Keratoconus · Private consultation in Madrid

Keratoconus and Corneal Cross-Linking (CXL) in Madrid

Assessment of corneal shape, thickness and change over time to decide whether monitoring is enough or cross-linking or another option should be considered.

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The decision does not rely on one image: it combines repeatable tests and the circumstances of each eye.

  1. 1
    DetectDefine corneal shape and thickness.
  2. 2
    CompareLook for change between reviews.
  3. 3
    DecideMonitor, correct vision or treat.

What changes in the cornea

Keratoconus thins and distorts the cornea. It may cause irregular astigmatism, blurred vision, halos or frequent prescription changes.

Regular corneaRegular curvature · defined focusThe curvature directs light towards a more defined focus.
KeratoconusIrregular curvature · scattered lightCorneal distortion scatters light and reduces visual quality.

When assessment may be useful

  • Frequent prescription changes
  • Ghosting, halos or glare
  • Worse night vision
  • Family history or habitual eye rubbing

Avoid rubbing your eyes. If itching or allergy is present, discuss how to control it.

Corneal assessment

How it is diagnosed and monitored

Each test describes a different feature and they are interpreted together.

  1. 01

    Topography

    Curvature of the corneal surface.

  2. 02

    Tomography

    Front, back and elevation maps.

  3. 03

    Pachymetry

    Thickness and distribution of thinning.

  4. 04

    Comparison

    Real change between reliable studies.

The key question: is it progressing?

No demonstrated progression

Individual follow-up and visual correction with glasses or contact lenses when required.

Progression or relevant risk

Cross-linking may be considered according to age, thickness, corneal maps and the rest of the examination.

Options by goal

Treatments do not all do the same thing

Choice depends on whether the aim is to improve vision, reduce progression risk or regularise the cornea.

01

Correct vision

Glasses or contact lenses adapted to corneal irregularity.

They do not alter progression by themselves.

02

Reduce progression

CXL uses riboflavin and controlled UVA light to strengthen the cornea.

It is considered particularly when progression or sufficient risk is present.

03

Regularise the cornea

Intrastromal segments may alter corneal shape in selected cases.

They do not cure keratoconus and visual effect varies.

Cross-linking in three ideas

  1. 1Riboflavin
  2. 2Controlled UVA light
  3. 3Corneal follow-up

Cross-linking and ring segments have different goals. Combining them is neither necessary nor appropriate in every case.

Interactive educational resource

Keratoconus in 3D

The corneal layers, the cone, and how cross-linking and intrastromal segments work, on a three-dimensional model.

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Corneal imaging research

Analysis of elevation maps to better understand keratoconus morphology.

More information

The patient library retains the detailed explanation, care advice, frequently asked questions and sources.

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Editorial transparency

Authorship, medical review and sources

Author and medical reviewer
Dr. Francisco Javier Abellán Martínez
Ophthalmologist · Medical registration no. 282880215
The same specialist currently authors and medically reviews the content; this is not presented as an independent external review.
Last medically reviewed
Sources consulted (2)

General educational content. It does not replace an individual assessment, diagnosis or personalised instructions from your healthcare team.

How these guides are written and reviewed
Medically reviewed content

Keratoconus assessment in Madrid

The first decision is to establish whether progression is present and what any treatment should aim to achieve.

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