Quick Answer: You should see an eye specialist (ophthalmologist) if you experience sudden vision changes, eye pain, flashes of light, new floaters, or persistent redness. Even without symptoms, adults over 40, people with diabetes, and those with a family history of eye disease should have regular eye screenings. In Singapore, you can visit a private ophthalmologist directly without a referral.
10 Signs You Should See an Eye Specialist
Many eye conditions develop gradually without obvious symptoms. Knowing when to seek specialist care can make a significant difference in preserving your vision. Here are ten signs that warrant a visit to an ophthalmologist.
Sudden blurring or loss of vision in one or both eyes
Flashes of light or a sudden shower of new floaters
A shadow or curtain appearing across part of your vision
Persistent eye pain or headache centred around the eye
Red eye that does not improve within a day or two
Double vision
Difficulty seeing at night or increasing glare sensitivity
Haloes around lights
Gradual loss of side (peripheral) vision
Any eye injury, even if it seems minor
Some of these symptoms, particularly sudden vision loss, flashes with floaters, and a curtain over your vision may indicate an emergency such as retinal detachment that requires same-day assessment.
Emergency Eye Symptoms, See a Specialist Today
Certain eye symptoms require urgent or same-day evaluation by an ophthalmologist. These include sudden, painless loss of vision in one eye (which could indicate a retinal artery or vein occlusion), a sudden increase in floaters accompanied by flashes of light (which may signal a retinal tear or detachment), a dark shadow or curtain spreading across your visual field, sudden severe eye pain with nausea and seeing haloes around lights (which could indicate acute angle-closure glaucoma), and chemical exposure or significant trauma to the eye.
If you experience any of these symptoms, do not wait for a routine appointment. Contact an ophthalmologist or go to a hospital emergency department immediately. At IECRC, our specialist ophthalmologists are available for urgent consultations.
Urgent Symptoms: Book Within a Week
Some symptoms are not emergencies but should be evaluated promptly — within a few days to a week. These include a gradual decline in vision that affects daily activities, persistent redness or irritation that does not respond to over-the-counter drops, recurrent eye pain or headaches, new onset of double vision, and difficulty with night driving due to glare or haloes.
These symptoms may indicate developing conditions such as cataracts, glaucoma, dry eye disease, or other treatable disorders. An ophthalmologist can perform a thorough examination to identify the cause and recommend appropriate management.
Routine Symptoms: Schedule a Screening
Even without noticeable symptoms, there are situations where scheduling a routine eye screening is advisable. Many sight-threatening conditions — including glaucoma and diabetic retinopathy — can progress significantly before causing symptoms you would notice.
A 2025 study of approximately 2,000 Singapore seniors aged 60 and above (the PIONEER study) found that 35.8% had at least one undiagnosed eye disease. Among those, 48.1% had undiagnosed glaucoma, and 89.8% had undiagnosed age-related macular degeneration. Undiagnosed eye disease was found to double the odds of visual impairment.
These findings underscore the importance of proactive screening, particularly for residents of Singapore where certain eye conditions are more prevalent.
Age-Based Eye Screening Guidelines for Singapore
The following general guidelines apply to adults and children in Singapore, though your ophthalmologist may recommend a different schedule based on your individual risk factors.
Children: The Health Promotion Board (HPB) conducts annual vision screening for children from Kindergarten 1 through Primary 4. If your child fails a school screening, complains of blurred vision, squints, or holds books very close, a paediatric ophthalmologist assessment is recommended.
Adults aged 20 to 39: A baseline comprehensive eye examination is advisable, particularly if you have high myopia, a family history of eye disease, or diabetes. Otherwise, an eye check every two to three years is generally sufficient.
Adults aged 40 to 59: An eye examination every one to two years is recommended. The Singapore Epidemiology of Eye Diseases (SEED) study showed that cataract prevalence rises to 12.5% in the 50 to 59 age group, and glaucoma prevalence reaches 1.2%. Data from Singapore National Eye Centre also shows an increase in glaucoma diagnoses among younger adults aged 40 to 49, linked to high rates of untreated myopia.
Adults aged 60 and above: Annual eye screening is recommended. The SEED study found that cataract prevalence reaches 37.5% after age 60, while glaucoma prevalence climbs to 4.1% (ages 60 to 69) and 8% (ages 70 to 85).
People with diabetes: Annual diabetic retinal screening is recommended regardless of age. In Singapore, polyclinics offer retinal photography screening for diabetic patients. If abnormalities are detected, referral to an ophthalmologist for further evaluation is essential.
Where to See an Eye Specialist in Singapore
In Singapore, you have two main pathways to see an ophthalmologist. The public route involves getting a referral from a polyclinic to a public hospital eye department such as the Singapore National Eye Centre (SNEC). This route is subsidised, especially for CHAS cardholders, Pioneer Generation, and Merdeka Generation patients, but waiting times can be longer.
The private route allows you to book directly with a private ophthalmologist without a referral. At IECRC, we offer comprehensive eye consultations with experienced specialist ophthalmologists at our clinics. Private consultations typically offer shorter waiting times and continuity of care with a single specialist.
Both public and private ophthalmologist consultations may be eligible for MediSave claims depending on the nature of the consultation and any procedures performed.
Frequently Asked Questions
Can I see an eye specialist directly without a GP referral in Singapore?
Yes. In the private healthcare setting, you can book a consultation with an ophthalmologist directly without a GP or polyclinic referral. A referral is only needed for subsidised treatment at public hospitals such as SNEC.
How much does an eye specialist consultation cost in Singapore?
Consultation fees at private ophthalmology clinics in Singapore generally range from SGD 100 to SGD 250 for an initial visit, depending on the complexity of the examination and any diagnostic tests required. Some consultations and diagnostic procedures may be claimable through MediSave or private medical insurance.
What is the difference between an eye screening and a full eye examination?
An eye screening is a focused check designed to detect specific conditions such as glaucoma, diabetic retinopathy, or cataracts. A full eye examination is more comprehensive and includes visual acuity testing, refraction (spectacle prescription), eye pressure measurement, slit lamp examination, dilated fundus examination, and other tests as clinically indicated. An ophthalmologist can perform both.
Should I see an eye specialist if I have diabetes but no vision problems?
Yes. Diabetic retinopathy often causes no symptoms in its early stages but can lead to serious vision loss if not detected and managed promptly. Annual diabetic retinal screening is recommended for all patients with diabetes, even if your vision feels normal.
References:
More younger adults develop glaucoma because of untreated myopia. The Straits Times, 2025. https://www.straitstimes.com/singapore/health/more-younger-adults-develop-glaucoma-because-of-untreated-myopia
Undiagnosed eye disease in Singapore seniors: PIONEER study. https://www.academicjobs.com/research-publication-news/undiagnosed-eye-disease-in-singapore-seniors-pioneer-study-or-academicjobs-6143
Eye disease screening and detection in Singapore. PMC, 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC12954716/
NUP medical services and diabetic retinal screening. https://www.nup.com.sg/our-services/medical-services
Last reviewed: March 2026
Disclaimer: This article is for general informational purposes only and does not constitute medical advice. Please consult an ophthalmologist for personalised guidance.
