Online vision tests measure visual acuity (clarity of sight) and basic visual performance. They cannot detect eye diseases such as glaucoma, cataracts, macular degeneration, retinal disorders, or neurological conditions.
A comprehensive eye examination performed by a licensed eye care professional is required for medical diagnosis and prescription accuracy.