Pellucid marginal degeneration (PMD) is a progressive thinning of the cornea, similar to keratoconus. In most cases, PMD is hereditary and often affects both eyes to varying degrees.
In contrast to keratoconus, the first signs of PMD only appear between the ages of 30 and 50. A gradual visual impairment with a typical increase in astigmatism are the first symptoms; later, even with new glasses, no improvement in visual acuity can be achieved.
An ophthalmologist should be clarified at the latest when these symptoms occur.
As with keratoconus, the progression of PMD can also be stopped with minimally invasive treatment. The earlier PMD is identified and treated, the better the long-term success of treatment.
