Understand your eye and vision symptoms
Plain-language guides to eye and vision conditions, written by our medical team and reviewed by board-certified ophthalmologists.
Start here: common symptoms
Most patients arrive trying to make sense of one symptom. Pick the one that brought you here.
Explore by topic
Comprehensive information organized by symptoms, conditions, tests, and treatments.
Symptoms
Understand what your visual symptoms may indicate
Conditions
Learn about neuro-ophthalmic disorders and diseases
Tests
What to expect from diagnostic procedures
Treatments
Explore treatment options and what to expect
Guides
Practical guides for navigating your care journey
Clinical reference
Material aimed at clinicians, students, and patients with a specific reference need.
Featured Resources
Frequently referenced patient education materials
Double Vision (Diplopia)
Seeing two images of a single object can be alarming. Learn what causes double vision, when it's serious, and what to expect at your appointment.
Read articleOptic Neuritis
Painful optic nerve inflammation that can dim vision, wash out color, and sometimes point to MS, NMO, MOGAD, infection, or another inflammatory cause.
Read articleVisual Field Test (Perimetry)
A test that maps your peripheral and central vision to detect blind spots and patterns of vision loss.
Read articleA Note From Our Clinical Team
These educational materials are developed by our medical writing team and medically reviewed by Dr. Hashemi or qualified ophthalmology clinicians to help you better understand your diagnosis and care plan. While this information is designed to support your healthcare journey, it is not a substitute for personalized medical advice from your physician.