Dr. Carlos Cury Jr.Ophthalmic Surgeon

Evaluation and management of corneal disease

The cornea accounts for most of the eye's refractive power. Changes in its transparency or curvature directly affect visual quality, even with an intact retina.

Macro photograph of a human eye with a transparent cornea
Illustrative image for educational purposes. It does not depict an identifiable patient.

Clinical explanation

Keratoconus is a progressive ectasia characterized by thinning and irregular steepening. Early diagnosis relies on corneal tomography and serial follow-up.

Corneal collagen crosslinking is the procedure described for stabilizing documented progression, without a primarily refractive purpose.

In advanced opacities, lamellar or penetrating transplantation techniques are considered according to the affected layer, preserving healthy tissue whenever possible.

Clinical timeline

Stages of care

  1. 01

    Surface examination

    Biomicroscopy, tear film assessment and photographic documentation of the anterior segment.

  2. 02

    Corneal imaging

    Topography, elevation-based tomography, pachymetry and specular microscopy as suspected.

  3. 03

    Treatment definition

    Clinical monitoring, stabilization or surgical indication, according to documented progression.

  4. 04

    Visual rehabilitation

    Optical fitting and long-term follow-up of corneal transparency and regularity.

Diagnostic imaging

Imaging documentation

  • Anterior segment image with detail of the cornea
    Corneal imaging

    Assessment of the anterior segment by topography, tomography and specular microscopy, as clinically indicated.

  • Color fundus photograph showing the retina, macula and optic nerve
    Fundus photography

    Color documentation of the ocular fundus, used to record the state of the retina and compare its evolution throughout follow-up.

Discussion

Comparison of serial examinations is the accepted method for characterizing progression, avoiding interventions based on a single measurement.

In transplants, prolonged monitoring of the endothelium and the immune response is part of standard care.

Expected outcome

The aim is to preserve corneal transparency and regularity and, when indicated, to stabilize progression. Visual recovery depends on the affected layer and the stage at the time of diagnosis.

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