Visión Digna urges early glaucoma testing with OCT and visual fields

Visión Digna in Mexico City is promoting earlier glaucoma detection with OCT scans and visual field tests as the disease can quietly damage the optic nerve before patients notice vision loss. The effort highlights how structure-and-function testing can help spot disease sooner and reduce the risk of irreversible blindness.

Why it matters: - Glaucoma can damage the optic nerve and steal peripheral vision before a person notices clear changes in daily life. - Early detection matters because glaucoma-related damage is often irreversible. - Catching the disease sooner can help preserve functional vision and lower the risk of disability.

What happened: - Visión Digna, a private eye-health project in Mexico City, is promoting timely glaucoma screening. - The clinic is led by Dr. José Francisco Valdez López, an ophthalmologist and retina specialist focused on advanced eye diagnosis. - The promoted testing includes OCT of the optic nerve, OCT of ganglion cells and visual field exams. - The campaign is aimed at people who may feel they see well even while losing side vision.

The details: - Glaucoma is a group of diseases that damage the optic nerve, which carries visual information from the eye to the brain. - The disease is often linked to elevated intraocular pressure, but it can also appear with normal-appearing pressure. - Early glaucoma often causes no pain and no obvious symptoms. - A person may still read small print, use a phone or watch TV and still be losing peripheral vision. - OCT of the optic nerve measures the retinal nerve fiber layer, or RNFL, which is made up of ganglion-cell axons. - OCT can detect global or sectoral thinning, asymmetry between eyes and damage patterns that match optic-nerve and visual-field findings. - OCT of ganglion cells evaluates inner retinal layers in the macula, where many ganglion-cell bodies are located. - Ganglion-cell testing can reveal structural damage that may not be obvious on a basic eye exam. - Visual field testing measures peripheral vision and can detect missed areas of sensitivity loss. - Visión Digna also performs detailed interpretation of visual fields, including reliability, global indices, localized defects and correlation with OCT findings. - The clinic says glaucoma evaluation should correlate pressure, optic-nerve exam, OCT of the optic nerve, OCT of ganglion cells, visual fields, age, family history, myopia, corneal thickness and other clinical findings. - The promoted screening is aimed at people with suspected glaucoma, high eye pressure, family history, age over 40, high myopia, diabetes, hypertension, long-term steroid use, eye trauma, suspicious optic nerves or loss of side vision. - Visión Digna offers these diagnostic studies in Mexico City as part of ophthalmologic evaluation, physician referral or patient-initiated screening. - Each study is paired with detailed interpretation to explain findings, possible clinical relevance and whether follow-up, repeat testing, correlation or treatment may be needed. - If glaucoma is suspected or diagnosed, care may include eye drops, laser procedures, glaucoma surgery or close observation depending on risk and disease stage. - Ongoing follow-up is important because glaucoma is chronic and progression has to be tracked over time.

Between the lines: - The message is less about one test and more about combining structure and function to avoid false reassurance. - A normal-looking central vision check can miss early glaucoma because the disease often starts in the periphery. - A single abnormal OCT or visual field does not confirm glaucoma on its own, and a normal result does not fully rule out risk. - The clinic is positioning detailed interpretation as a core part of diagnosis, not just the scan itself.

What's next: - Patients with family history, high eye pressure, suspicious optic nerves or peripheral vision loss are being encouraged to get evaluated. - The likely next step for many patients is repeat testing or continued monitoring to see whether nerve thinning or visual-field loss progresses. - Visión Digna says the goal is earlier detection so treatment can begin before damage becomes advanced.

The bottom line: - Glaucoma can advance quietly even when reading and central vision seem normal, so OCT and visual field testing can be critical to finding damage early.