• EN
  • Our Centres
    • ISEC Mid Valley
    • ISEC Penang
    • ISEC Sibu
    • ISEC Kuching
    • ISEC Melaka
    • ISEC MYANMAR (YANGON)
    • ISEC JOHOR
    • ISEC Klang
    • ISEC Seremban
    • ASIA PACIFIC EYE CENTRE (APEC)
    • Ipoh Eye Specialist Centre
    • Ipoh Eye Specialist Centre Taiping
    • Ipoh Eye Specialist Centre Manjung
    • Ipoh Eye Specialist Centre Teluk Intan
  • About ISEC
    • About ISEC
      • About ISEC
      • Why Ambulatory Surgical Centre? (ASC)
      • Vision & Mission
      • Research Projects
      • Anti-Bribery and Corruption Policy
    • Our Doctors
      • All Doctors
      • Mid Valley
        • Dr. Wong Jun Shyan
        • Dr. Choong Yee Fong
        • Dr. Michael S. H. Law
        • Dr. Fang Seng Kheong
        • Dr. Lim Kian Seng
        • Dr. Barkeh Jumaat
        • Dr. Kok Howe Sen
        • Dr. Kamala Devi Lingam
        • Dr. Then Kong Yong
        • Dr. Ronald Arun Das
        • Datin Dr. Teoh Su Lin
        • Dr. Cheah May Hong
        • Dr. Chan Jan Bond
        • Dr. Gan Eng Hui
        • Dr. Ho Whye Onn
        • Dr. Yew Chien Voon
        • Dr. Azura Ramlee
        • Dr. Nicholas Goh Ee Pian
        • Dr. Tan Chai Keong
        • Dr. Seow Shu Yee
        • Ms. Anne Tang CK
        • Ms. Tang Shin Ying
        • Ms. Sherlene Kee
        • Dr. Nor Ismarudi Ismail
      • Penang
        • Dr. Alan Ang Jin Soon
        • Dr. Tsiang Ung
        • Dr. Adrian Tey
        • Dr. Neoh Yee Ling
      • Melaka
        • Dr. Robert Yeo Kim Chuan
        • Dr. Danny Wong
        • Dr. Liu Han Seng
        • Dr. Ang Wen Jeat, Peter
        • Dr. Ivan Cheng En Yoo
        • Dr Alene Ng Ker Hsin
      • Sibu
        • Dr. Chua Chung Nen
      • Indah Specialist Eye Centre
        • Dr. Tan Siow Wei
        • Dr. Terrence Teo Bin Hoo
        • Dr. Tham Han Shu
      • Ipoh Eye Specialist Centre
        • Dr. Shin Hoy Choong
        • Dr. Yong Ked Sheong
        • Dr. Chan Suet Mei
        • Dr. Michael Cheng Heng Liang
        • Dr. Jane Foo Mei Li
        • Dr. Long Li Ying
        • Ms. Izzah Azreena
      • kuching
        • Dr. Chua Chung Nen
        • Dr. Intan Anak Gudom
      • ISEC Klang
        • Dr. Nicholas Goh Ee Pian
    • Investor Relations
      • Corporate Website
      • ISECHEALTHCARE Presentation 2022
    • Blog
  • Services
    • Cataract and Intraocular Lens Implants
    • Cornea & Anterior Segment
    • Glaucoma
    • Laser Refractive Surgery
    • Medical Retinal Diseases
    • Oculoplastics
    • Paediatric Ophthalmology
    • Strabismus (Squint) Surgery & Treatment
    • Uveitis
    • Vitreous & Retinal Diseases
  • Patient Information
    • General
      • Contact Lenses
      • Sunglasses
      • Effects of Blue Light on Ocular Health
    • Retina and Vitreous
      • ARMD and CNV
      • Epiretinal Membrane
      • Macular Hole
      • Diabetic Retinopathy
      • Detached and Torn Retina
      • Retinal Vein Occlusion (RVO) – Part 1
      • RVO Prevention and Treatment- Part 2
      • Intravitreal Ocriplasmin
    • Refractive Surgery
      • Lasers Surgery of the Eye
      • LASIK
      • Intracorneal Rings (ICR’s)
      • Photorefractive Keratomy (PRK)
      • Phototherapeutic Keratectomy (PTK)
      • Refractive Error
      • Implantable Contact Lens (ICL)
    • Paediatric Ophthalmology
      • Babies Vision
      • Strabismus (Squint)
      • Children’s Eye Safety
      • Eyeglasses and Children
      • Amblyopia (Lazy Eye)
      • Children Eye Development
      • My Child Squints!
      • Myopia (nearsighted) Control Clinic
    • Presbyopic Correction
      • SUPRACOR LASIK – Laser Presbyopic Correction
      • Multifocal Intraocular Lens Implant for Correction of Presbyopia and Cataract
    • Common Eye Problems / General Interest
      • Allergies and the Eye
      • Conjunctivitis (Pink Eye)
      • First Aid in Eye Injuries
      • Lid Margin Disease
      • Pterygium and Pinguela
      • Smoking and Eye Diseases
      • Video Display Terminal
      • Sports Eye Injuries
      • Chalazion
      • How to insert Eye Drops?
      • Blepharitis
      • Colour Blindness
    • Eye Anatomy
      • Eye Anatomy
    • Glaucoma
      • Glaucoma
    • Cataract and Intraocular Lens Implants
      • Implantable Contact Lens (ICL)
      • State of the Art Cataract Surgery
    • Oculoplastics
      • Eye Lids
      • Orbit
      • Thyroid Eye Disease
      • Ptosis in Children and Adults
      • Ocular Prosthesis
    • Cornea
      • Keratoconus
    • Post Operative Care
      • Post Operative Care
  • Facilities
    • Our Technologies
      • Colvard Puillometry
      • Constellation Vitrectomy System and Small Gauge Vitrectomy Surgery
      • Cornea Specular Microscopy
      • Digital Anterior and Posterior Segment Photography and Angiography
      • Humphrey Automated Perimetry
      • Laser Inferometry A-scan (IOL Master)
      • OCT (Optical Coherence Tomography)
      • Orbscan and Zywave Abberometry
      • Pattern-Scanning (PASCAL) Retinal Laser
      • Phaco Cataract Surgery
      • Reichert TONO-PEN® XL Applanation Tonometer
      • Sonomed Ultrasound Pachymetry
      • Technolas Zyoptix® Excimer Laser
      • VERION
    • Our Facilities
      • Our Facilities
  • Contact
    • Contact Us
    • International Patients
    • For Your First Visit
    • Insurance Guarantee Letters at ISEC
    • Personal Data Protection Notice
    • Career Opportunities
    • FAQ
    • Brochure
      • 中文小册子

EXPERIENCED TEAMEXPERIENCED TEAM What are Red Eyes?: Causes, Symptoms & Treatment

Home / What are Red Eyes?: Causes, Symptoms & Treatment

Key Takeaways

  • There are over 7 potential causes of bloodshot eyes, ranging from benign screen tiredness to more dangerous disorders like acute angle closure glaucoma.
  • Malaysians are more likely to experience red eyes due to their excessive screen time and year-round need for air conditioning.
  • If only one eye is impacted, the cause may be more significant than benign subconjunctival haemorrhages. If you have redness in one eye along with pain, discharge, or blurred vision, you shouldn’t wait.
  • Although decongestant-containing eye drops may temporarily relieve redness, they actually increase the likelihood of red eyes over time.
  • Most red eye situations can be resolved with regular treatment within a period of one to two days. Patients need to visit a doctor if their symptoms continue after two days or they develop sudden pain.

 

Introduction

Red eye condition represents one of the most frequently occurring medical problems which people of all age groups report at Malaysian healthcare facilities. The reason for this is staying up too late or watching TV or laptops regularly. There could be other reasons as well, more serious infections that require immediate treatment. 

Allergic conjunctivitis is seen in 15% to 20% of the global population. However, the humid conditions in Malaysia make it one of the most common allergens in the country. 

Thus, understanding the cause of red eyes is essential. It is said that the majority of red eyes are caused by viruses that account for infectious cases. Let’s understand the symptoms and causes.

 

Why Your Eyes Turn Red?

When the small vessels on the surface of the white part of the eye, which is known as the sclera, get bigger or inflamed, red eyes occur. Under normal circumstances, these vessels cannot be seen. 

However, sometimes staying in stress and any infestation also cause these allergic reactions. These get bigger with blood, causing the eye to have that characteristic red or pink colour. 

Something serious like uveitis or keratitis is likely the reason when the redness is deeper and you see a ring around the coloured part of your eye.

 

What is Bloodshot Eye on One Side?

A bloodshot eye on one side may cause more worry and concern than the presence of both eyes showing signs of redness. The main reason people get this condition is because they have a haemorrhage.

You will sometimes notice a red mark which appears suddenly after you cough or sneeze or lift something heavy. This is what the condition usually looks like. A lot of the time bacterial infections are part of this condition.

The public needs to understand the sources which lead to bloodshot eyes and red eye conditions. 

Also Read: Seeing Clearly: Understanding Cataracts and Modern Treatment Options

 

What are the Common Causes of Bloodshot Eyes?

Below are the following causes for bloodshot eyes:

  • Conjunctivitis (Pink Eye)

People who have conjunctivitis will develop excessive eye tearing which starts after their cold or flu symptoms. 

The symptoms of bacterial conjunctivitis lead to children developing thick yellow or green eye discharge that creates overnight eye crusts. 

These both are highly infectious and spread quickly in public places. So you must be aware of these symptoms especially in schools and in other common areas. 

  • Allergies

When body’s defense system meets any of these allergens and they touch eyes, it releases a chemical called histamine. This histamine makes the blood vessels in your eyes get bigger, which leads to red eyes and itchiness.

The redness in eyes is caused by allergies, always happens in both eyes together with itching. Allergies cause this redness and itchiness in both eyes at the time. Thus, eyes get red and itchy because of histamine.

  • Dry Eye Syndrome

The reason people get dry eyes is that their eyes do not make enough tears or the tears dry up too fast. In Malaysia, the air conditioning is something that people often do not think about when it comes to getting eyes.

  • Digital Eye Strain

People who use devices throughout the day will blink less than their body requires which results in problems with their eye tears. It makes their eyes feel irritated. They get red, tired and gritty. These problems get worse as the day goes on

This is a problem for people in Malaysia, where people are spending more and more time looking at screens. This is happening with people of all ages in Malaysia.

  • Subconjunctival Haemorrhage

When a small blood vessel on the surface of the eye breaks, it makes a spot on the white part of the eye. People usually experience this condition when they cough or strain their bodies or rub their eyes. The condition appears frightening but causes no pain while maintaining normal vision. The condition will resolve itself within one to two weeks.

  • Overuse of Contact Lenses

Low oxygen levels in the cornea result from using contact lenses while you sleep or from using them for longer than is advised.

This causes inflammation, infection, and redness. This is one of the most preventable causes of red eyes.

  • Acute Angle-Closure Glaucoma

A medical emergency. In this condition, the drainage angle of the eye suddenly blocks. This suddenly increases the intraocular pressure. 

The patient experiences severe eye pain, redness of the eyes, blurred vision, halos around the eyes, and nausea. In people of Asian descent, including Malaysians, this condition has been found to be genetically more prone. 

In such a condition, if the mentioned symptoms occur in the patient, immediate medical attention is required. Also, you need to know what happens if there is only bloodshot in one eye. 

Also Read: Battling Dry Eyes: Modern Treatments and Prevention Tips

 

What is the Treatment to Red Eyes?

Treatment varies according to the cause. So, it’s important to avoid buying over-the-counter redness-reducing drops without knowing the underlying cause of the redness, as this might do more harm.

  • For mild redness at home

A cold compress applied over completely closed eyes for 10 minutes reduces inflammation. Naturally lubricating eye drops, available over the counter in Malaysia, may be used to treat dryness and flush out irritants. 

The 20-20-20 rule should be enforced if time is spent in front of laptop screens. Remove your contact lens if you first experience redness and rest your eyes. 

  • Over-the-counter treatments

Antihistamine eye drops containing ketotifen or olopatadine are effective in reducing the appearance of red eyes due to allergies. 

These are available in most pharmacies in Malaysia. One type of eye drop that should be used with caution is a decongestant redness reliever.

These cause blood vessels in the eyes to contract and make the eyes look whiter. These should be used only for 2-3 days.

 

Conclusion

In Malaysia the red-eye symptom is spread among a vast number of people, but this can be treated. 

Major cause for this is the excessive use of digital screens or late nights waking up. The disease can be treated with rest and a little patience and by getting treatment from the clinic. Early diagnosis is almost always the key to quick and easy treatment.

You should visit ISEC for your eye problems because our expert ophthalmologists handle more than 5,000+ eye surgeries and 50,000+ patient visits every year.

ISEC operates multiple centers throughout Malaysia, which provide eye care services that include advanced diagnostic procedures and treatment options for patients with all levels of eye disease severity.

You should schedule your appointment today to receive appropriate treatment before your small eye redness progresses into a serious eye condition.

 

FAQs

  • Are eyes in Malaysia something that can be spread to other people?

Yes, red eyes can be spread if it is because of bacteria or a virus. These things are very contagious, which means they can easily spread from one person to another.

  • What is the quickest way to make my red eyes feel better at home?

The quickest way to make your red eyes feel better at home is to use a compress and some hydrating eye drops.

  • When should I be worried if only one of my eyes is red?

If one of your eyes is red and it does not hurt and this happened all of a sudden without any discharge, it is probably because of a hemorrhage.

  • Is one bloodshot eye harmful?

Red eyes like this are usually nothing to worry about. You should still go see a doctor if you are concerned about your eyes.

Share this:

  • Share on X (Opens in new window) X
  • Share on Facebook (Opens in new window) Facebook


Make an Appointment With Us !

Making an Appointment
MAKE AN APPOINTMENT
Loading...
Our Centres

  • ISEC Mid Valley
  • ISEC Penang
  • SSEC Melaka
  • ISEC Sibu
  • ISEC Myanmar (Yangon)
  • Asia Pacific Eye Centre ( Apec)
  • ISEC Johor
  • Ipoh Eye Specialist Centre
  • ISEC Kuching
  • ISEC Klang
About Us

  • About ISEC
  • Our Services
  • Our Facilities
  • Our Doctors
  • Blog
Contact

  • Contact Us
  • First Visit
  • International Patients
  • Career Opportunities
image

A Joint Commission International (JCI) Accredited Healthcare Facility

image

Global Health and Travel Kuala Lumpur, Malaysia

image

Frost & Sullivan, Kuala Lumpur, Malaysia

Privacy Policy | Terms of Use

KKLIU 2526/2019 © Copyright 2026 ISEC Sdn. Bhd

  • Call
  • Appointment
  • Whatsapp
  • Doctors
  • Direction
WhatsApp
Avatar
ISEC Malaysia
👋 Hello! Need help? Chat with us on WhatsApp.
Start Chat

Loading Comments...

    • EN