What it is
The cornea is the window at the front of the eye, and its clarity and shape determine whether light comes in clean. Its diseases show up as blurred or distorted vision, halos, pain, a red eye or light sensitivity.
Some progress slowly, like keratoconus or dystrophies, and others are urgent, like infections. In almost all of them, timely treatment is what avoids reaching a transplant.
Techniques and procedures
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01
Keratoconus
The cornea thins and bulges into a cone, and the prescription and astigmatism change often. In early stages, corneal cross-linking can halt its progression.
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02
Infections and ulcers
Bacteria, fungi, viruses or amoebas can infect the cornea, especially in contact lens wearers. They are urgent: early treatment protects vision.
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03
Dystrophies and scars
Dystrophies are inherited and cloud the cornea little by little; scars remain after injuries or infections. Depending on their depth they are treated with medication, laser or a transplant.
Who treats it
When to get checked
- Your prescription, especially the astigmatism, changes from one year to the next.
- You see halos or double or distorted images with one eye.
- You have a red, painful, light-sensitive eye, especially if you wear contact lenses: this is urgent.
- Keratoconus runs in your family.
If any of these sound familiar, the sensible step is an assessment: that is where you find out what is going on and what to do about it.
General guidance. It does not replace an assessment by a specialist.
Related services
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Refractive surgery
Corrects nearsightedness, farsightedness and astigmatism by reshaping the cornea with a laser, to depend less on glasses.
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Corneal transplant
Replaces a damaged cornea, in full or only the affected layer, with donor tissue when it has lost its clarity or shape.
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Comprehensive eye exam
A complete assessment of your eyes: visual acuity, prescription, intraocular pressure and an examination of the front and the back of the eye.
Accreditations
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Mexican Board of Ophthalmology
All three doctors, board-certified in the specialty.
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COFEPRIS
Current operating notice with the federal health authority.
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Centro Médico ABC
All three doctors, members of its medical society.
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Instituto de Oftalmología
Fundación Conde de Valenciana IAP.
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Mexican Society of Ophthalmology
Active members, current in their subspecialty.
Contact
Where we are
Arrive 10 minutes before your appointment: the clinic is in Torre A, fifth floor, and the entrance and the elevator take a moment.
- Prolongación Vasco de Quiroga 4001
- Torre A, Piso 5, Consultorio 5
- Santa Fe, 05370
- Cuajimalpa, Ciudad de México
Write to us
Leave us your details and we will contact you the same day to coordinate your visit.
Notes
What is worth knowing about your eyes
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Am I a candidate for refractive surgery?
It is not for everyone, or at any point in life: first we check your prescription, your corneal shape and the ocular surface.
Dr. Alejandro Navas Pérez
Read note -
The cornea is the window of the eye
When it loses clarity or changes shape, vision blurs even with the right lenses: a prescription that will not settle deserves an exam.
Dr. Alejandro Navas Pérez
Read note -
Dry eye: why it burns and what helps
It is rarely a lack of water: usually the tear film evaporates too fast. That is why drops alone are not always enough.
Dr. Alejandro Navas Pérez
Read note -
Contact lenses: the care that actually matters
Most serious corneal problems in lens wearers come from three habits, and all three can be changed today.
Dr. Alejandro Navas Pérez
Read note
Frequently asked questions
What people ask us most before their first visit
Do I need a referral to book a visit?
No. You can book your consultation directly. If another doctor referred you, please bring their notes and any tests: they help us avoid repeating work that is already done.
How long does the first assessment take?
Between 30 and 60 minutes. It includes a full eye exam.
What should I bring to my appointment?
Your current glasses, a list of the medications you take and any previous eye tests or prescriptions. If you wear contact lenses, ask us how long before the visit you should take them out.
Will my pupils be dilated? Can I drive afterwards?
Often yes, especially for retina and glaucoma exams. The drops leave your vision blurry and light-sensitive for a couple of hours, so it is best to bring someone along or not drive back.
Where is the clinic?
In Santa Fe, inside an office tower: Prolongación Vasco de Quiroga 4001, Tower A, 5th floor, office 5. Allow a few minutes for the entrance and the elevator; the "Directions" button opens the route on the map.

