Retina Examination and OCT Scan in Una
The retina is the light-sensitive tissue at the back of the eye. Retinal conditions can affect central vision, side vision, colour perception and the ability to see fine details.
Vishal Eye Hospital provides retinal evaluation and OCT imaging to help identify structural changes, monitor existing eye conditions and guide further treatment or specialist referral when required.
What Is an OCT Scan?
Optical Coherence Tomography, commonly called OCT, is a non-invasive imaging test that uses light waves to create detailed cross-sectional images of the retina and optic nerve.
OCT allows the ophthalmologist to examine individual retinal layers and identify changes such as swelling, thinning, fluid accumulation or abnormal traction.
Symptoms That May Require a Retina Examination
- Blurred or reduced central vision
- Straight lines appearing bent, curved or distorted
- A dark, blurred or empty area in central vision
- Sudden appearance or increase of floaters
- Flashes of light in one or both eyes
- A shadow or curtain appearing across vision
- Sudden or unexplained loss of vision
- Difficulty recognising faces or reading small print
Sudden Retinal Symptoms Can Be an Emergency
A sudden increase in floaters, repeated flashes of light, a dark curtain or shadow over vision, or sudden visual loss requires urgent eye examination. Do not wait for a routine appointment.
Conditions That May Be Evaluated With Retina Examination and OCT
- Diabetic retinopathy
- Diabetic macular swelling
- Age-related macular changes
- Macular hole
- Macular pucker or epiretinal membrane
- Retinal vein-related conditions
- Retinal swelling or fluid accumulation
- High-myopia-related retinal changes
- Optic-nerve and glaucoma-related changes
- Unexplained reduction or distortion of central vision
Who May Need Regular Retinal Monitoring?
People With Diabetes
Diabetes can affect retinal blood vessels before noticeable visual symptoms appear.
Patients With High Myopia
High spectacle power may be associated with retinal thinning and other changes that require monitoring.
Patients With Previous Retinal Disease
Follow-up may be needed after retinal treatment, laser procedures or surgery.
Patients With New Visual Distortion
OCT can help assess the macula when straight lines appear bent or central vision becomes blurred.
What Happens During an OCT Scan?
The patient sits in front of the OCT machine and looks at a target while images are captured. The test is generally quick, painless and does not touch the eye.
Dilating eye drops may be required in some cases to obtain a complete retinal examination or clearer images. Temporary light sensitivity and blurred near vision can occur after dilation.
Why Previous OCT Reports Are Important
Comparing current OCT images with previous scans helps the ophthalmologist determine whether retinal or optic-nerve changes are stable, improving or progressing.
Patients who have undergone previous retinal testing should bring their old reports, prescriptions and treatment records to the appointment.
Frequently Asked Questions About Retina and OCT
Is an OCT scan painful?
No. OCT is generally a quick, painless and non-contact test. The patient looks into the machine while detailed retinal images are captured.
Does OCT use X-rays or radiation?
OCT uses light waves to create detailed images. It does not use X-rays or ionising radiation.
Will my pupils need to be dilated for OCT?
Dilation is not required for every OCT scan. It may be advised when the pupil is small, the image is unclear or a complete retinal examination is also required.
Can OCT alone diagnose every retinal condition?
No. OCT is an important imaging test, but its findings must be interpreted together with symptoms, vision testing, medical history and a complete eye examination.
Should people with diabetes have their retina examined?
Diabetes can affect retinal blood vessels before the patient notices vision changes. The timing of retinal examinations depends on the type and duration of diabetes, previous findings and medical advice.
Are floaters always dangerous?
Long-standing stable floaters are common, but a sudden increase in floaters—especially with flashes, a shadow or reduced vision—requires urgent retinal examination.
Why does the doctor compare new OCT scans with older scans?
Comparison helps identify small changes over time and allows the ophthalmologist to determine whether a condition is stable or progressing.
Can I drive after a dilated retina examination?
Dilating drops may temporarily blur near vision and increase light sensitivity. Patients should follow the doctor’s advice and arrange assistance when they are not comfortable driving afterward.
Have You Noticed Distorted or Reduced Vision?
Schedule a retina and OCT examination at Vishal Eye Hospital in Una for detailed assessment and appropriate medical guidance.
Sudden flashes, new floaters, a curtain-like shadow or sudden loss of vision may require emergency assessment. This content is not a diagnosis.