What would cause both your eyes to have large optical nerves The ophthalmologist says no evidence of glaucoma?

Possible causes of large optical nerves without evidence of glaucoma:

1. Normal variation: Some people naturally have larger optic nerves than others. This is not always a cause for concern and may not require treatment.

2. Pseudopapilledema: This is a condition that can mimic the appearance of papilledema (swollen optic nerve), but it is not caused by increased intracranial pressure. Pseudopapilledema can be caused by various factors, including optic nerve drusen (small deposits of hyaline material on the optic nerve head), tilted optic discs, and other anatomical variations.

3. Optic nerve head drusen: These are small, yellowish deposits of material that can occur on the optic nerve head. They are usually benign and do not affect vision. However, in some cases, optic nerve head drusen can be associated with glaucoma.

4. Optic nerve colobomas: These are gaps or notches in the optic nerve head. They can be present from birth (congenital) or acquired later in life. Optic nerve colobomas can be associated with other eye conditions, such as microphthalmia (small eye) and retinal detachment.

5. Optic nerve pit: This is a small depression in the optic nerve head. It is usually a harmless variation of normal anatomy, but in some cases, it can be associated with glaucoma.

6. Meningiomas: These are benign tumors that can occur on the meninges, which are the membranes that cover the brain and spinal cord. Meningiomas can sometimes press on the optic nerve, causing it to enlarge.

It's important to undergo regular eye exams to monitor the health of your optic nerves and rule out any underlying medical conditions.