Retinal Examination: When Does a Doctor Request It?

Last updated: 13/05/2026

A retinal examination is one of the important eye tests used to check the health of the back part of the eye, especially when a person has blurred vision, diabetes, high blood pressure, or a family history of retinal diseases. This examination helps the doctor see the retina, optic nerve, and the tiny blood vessels inside the eye. It may also detect early changes that the patient may not notice at first.

According to trusted medical references, pupil dilation allows the doctor to examine the inner parts of the eye more clearly. It may help detect conditions such as diabetic retinopathy, glaucoma, and macular degeneration.

 

If you are not sure whether you need a retina screening, you can contact Magrabi’s team via WhatsApp to ask about the most suitable examination for your condition and the right department to visit.

 

What is a retinal examination?

A retinal examination is a medical assessment performed by an eye doctor to check the health and safety of the retina. The retina is the light-sensitive layer at the back of the eye, and its health is important for clear vision.

A retina exam may include a fundus examination after pupil dilation, retinal imaging, or advanced tests such as OCT, depending on the patient’s condition. Mayo Clinic explains that diagnosing retinal diseases depends on a comprehensive eye examination and looking for any changes inside the eye.

Doctors at Magrabi Hospitals explain that retinal examination is not only for people who already have obvious vision problems. In some cases, the retina may be affected without early symptoms, especially in patients with diabetes or high blood pressure.

 

What is a retinal examination device?

There is no single retinal examination device that suits all cases. The eye doctor may use more than one device depending on the purpose of the examination and the patient’s condition. The doctor may need a device that helps directly view the fundus, another device that captures a clear image of the retina, or a more detailed device that shows the inner layers of the retina.

The main types of retina screening devices that may be used during the exam include:

• Ophthalmoscope: Helps the doctor examine the back part of the eye and see the retina and optic nerve.
• Fundus camera: Captures images of the retina to monitor changes over time.
• OCT device: Provides detailed cross-sectional images of the retinal layers and is used when a more precise evaluation is needed.
• Slit lamp with special lenses: Helps the doctor examine the retina more clearly during the clinical exam.

Doctors at Magrabi Hospitals explain that choosing a retinal examination device is not random. It depends on the symptoms, the patient’s age, the presence of diseases such as diabetes or high blood pressure, and the results of the initial examination. In some cases, a simple eye exam may be enough, while in others, the doctor may request imaging or additional tests for a more accurate assessment.

 

What are the reasons for needing a retinal examination?

A retina exam is not linked to one specific reason only. A doctor may recommend it to check eye health or to diagnose certain symptoms.

The most common situations that may require this examination include:

• Having diabetes, especially after several years of diagnosis.
• High blood pressure or blood vessel disorders.
• Blurred or reduced vision without a clear cause.
• Severe nearsightedness.
• Previous eye injury.
• A family history of retinal diseases or glaucoma.
• Follow-up for known conditions such as diabetic retinopathy or macular degeneration.
• Eye assessment before or after certain eye surgeries.

According to the Saudi Ministry of Health, patients with diabetes should follow the eye examination schedule recommended by their healthcare provider. Annual eye exams for type 1 diabetes should begin within 5 years of diagnosis, while annual exams for type 2 diabetes should begin immediately after diagnosis.

 

What symptoms of retinal problems may require examination?

Some retinal diseases may begin without clear symptoms. This is why regular eye examinations can help detect changes early. However, there are signs that require seeing an eye doctor when they appear, including:

• Blurred or hazy vision.
• A shadow or dark curtain in part of the visual field.
• Difficulty reading or seeing fine details.
• A sudden change in visual clarity.
• Difficulty seeing at night.
• Straight lines appearing wavy or distorted.
• Reduced vision in one or both eyes.

Some signs of retinal detachment may appear suddenly. In this case, the Saudi Ministry of Health advises seeing an eye doctor or visiting the emergency department promptly.

 

How are retinal problems diagnosed?

Diagnosis usually begins with the doctor asking about symptoms, medical history, medications, diabetes or high blood pressure, and any previous eye injuries. After that, the doctor chooses the most suitable type of examination.

Diagnostic steps may include:

Examination	What it shows
Vision test	Measures how clearly you can see near and far objects.
Pupil dilation	Helps the doctor see the retina and fundus more clearly.
Fundus examination	Shows the condition of the retina, optic nerve, and blood vessels.
Retinal imaging	Documents an image of the retina to monitor future changes.
OCT	Provides a detailed cross-sectional image of the retinal layers.
Fundus fluorescein angiography	May be used to assess blood vessels when needed.
Electroretinography	May refer to specialized tests that assess retinal function in certain cases.

The National Eye Institute explains that a dilated eye exam may include visual acuity testing, visual field assessment, pupil response evaluation, eye pressure measurement, and examination of the inner parts of the eye after dilation drops are applied.

OCT is a non-invasive imaging test that provides high-resolution cross-sectional images of the tissues at the back of the eye. It helps the doctor assess the retina and make decisions about follow-up or treatment.

 

If you want to understand the next step after a retinal examination, learn more about retina services at Magrabi Hospitals and how they may help your condition.

 

Retinal examination for people with diabetes and older adults

A retina exam is especially important for people with diabetes and older adults, because some retinal changes may begin without pain or clear symptoms. Regular examination helps detect any problem early, before it affects vision more seriously.

For people with diabetes, the examination helps:

• Monitor the effect of blood sugar on the tiny blood vessels inside the eye.
• Detect early signs of diabetic retinopathy.
• Evaluate the cause of blurred or reduced vision if it appears suddenly.
• Determine whether the patient needs follow-up only or suitable treatment.
• Reduce the risk of delayed diagnosis, especially when there are no clear symptoms.

A patient with diabetes should see an eye doctor if they notice:

• Blurred vision.
• Difficulty reading or seeing details.
• A sudden change in visual clarity.
• Reduced vision in one or both eyes.

Older adults may also need a retina exam because some eye problems become more common with age. This does not mean every older person will develop a retinal problem, but follow-up helps provide reassurance and detect changes early.

A retina exam may be useful for older adults in the following cases:

• Gradual decline in vision.
• Difficulty reading or recognizing faces.
• Straight lines appearing wavy.
• A family history of retinal diseases or glaucoma.
• High blood pressure or other chronic diseases.
• The need for regular follow-up after previous eye surgery or treatment.

The eye doctor determines how often a retinal examination is needed based on the patient’s age, general health, and previous test results. Doctors at Magrabi Hospitals explain that regular examination is not a worrying procedure. It is a simple step that helps protect vision and check eye health.

 

How are retinal diseases treated if the examination detects a problem?

Having a retinal examination does not necessarily mean the patient needs treatment. In many cases, the exam is performed for reassurance or follow-up only. If the examination detects a problem, the doctor determines the treatment based on the type of condition, its severity, and the patient’s overall health.

Treatment or follow-up options may include:

• Regular monitoring if the changes are mild.
• Controlling diabetes, blood pressure, and cholesterol when risk factors are present.
• Laser treatment in some cases of retinal tears or diabetic retinopathy.
• Eye injections in certain cases, such as swelling in the central part of the retina.
• Surgery in cases such as retinal detachment.
• Low-vision aids when there is chronic visual impairment.

Mayo Clinic explains that treatment for retinal diseases aims to slow disease progression, preserve vision, or improve it depending on the case. Options may include laser treatment, treatment of abnormal blood vessels, freezing therapy, or other procedures determined by the doctor.

Doctors at Magrabi also explain that treatment differs from one patient to another. The right plan cannot be chosen without a clinical examination and accurate diagnosis.

 

How can retinal problems be prevented?

Not all retinal diseases can be prevented, but some risks can be reduced through regular eye care and general health care. These steps may help support retinal health:

• Commit to regular eye examinations, especially for patients with diabetes.
• Control blood sugar levels according to the doctor’s instructions.
• Monitor blood pressure and cholesterol.
• Stop smoking.
• Wear protective eyewear during activities or sports that may expose the eye to injury.
• See a doctor if new floaters or flashes appear.
• Avoid using eye drops without a prescription.
• Maintain a healthy lifestyle and balanced diet.

According to the Saudi Ministry of Health, preventing diabetic eye disease includes good control of diabetes, blood pressure, and cholesterol, stopping smoking, and maintaining scheduled eye examinations.

 

When should you see a doctor?

Doctors at Magrabi Hospitals recommend seeing an eye doctor if symptoms persist, worsen, or start affecting reading, driving, work, or screen use. It is not recommended to wait for symptoms to improve on their own, especially if the change in vision is sudden or unusual.

You should see a doctor as soon as possible if you notice any of the following signs:

• Sudden or worsening blurred vision.
• Black spots or thread-like shapes moving in front of the eye.
• Flashing lights or repeated light flashes.
• A dark area or shadow in the field of vision.
• A feeling that a curtain is covering part of the eye.
• Sudden vision loss in one eye.
• Sudden difficulty reading or seeing details.
• Straight lines appearing wavy.
• Eye pain with a change in visual clarity.
• Severe redness or uncomfortable sensitivity to light.

A retinal examination should also not be delayed if:

• You have diabetes.
• You have high blood pressure.
• You have severe nearsightedness.
• You had a direct eye injury.
• You have a family history of retinal diseases or glaucoma.
• You previously had eye surgery.
• Your doctor recommended regular follow-up due to a previous retinal problem.

Patients with diabetes or high blood pressure may need examination even without clear symptoms, because some changes inside the retina can begin silently. Early examination helps the doctor detect these changes before they clearly affect vision. Therefore, you can visit the ophthalmology department at Magrabi Hospitals for a comprehensive eye examination and to discuss the best follow-up steps with a specialist.

 

Frequently Asked Questions

How is a retinal examination performed?

The doctor begins by measuring vision and asking about symptoms and medical history. Then, dilation drops may be used to widen the pupil. The doctor examines the fundus and retina using a special device, and may request retinal imaging or OCT depending on the case.

Is a retina exam painful?

It is usually not painful. The patient may feel mild discomfort from light or temporary blurred vision after pupil dilation. These effects are usually temporary. It is recommended to bring sunglasses and avoid driving until vision improves.

When does a patient with diabetes need a retinal examination?

A patient with diabetes needs regular examination depending on the type of diabetes and the doctor’s recommendation. The Saudi Ministry of Health recommends annual eye exams for type 2 diabetes immediately after diagnosis, and for type 1 diabetes within 5 years of diagnosis.

What is retinal imaging?

Retinal imaging is the process of capturing a digital image of the back part of the eye, including the retina and blood vessels. It helps the doctor document the condition and compare images over time, especially for patients with diabetes or those who need regular follow-up.

What is the difference between fundus examination and OCT?

A fundus examination allows the doctor to directly view the retina and optic nerve. OCT is a detailed cross-sectional imaging test that shows retinal layers and may help assess macular problems, swelling, or certain retinal diseases.

How long does a retinal examination take?

The duration varies depending on the type of exam. A basic exam may take a short time, but dilation drops need time to work. The visit may take longer if the doctor needs retinal imaging, OCT, or additional tests.

 

For an accurate medical assessment before having a retinal examination, book an appointment with Magrabi’s specialized doctors by phone or through the booking form.

 

A retinal examination helps check retinal health and detect changes that may not cause early symptoms. It becomes more important for patients with diabetes, older adults, and people who experience symptoms such as light flashes, floaters, or blurred vision. Doctors at Magrabi Hospitals recommend not delaying an eye doctor visit when new symptoms appear or when any change in vision persists, because early diagnosis helps determine the right follow-up or treatment.

 

References

• American Academy of Ophthalmology: Comprehensive Adult Medical Eye Evaluation.
• Cambridge University Hospitals NHS: Optical coherence tomography and retinal photography.
• Saudi Ministry of Health: Retinal detachment and its symptoms.
• Primary Health Care Corporation Qatar: Ophthalmology Services.
• Egypt Ministry of Communications and Information Technology: Using artificial intelligence for early detection of diabetic retinopathy.

 

Medically reviewed by Dr. Lawrence (Abdullah) Brown.

 

Medical Disclaimer: The information in this article is for health education purposes only and does not replace a visit to a doctor or consultation with a qualified specialist. Magrabi doctors recommend seeking medical evaluation for an accurate diagnosis and appropriate treatment plan.