Glaucoma is a group of eye diseases that cause damage to the optic nerve, Trusted Eye Doctors in Thrissur which is essential for vision. This damage is often linked to increased pressure inside the eye (intraocular pressure).
It is one of the leading causes of irreversible blindness, especially when not detected early.
Why Glaucoma Occurs
Glaucoma typically occurs when there is a buildup of fluid inside the eye, leading to increased pressure that damages the optic nerve.
However, it can also occur even with normal eye pressure in some cases.
Types of Glaucoma
Primary Open-Angle Glaucoma
The most common type, where drainage channels become less efficient over time.
Angle-Closure Glaucoma
A sudden blockage of fluid drainage causing a rapid rise in eye pressure. This is a medical emergency.
Normal-Tension Glaucoma
Optic nerve damage occurs despite normal eye pressure.
Secondary Glaucoma
Caused by other conditions such as injury, inflammation, or diseases.
Risk Factors
Age (over 40)
Family history
High eye pressure
Diabetes
Long-term steroid use
Severe nearsightedness
Conditions like Diabetic Retinopathy may increase risk.
Symptoms of Glaucoma
Symptoms depend on the type and stage.
Early Stages
Often no noticeable symptoms (especially in open-angle glaucoma).
Advanced Stages
Gradual loss of peripheral vision
Tunnel vision
Acute Angle-Closure Symptoms
Severe eye pain
Sudden vision loss
Headache
Nausea and vomiting
Halos around lights
Diagnosis
Glaucoma is diagnosed through a comprehensive eye examination.
Tests may include:
Measurement of intraocular pressure
Optic nerve evaluation
Visual field test
Gonioscopy (to examine drainage angle)
Early detection is key to preventing vision loss.
Treatment Options
Glaucoma damage is irreversible, but treatment can slow progression.
Eye Drops
Reduce eye pressure by decreasing fluid production or improving drainage.
Oral Medications
Used in some cases to control pressure.
Laser Treatment
Helps improve fluid drainage.
Surgery
Performed when other treatments are not effective.
Prevention and Eye Care
Get regular eye exams
Monitor eye pressure
Follow prescribed treatments strictly
Manage underlying conditions like diabetes
Avoid skipping medications
Final Thoughts
Glaucoma is a silent but serious eye condition that can lead to permanent vision loss if untreated. Because it often has no early symptoms, regular eye checkups are essential.
Early diagnosis and consistent treatment can help preserve vision and maintain quality of life.
