Is hyaline degeneration of the cornea a precursor of Salzmann's corneal degeneration?

Primary calcareous degeneration of the cornea

Primary calcareous degeneration is a rare corneal disease. In the past 50 years, only four cases have been described. We present the case of a 26-year-old male patient with progressive calcium deposition in both eyes with negative laboratory parameters. For the first time, anterior segment optic coherence tomography was used to investigate and establish the proper treatment.

A Case of Blue Degeneration of the Cornea.

Spheroidal degeneration of cornea and conjunctiva.

A study of almost 1000 outpatients at a London eye hospital showed the presence of asymptomatic yellowish, spheroidal deposits in the peripheral cornea or conjunctiva, or both, in about 6 per cent, with a preponderance of males and older subjects among those affected. This prevalence is less than is observed in people in countries exposed to higher levels of sunlight. Histological study of the ...

Subacute combined degeneration : report of two cases

Subacute combined degeneration ( SCD) due to vitamin B12 deficiency is common in North of Europe but sometimes it is seen in Iran. It can develop before the symptoms of anemia is obvious, with myelin injury and then axon and even neuron destruction in spinal cord, brain, optic and peripheral nerves. In this study two cases are reported; in the first patient, this disease in manifested by vitami...

Pathology of posterior polymorphous degeneration of the cornea.

POSTERIOR polymorphous degeneration of the cornea is an uncommon, non-progressive, hereditary condition which is usually bilateral; in the majority of cases there is only minimal visual impairment (Duke-Elder and Leigh, 1965). The condition was first described by Koeppe (1916) as "keratitis bullosa interna", on account of the congenital pits on the posterior corneal surface. Koeppe (1920) repor...