Fundoscopy Ophthalmoscopy

Overview

Fundoscopy, also called ophthalmoscopy, is a simple eye exam. A doctor uses a special light and lens to look at the back of your eye, called the retina. This helps check your optic nerve, blood vessels, and macula (the part of the eye that gives sharp central vision). It is an examination, not a treatment.

Yes. Fundoscopy is a very common part of a routine eye exam and is often used in diabetes and blood pressure checks.

Anyone can have fundoscopy. It is especially used for people with diabetes, high blood pressure, eye symptoms, a family history of eye disease, older adults, and some babies born prematurely.

Symptoms

Common symptoms

• Fundoscopy itself does not cause symptoms; it is done to check for eye problems.
• Blurred or reduced vision
• New floaters (spots or cobwebs) or flashes
• Distorted or wavy vision
• Eye pain or redness
• Headaches with visual changes
• Routine check for diabetes or high blood pressure

Symptoms in children

• A white glow in the pupil seen in photos
• A squint or crossed eyes
• Poor tracking or seeming not to see well
• Follow-up for babies born prematurely
• Eye injury or a suspected eye problem

Symptoms in older adults

• Gradual vision loss
• Difficulty seeing at night or in low light
• Distorted or wavy vision
• More floaters than usual
• Routine checks for diabetes, glaucoma, or macular health

Causes

Main causes

• Checking for diabetes-related eye changes
• Checking for effects of high blood pressure
• Checking for glaucoma (pressure damage to the optic nerve)
• Checking for macular degeneration (age-related damage to central vision)
• Checking for retinal detachment
• Checking for eye infection or inflammation
• Checking the optic nerve for other problems
• Monitoring certain medicines that can affect the eye

Risk factors

• Diabetes
• High blood pressure
• Older age
• Family history of glaucoma or retinal disease
• Smoking
• High myopia (short-sightedness)
• Previous eye injury or eye surgery
• Premature birth
• Taking medicines that can affect the eye — ask your clinician

When to see a doctor

See a doctor urgently if:

• Sudden changes in vision
• A new dark curtain or shadow in your vision
• Eye pain with redness or light sensitivity
• A sudden increase in floaters or flashes
• Any eye symptoms after an injury

Book a routine appointment if:

• You have diabetes and are due your yearly eye check
• You have a family history of glaucoma
• You notice more floaters than usual but no sudden change
• You take a medicine that can affect the eye and need monitoring
• You have high blood pressure and your clinician advises an eye check

Diagnosis

Fundoscopy is the examination itself. It may be done in a GP office, eye clinic, or hospital. Your clinician may use drops to widen your pupil and then look at the back of your eye with a special light.

Tests that may be done

• Visual acuity test — reading letters on a chart
• Pupil dilation with eye drops
• Direct ophthalmoscopy — a light held close to your eye
• Slit-lamp biomicroscopy — a microscope with a bright light
• Retinal photography — a photo of the back of the eye
• Optical coherence tomography (OCT) — a detailed scan of the retina, if needed

What to expect at your appointment

The exam usually takes a few minutes, but you may wait for drops to work. The light can be bright. If drops are used, your near vision may be blurry and you may be sensitive to light for about 4 to 6 hours. Bring sunglasses and ask someone to drive you home. Tell staff if you have eye pain, a headache, nausea, or see halos after the test.

Treatment

Fundoscopy is an exam, not a treatment. The results help your clinician decide whether you need more tests or treatment. Many findings can be managed or watched closely.

Self-care at home

• Follow any instructions about eye drops.
• Bring sunglasses and arrange a ride if your pupils will be dilated.
• Do not rub your eyes if they feel irritated.
• Tell the clinic about new pain, severe headache, nausea, or vision changes after the test.

Medical treatments

If a problem is found, treatment depends on the cause. It may include watching and regular checks, eye drops, laser treatment, special injections, or surgery. Your eye specialist will explain the options and what is right for you.

When is surgery considered?

Surgery may be needed for some eye problems found during fundoscopy, such as a detached retina or severe bleeding. It is not needed for the test itself. Your specialist will discuss risks and benefits.

Living with this condition

If the exam finds an eye condition, you may need regular eye checks and treatment. Keep your appointments and tell your care team about any new vision changes.

Lifestyle tips

• Manage blood sugar and blood pressure if you have diabetes or high blood pressure.
• Wear safety glasses for risky work or sports.
• Do not smoke, or ask for help to stop.
• Use good lighting and keep up regular eye checks.

Diet and exercise

A balanced diet rich in vegetables and fruit and regular physical activity support general health and blood vessel health. Ask your clinician what activity is safe for you.

Mental health and emotional wellbeing

Eye tests and waiting for results can make people feel anxious. Talk to your clinician about your worries. If you feel very anxious or low, ask for support. If you are in crisis or thinking of harming yourself, call your local emergency number or a local crisis service right away.

Prevention

You cannot prevent the need for fundoscopy itself, but you can lower the risk of some eye problems by managing diabetes and blood pressure, not smoking, and having regular eye checks.

Vaccines

There is no vaccine for fundoscopy. Some infections that can affect the eye can be prevented by routine vaccines; ask your healthcare provider.

Screening programmes

Regular eye screening is important for people with diabetes and for some people with high blood pressure or a family history of glaucoma. Ask your clinician how often you should be checked.

Complications

If left untreated

• Some eye diseases, such as glaucoma and diabetic eye disease, can damage vision before you notice problems.
• A detached retina can cause permanent vision loss if not treated quickly.
• Macular problems can make reading and driving harder over time.
• Regular checks help catch problems early, when treatment often works better.

Long-term outlook

Fundoscopy is a safe, quick test. Most people can return to normal activities soon after, although vision may be blurry for a few hours if drops are used. If a problem is found, early treatment and regular follow-up give the best chance of protecting your sight.

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