A red eye, a changed drop schedule, or a familiar patch of dryness may be reasonable reasons to start with a screen. A dark curtain or sudden blur is different.
John F. Doane, M.D., a cataract and refractive surgeon at Discover Vision Centers, says that patients searching for an ophthalmologist in Raymore may still hesitate whether their symptom can safely begin with telehealth, or does it require direct examination?
Teleophthalmology can take several forms. A patient may speak with a clinician by phone or video, or images and test results may be collected locally and reviewed elsewhere. These models can improve access, clarify urgency, and reduce unnecessary travel. They do not make every eye complaint suitable for video-only assessment. Much of ophthalmology depends on measurements and magnified views that an ordinary camera cannot provide [1,2].
When irritation, medication questions, and stable symptoms may be discussed remotely
Telehealth is often most useful when the main task is gathering information, reviewing an established plan, or deciding whether an examination is needed. A clinician can ask when symptoms began, whether one or both eyes are involved, what makes the problem better or worse, and whether vision has changed. Video may show eyelid swelling, obvious redness, discharge, facial asymmetry, or a noticeable problem with eye movement.
That may be enough for an initial conversation about mild irritation, a recurring dry-eye complaint, eyelid symptoms, medication tolerance, or a stable condition already evaluated in person. It may also be useful for reviewing test results, discussing whether a prescribed drop is being used correctly, or checking progress after a clinician has established the diagnosis.
In a pandemic-era retrospective study at one academic eye center, video visits were used for acute triage and stable follow-up. Medication prescribing and reassurance were common outcomes. Some patients in the study were directed to urgent in-person care [1].
The history may uncover reasons not to rely on the picture on screen. Contact lens wear, significant light sensitivity, eye trauma, chemical exposure, recent surgery or injection, worsening pain, and reduced vision can change the level of concern. A red eye that looks modest on a webcam may still involve the cornea or deeper structures.
Lighting, focus, and video quality can obscure subtle findings at the front of the eye. A standard video visit also cannot reproduce slit-lamp examination or other controlled clinical testing [2].
Why sudden vision changes require a different response
The timing of a symptom is often more important than how dramatic it appears on camera. Gradual blur that has been stable for months follows a different pathway from vision that becomes dim, distorted, doubled, or partly absent over minutes or hours.
Sudden loss of vision is a red flag in teleophthalmology safety guidance because delayed examination can mean delayed treatment [2]. Severe eye pain with reduced vision or marked light sensitivity warrants prompt assessment. Trauma, chemical exposure, nausea or vomiting, and restricted eye movement can also increase the urgency [3].
A video call may still help a clinic direct the patient to the right setting, but it should not create an extra waiting step. Depending on the symptoms and local availability, the appropriate destination may be an eye clinic offering urgent examinations or an emergency department.
A routine webcam cannot measure intraocular pressure, stain the cornea with fluorescein, magnify the front of the eye through a slit lamp, or examine the retina through a dilated pupil. Those findings can be necessary when clinicians are considering corneal infection, acute pressure elevation, inflammation inside the eye, retinal disease, or optic nerve injury.
A visual disturbance that disappears can still require urgent attention. Sudden vision change accompanied by facial drooping, weakness, speech difficulty, or loss of balance may indicate a stroke or transient ischemic attack. Call 911 immediately, even if the symptoms disappear [4].
Flashes, floaters, shadows, and other retinal warning signs
Floaters are small moving shapes that may look like threads, spots, cobwebs, or insects. Many people notice them as the vitreous, the gel filling the eye, changes with age. A few longstanding floaters that have not changed are different from a sudden shower of new ones.
New flashes of light, a sudden increase in floaters, or a dark curtain or shadow entering the visual field can signal a retinal tear or detachment. The National Eye Institute advises people with these symptoms to seek an eye doctor or emergency department right away because retinal detachment can threaten permanent vision [5].
The symptom pattern can establish urgency, but diagnosis generally requires a dilated retinal examination. Additional imaging may be used depending on what the examiner finds.
Retinal telemedicine works differently from an ordinary video visit. In established programs, trained staff capture fundus photographs, optical coherence tomography scans, or other standardized images and send them to a clinician for interpretation. Teleophthalmology has an established role in retinal screening and referral pathways, especially when the images are sufficiently clear and the program has rules for ungradable or abnormal results [6].
A phone photograph of the outside of the eye is not retinal imaging. Nor does a normal-looking eye on video exclude a problem at the back of the eye. When the symptom suggests retinal involvement, the remote consultation should help coordinate a timely examination rather than provide reassurance based on appearance.
What patients should prepare before a virtual appointment
A useful virtual visit begins before the camera turns on. Patients should be ready to describe the symptom in concrete terms rather than relying on “my vision feels off.”
Write down when the problem started and whether it was sudden or gradual. Note which eye is affected, whether the symptom is constant, and whether covering one eye changes it. Record pain, light sensitivity, redness, discharge, flashes, floaters, missing areas of vision, double vision, headache, nausea, and recent injury.
The clinician will also need context. Have a current medication list nearby, including eye drops and over-the-counter products. Mention contact lens use, recent eye surgery or injections, diabetes, high blood pressure, autoimmune disease, migraine, and previous retinal or glaucoma problems. If the concern involves a medication, have the bottle available so the name, concentration, and instructions can be checked.
Good lighting helps, as does a stable internet connection and a device that can be moved close enough to show the eyelids and eye surface. Remove glasses when asked, but keep them available for vision testing. A clinic may ask for still photographs taken under specific lighting conditions, but patients should follow the clinician’s instructions rather than relying on photographs as a substitute for examination.
Previous examination reports, imaging, and prescriptions can help the clinician understand what has changed. Patients should also know the location of the nearest eye clinic or emergency department.
They should be ready to confirm where they are physically located during the visit. If urgent care is recommended, the clinician needs to direct them based on that location, not the address stored in an old medical record.
A virtual appointment is most effective when it produces a clear next step: continue the current plan, make a routine in-person appointment, obtain imaging, or seek urgent examination. The Raymore office of Discover Vision Centers lists routine and medical eye examinations, contact-lens services, optical care, and diabetic eye care. Across the broader Missouri and Kansas practice, the organization also uses optical coherence tomography and ultra-widefield retinal imaging and provides retina services [7].
For stable questions, telehealth may be a practical starting point. Sudden visual changes and retinal warning signs require direct examination without delay.
References
[1] Kalra, G., Williams, A. M., Commiskey, P. W., Bowers, E. M. R., Schempf, T., Sahel, J. A., Waxman, E. L., & Fu, R. (2020). Incorporating video visits into ophthalmology practice: A retrospective analysis and patient survey to assess initial experiences and patient acceptability at an academic eye center. Ophthalmology and Therapy, 9(3), 549–562.
[2] Gillam, M., Li, J.-P. O., Kilduff, C. L. S., Ramessur, R., Thomas, A. A. P., Logeswaran, A., Hussain, B., Thomas, P. B. M., & Hay, G. (2021). Teleophthalmology consultations – How do we keep our patients safe? Eye, 35, 1043–1044.
[3] Yedlinsky, N. T., Coy, A. M., & Embers, D. (2026). Evaluation of the painful eye. American Family Physician, 114(1), 65–71.
[4] American Stroke Association. (n.d.). Stroke, TIA and warning signs.
[5] National Eye Institute. (n.d.). Retinal detachment.
[6] Than, J., Sim, P. Y., Muttuvelu, D., Ferraz, D., Koh, V., Kang, S., & Huemer, J. (2023). Teleophthalmology and retina: A review of current tools, pathways and services. International Journal of Retina and Vitreous, 9, 76.
[7] Discover Vision Centers. (n.d.). Facts about Discover Vision Centers.
