Address
Clínica Medytec Calle 54 No. 364-L x 33-A y 35 Col. Centro · Mérida, Yucatán
Board-certified ophthalmologist · Mérida, Yucatán
High-specialty eye care in Mérida.
Cataract, retina, LASIK and glaucoma surgery, plus advanced ocular diagnostics. In-person consultations at Clínica Medytec.
- Mexican Council of Ophthalmology #4823
- Licenses UADY 11480728 · UNAM 13713433
- Training at Hospital Nuestra Señora de la Luz
Training and certifications.
- Autonomous University of YucatánMedical DoctorLicense 11480728
- National Autonomous University of MexicoOphthalmology and high-specialty trainingSpecialty license 13713433
- Hospital Nuestra Señora de la LuzOphthalmology and high-specialty training
- Mexican Council of OphthalmologyBoard certifiedBoard number 4823
- Mexican Center of Ophthalmic UltrasoundActive member
- Mexican Center of Cataract SurgeonsActive member
- College of Ophthalmologists of the State of YucatánActive member
Services
Procedures and surgeries I perform most frequently.
High-specialty care in eye surgery and diagnosis.
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Cataract surgery
Replaces the clouded natural lens with a monofocal or advanced intraocular lens (toric, trifocal or extended depth of focus), aiming to recover clear, sharp vision.
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Retina surgery
Surgical treatment for retinal detachment, bleeding and complications from diabetes or other vascular conditions.
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LASIK · refractive surgery
Laser correction of myopia, astigmatism and hyperopia that may reduce dependence on glasses and contact lenses in eligible candidates.
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Glaucoma surgery
Surgical treatment to lower intraocular pressure and help protect the optic nerve in people with glaucoma.
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Ophthalmic ultrasound
High-resolution ultrasound to examine the internal structures of the eye when other techniques cannot visualize them.
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Macular surgery
Surgical procedures to improve central vision affected by epiretinal membranes, macular holes and other lesions.
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Eyelid surgery
Surgery to correct drooping eyelids (ptosis) and dermatochalasis, aiming to improve visual field and the appearance of the periocular area.
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Pterygium surgery
Surgical removal of pterygium, an abnormal growth on the ocular surface that can cause irritation or affect vision.
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Chalazion surgery
Outpatient removal of a chalazion, an eyelid cyst that does not respond to medical treatment. Short procedure with fast recovery.
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Lacrimal duct surgery
Treatment of tear duct obstructions that cause persistent tearing, restoring proper drainage and ocular comfort.
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Diabetic retinopathy
Laser, intravitreal injections or surgery to treat retinal damage caused by diabetes.
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Inflammatory eye diseases
Diagnosis and treatment of inflammatory eye diseases such as uveitis, with a comprehensive approach and clinical follow-up.
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About the doctor
Training, experience and clinical commitment.
Dr. Ramón Losa Castillo is an ophthalmic surgeon with high specialty in anterior segment microsurgery and in ocular and orbital imaging. He trained at Hospital Nuestra Señora de la Luz, one of the most respected ophthalmology centers in Mexico and Latin America.
He combines leading-edge technology with a precise clinical approach to diagnose and treat eye diseases. He is board certified by the Mexican Council of Ophthalmology and an active member of the Mexican Center of Cataract Surgeons and the Mexican Center of Ophthalmic Ultrasound.
Equipment and office at Clínica Medytec.
Ophthalmology office equipped with leading-edge diagnostic technology for comprehensive evaluation of eye conditions, specialized studies and clinical follow-up.
- Slit lamp for detailed eye examination
- Indirect ophthalmoscopy to assess retina, macula and vitreous
- Photo and video visualization and documentation system
- Autorefractometer
- iCare® ocular tonometry · airless intraocular pressure measurement
- High-resolution ophthalmic ultrasound
- Optical biometer for intraocular lens calculation
- OCT · Optical coherence tomography
- Corneal topography
- Computerized visual field testing
Consultations, studies and ophthalmologic evaluations are performed at Clínica Medytec, located in downtown Mérida. Surgical procedures take place in certified operating rooms in the city, with specialized equipment and hospital-grade safety standards.
Most frequently treated eye conditions.
Cataracts
Loss of lens transparency that causes blurred vision, glare and progressive decline in visual quality. Diagnosis, follow-up and surgical treatment with intraocular lens are provided.
Diabetic retinopathy and retinal diseases
Diagnosis and treatment of diseases affecting the retina and vitreous, including diabetic retinopathy, retinal detachment, epiretinal membrane, macular hole, age-related macular degeneration, vitreous hemorrhage and posterior vitreous detachment. Management may include laser, intravitreal injections and vitreoretinal surgery.
Refractive errors
Evaluation and correction of myopia, hyperopia, astigmatism and presbyopia through glasses, contact lenses or refractive surgery, tailored to each person.
Conjunctivitis and ocular surface diseases
Diagnosis and treatment of viral, bacterial and allergic conjunctivitis, as well as dry eye, blepharitis, pinguecula, pterygium and other ocular surface and conjunctival conditions.
Cornea
Care for corneal diseases including keratoconus, ulcers, infections, scars and corneal opacities, plus specialized evaluation of the ocular surface.
Glaucoma
Diagnosis, follow-up and treatment of glaucoma and elevated intraocular pressure through specialized studies, medical treatment, laser or surgery when indicated.
Inflammatory eye diseases
Diagnosis and management of uveitis, scleritis and other ocular inflammatory processes that may require local or systemic treatment and specialized follow-up.
Eyelids and lacrimal ducts
Assessment and treatment of chalazion, eyelid ptosis, dermatochalasis, lacrimal duct obstruction and other functional and aesthetic conditions of the eyelids and tear drainage.
Ophthalmic emergencies
Assessment of sudden vision decrease, painful red eye, flashes, floaters, ocular trauma and acute eye infections.
Values
What defines the doctor's medical practice.
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Medical excellence
Care is backed by high-level training, subspecialties and active participation in national and international conferences.
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Leading-edge technology
Modern equipment and techniques that enable precise and minimally invasive procedures.
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Ethical commitment
Clinical decisions are made based on scientific evidence, professional honesty and medical responsibility.
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Human care
You are accompanied with closeness, respect and empathy, building trust throughout the medical process.
What people who already received care share.
5.0 34 verified reviews · Doctoralia-
Excellent care from the doctor. Honest and resolute.
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Professional care, an excellent and humane physician. His equipment is cutting-edge.
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Excellent care and concise explanations. He makes you feel safe and comfortable. Happy to return.
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Good doctor, very patient, with clear and detailed explanations.
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Very thorough in his examination; detailed and objective explanation of the condition.
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Excellent treatment from Dr. Losa. He explained everything in detail to me and my wife, and performed an excellent cataract surgery.
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Very thorough medical examination, excellent treatment and very complete explanation of the condition. Thank you!
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Very good attention from the doctor, I recommend him. He will be my doctor from now on.
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Excellent care from the very first moment. Dr. Losa was very professional, attentive and clear in his explanations. He took the time to answer all my questions. Highly recommended!
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Excellent treatment and clear explanation of the procedure.
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Very professional, listens to the patient and explains clearly. Recommended.
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Attentive and thorough during the consultation. He patiently answered all my questions.
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Warm treatment and clear diagnosis. His experience and care for the patient are evident.
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Excellent ophthalmologist. Detailed, patient and professional. I highly recommend him.
Published testimonials reflect individual experiences shared with consent. Results may vary depending on each patient’s particular conditions.
Clínica Medytec, downtown Mérida.
FAQ
Useful information before your visit.
How do I schedule a first appointment?
You can schedule via WhatsApp at +52 999 970 5019 or by calling the office directly. We confirm availability at the time that works best for you.
What should I bring to my first visit?
We suggest bringing any previous eye studies (if available), a list of your current medications, your usual glasses and an official ID.
Do you handle eye emergencies?
Yes. For ophthalmic emergencies (sudden vision loss, severe eye pain, flashes, sudden appearance of spots or shadows, eye trauma, severe redness, or significant decrease in vision), please call the office directly to schedule a priority evaluation. If the emergency is severe or outside office hours, go to the nearest hospital emergency department.
Do you work with insurance?
Yes. We work with all insurance providers.
Where are surgeries performed?
In certified operating rooms in the city, with specialized equipment and hospital-grade safety standards. We confirm the specific facility when scheduling the procedure.
Contact
Book your appointment or get in touch.
Book your appointment on WhatsApp, or fill in the form and we will contact you within one business day.