NV Eye Surgery — Optic Nerve Evaluation
The Cable Between
Eye and Brain. When It Fails.
The optic nerve carries light converted into electrical signal from the retina to the brain. Hundreds of different conditions can damage it, and some are genuine emergencies.
- Over 50,000 optic nerves examined, tested, and photographed
- Equipment on site for visual field, OCT, and nerve imaging
- Arteritic AION is a neuro-ophthalmologic emergency
Is This Right for You?
Am I a Candidate for Optic Nerve Evaluation?
Optic nerve problems can start with sudden vision loss, double vision, or symptoms beyond the eye, and some can’t wait. If any of these sound like you, call us right away.
One presentation is a true emergency. Arteritic anterior ischemic optic neuropathy presents with headache, fatigue, weight loss, pain on chewing, and scalp tenderness, and carries serious risks both visually and systemically because major arteries throughout the body may be affected. Diagnosis uses elevated ESR, CRP, and IL6 lab values, confirmed by a biopsy of the superficial temporal artery. Emergent treatment with oral or intravenous steroids is started and usually maintained for over a year.
The Procedure
What Does the Optic Nerve Do?
The optic nerve works like a telephone cable connecting the eye and the brain. Light passes through the clear cornea and lens and focuses onto the retina, where living tissue converts that light energy into chemical and electrical signals. Those signals travel along the nerve to the brain, which interprets them as an image. Any disease that damages the optic nerve causes loss of vision, and in some cases complete blindness. Hundreds of conditions can do that damage, and they sort into a handful of basic categories that determine how urgently they need addressing.
Blood Flow Related
Ischemic optic neuropathy, where reduced blood flow to the nerve causes loss of central or peripheral vision, often with swelling of the nerve.
Inflammatory
Optic neuritis, an auto-immune inflammation of the nerve in one or both eyes causing loss of vision, red discrimination, and brightness, often linked to multiple sclerosis.
Infectious
Damage caused by infections including syphilis and tuberculosis.
Infiltrative
Cancer cells infiltrating the nerve or the surrounding structures.
Patient Reviews
Understanding the Difference
Ischemic, Inflammatory, or Pressure-Related?
Optic nerve swelling looks broadly similar from the outside while meaning completely different things underneath. Which category your presentation falls into determines whether treatment exists, whether it is urgent, and what the prognosis actually is.
Arteritic AION
Reduced blood flow with systemic arterial involvement
- Diagnosable through elevated ESR, CRP, and IL6 lab values
- Confirmed with a biopsy of the superficial temporal artery
- Emergent steroid treatment is available and effective
- Presents with headache, fatigue, weight loss, pain on chewing, and scalp tenderness
- A true neuro-ophthalmologic emergency with serious visual and systemic risk
- Steroid treatment is usually maintained for over one year
Emergency
Non-Arteritic AION
Painless vision loss, typically over age 50
- Usually affects only one eye, though both can become involved
- Risk factors are identifiable: high blood pressure, diabetes, a small optic nerve
- Presents as painless loss of vision in individuals over 50
- The prognosis for recovery is poor
- There is no treatment
- Controlling blood pressure and diabetes helps manage risk factors
Most Common
Optic Neuritis
Auto-immune inflammation of the optic nerve
- An identifiable inflammatory cause rather than a vascular one
- Can affect one or both eyes
- The nerve may or may not be visibly swollen
- Causes loss of central or peripheral vision, red discrimination, and brightness
- Usually associated with neurologic disease such as multiple sclerosis
Inflammatory
These categories are not equally treatable. Non-arteritic AION has no treatment and a poor prognosis for recovery, while arteritic AION demands emergency intervention. An accurate diagnosis matters, and so does speed. Some of these conditions are emergencies.
Step by Step
Your Optic Nerve Evaluation Journey
An optic nerve workup is diagnostic rather than procedural. The point is establishing what is damaging the nerve, and how fast.
1
History and Examination
- Symptom onset, progression, and whether one or both eyes
- Review of blood pressure, diabetes, and neurologic history
- Assessment of pupils, including whether anisocoria is physiologic
- Eye alignment and movement checked for nerve palsies
- Lid position and eye protrusion evaluated
2
Dilated Nerve Examination
- The pupil is enlarged with dilating drops for a full view
- The optic nerve is examined for swelling or pallor
- Nerve appearance compared between the two eyes
- Photographs taken to document the current appearance
- Asymmetry and vertical stretching of the cup noted
3
Specialized Testing
- Visual field testing maps central and peripheral vision
- OCT measures the nerve fiber layers without relying on your input
- Papilledema is diagnosed by dilated exam, visual field, and OCT
- Lab work when arteritic disease is suspected: ESR, CRP, IL6
- Temporal artery biopsy to confirm arteritic AION
4
Diagnosis and Direction
- Findings placed into ischemic, inflammatory, infectious, or infiltrative categories
- Emergent steroid treatment started if arteritic AION is suspected, with biopsy to confirm the diagnosis
- Referral coordinated when neurologic or systemic disease is implicated
- Repeat imaging scheduled to track change over time
- Realistic prognosis explained, including where no treatment exists
What to Expect
Expected Optic Nerve Evaluation Outcomes & Recovery
Some optic nerve conditions resolve on their own, some are emergencies, and some have no treatment at all. An honest evaluation tells you which one you have.
What Patients Can Expect in the First 30 Days
- Dilating drops can leave vision blurry for up to four hours, so arrange a ride home
- Visual field testing takes about five minutes per eye and needs your sustained attention
- OCT scanning is painless and does not depend on your input
- Nerve photographs establish a baseline for comparison at future visits
- Bring a list of current systemic medications, since several affect the pupils
- Report headache with weakness, numbness, or trouble walking or talking immediately
Informed Care
Safety & Risk Considerations
An optic nerve evaluation is diagnostic. The tests used are painless and non-invasive, with the exception of lab work and temporal artery biopsy where arteritic disease is suspected.
Safety Profile
- Visual field and OCT testing are painless and generally take less than five minutes
- OCT uses light rather than radiation to measure the nerve layers inside the eye
- Photographs document nerve appearance so change over years can be detected by comparison
- Over 50,000 optic nerves examined, tested, and photographed by Dr. DeBry
- Our clinic has the equipment on site to assess a patient for optic nerve disorders
Possible Side Effects
- Dilating drops are needed to examine the nerve fully and may blur vision for up to four hours afterward
- Visual field testing depends on your input, so fatigue or anxiety can affect the result and require a repeat
- Where arteritic AION is suspected, confirming the diagnosis requires a biopsy of the superficial temporal artery
- Steroid treatment for arteritic AION is usually maintained for over one year
- Mild papilledema can be difficult to detect, because normal optic nerves vary widely in appearance
How We Minimize Risk
Comparison Against a Baseline
Photographs and OCT scans recorded early give every future test a reference point. Early nerve damage is genuinely hard to read on a single visit, and change over time is the reliable signal.
Volume of Nerves Seen
Over 50,000 optic nerves examined and photographed across 12 years of practice. Normal nerves vary enormously in size and shape, so pattern recognition at that scale is what separates a variant from a finding.
Escalation When It Is Urgent
Arteritic AION is treated as the emergency it is, with lab work and biopsy pursued immediately rather than scheduled, and steroids started emergently.
Why NV EYE SURGERY
Why Choose Us for an Optic Nerve Evaluation
Reading an optic nerve accurately is a pattern recognition problem, and the size of the sample behind that pattern matters.
Over 50,000 Nerves Examined
Dr. DeBry has examined, tested, and photographed more than 50,000 optic nerves across 12 years of practice. Normal nerves vary enormously, and volume is what makes a real finding stand out.
Testing Equipment On Site
Our clinic has the equipment available to assess a patient for optic nerve disorders, including visual field testing, OCT, and nerve photography.
Complex Disease by Design
This practice focuses on surgery and complex medical eye conditions rather than routine exams, which is why the diagnostic workup here is thorough rather than abbreviated.
Find Us
Optic Nerve Evaluation in Henderson & Las Vegas
Optic nerve evaluations with full testing equipment at both Southern Nevada offices.
Coverage & Financing
Cost & Insurance
Evaluation for optic nerve disease is medical care and falls under your medical insurance rather than a vision plan.
Insurance Coverage
Office visits for eye problems are covered under medical insurance. Your plan determines your co-pay and deductible, and we collect co-pays at the time of service.
- Common plans accepted include Medicare, Blue Cross Blue Shield, Cigna, Aetna, Culinary, UMR, Teachers, United HealthCare, Sierra Health and Life, and TriCare
- Some plans require a referral from your primary care doctor to see a specialist
- We are not a provider on vision insurance plans and do not perform exams for glasses or contact lenses. We’re happy to refer you to an optometrist near you.
- Text a photo of your insurance card to (702) 935-5746 and our staff will confirm your options
Without Insurance
You can see one of our doctors even without medical insurance, or if we are not listed as a provider on your plan.
- Many plans have out-of-network benefits you can submit claims against for partial reimbursement
- Paying cash per visit is an option, and a few monitoring visits a year may cost only a few hundred dollars
- That is often less than switching insurance plans just to gain access
- VA community care may apply with a referral from the Las Vegas VA Eye Clinic
- We are unable to see patients with Senior Dimensions or Humana Gold Medicare Advantage plans, except in rare cases authorized by those plans.
Flexible financing available. We work with CareCredit to offer low- and no-interest payment plans for care not covered by insurance. Ask about your options at your visit. Results may vary. Individual results are not guaranteed. Financing subject to credit approval. See office for complete terms and conditions.
locationsCommon Questions
Frequently Asked Questions
Common questions about optic nerve symptoms and what they do and do not indicate.
My pupils are different sizes. Should I worry?
Often not. Around 20% of the population has unequal pupils of no neurological consequence, called physiologic anisocoria. Non-physiologic anisocoria can follow trauma, eye surgery, eye drops, or systemic medications, and occasionally signals something serious. Worth noting: the larger pupil is not always the problem pupil.
What causes double vision?
Misalignment of the eyes, from a problem with one or more eye muscles, producing two images of the same object. Closing one eye eliminates it. That is different from monocular double vision, which persists with one eye closed and is usually caused by a cataract or dry eye.
Is a headache a sign of optic nerve disease?
Usually not. Headache is generally not a sign of severe neurologic disease. If it is unremitting and progressive, and comes with weakness, numbness, or difficulty walking or talking, that combination could point to a stroke, tumor, or increased intracranial pressure and needs immediate attention.
What is papilledema?
Swelling of the optic nerves caused by increased pressure around the brain. It is diagnosed with a dilated eye examination, visual field testing, and OCT. Moderate to severe cases are readily detected. Mild papilledema is harder, because normal optic nerves vary widely in appearance.
What is pseudotumor cerebri?
Also called idiopathic intracranial hypertension, a problem with the brain maintaining normal intracranial pressure. It is seen mostly in females, which suggests a role for estrogen, though males are affected too, as are people taking dermatologic medications such as isotretinoin, retinoic acid, and tetracyclines. Treatment lowers cerebrospinal fluid pressure, usually with oral acetazolamide.
Will a nerve palsy get better?
Frequently. Sixth nerve palsy usually resolves without treatment in six to eight weeks. Third nerve palsy is generally self-limited and improves over time, though pupil involvement makes it more concerning and can herald a tumor or aneurysm.
Could a droopy eyelid or bulging eye mean something more serious?
Sometimes. A droopy lid that comes on suddenly or comes and goes can be a sign of a neurologic condition such as myasthenia gravis. A bulging or protruding eye can come from thyroid eye disease, which is related to autoimmune thyroid disease, or from more serious orbital disease. Thyroid eye disease often affects the eyes unevenly, with bulging, double vision, droopy lids, and dry eyes. Either symptom deserves an evaluation.
Ready When You Are
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Most patients see results within 24 hours. Consultations are available at all four locations, online scheduling takes less than two minutes.
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