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Biomedical subjects

S Harrer

Publications and source records attributed to S Harrer.

25 records · Page 2Linked to original sources
PubMed1982

[Limbal and perilimbal changes in wearers of HEMA lenses].

Incompatibility of HEMA contact lenses leads to changes in the conjunctiva and cornea which frequently appear in the region of the corneal limbus. From the limbus toward the sclera one can differentiate four stages according to the clinical picture: (1) enlargement of the pericorneal capillary network; (2) pronounced pericorneal injection right to the rim of the contact lens; (3) border-like edema in the area actually in contact with the lens; (4) additional haemorrhage in this area. From the limbus toward the cornea three typical changes occur: (1) peripheral edema of the cornea; (2) neovascularization of the cornea; (3) pannus formation.

Conjunctival Diseases↗
PubMed1982

[Corneal changes due to HEMA lenses].

The topic of this paper is the appearance of palisade-shaped, soft, gray opacities of the corneal epithelium in wearers of HEMA lenses. The opacity emanates from the limbus and is located under the upper eyelid. The paper also deals with the formation of folds in Bowman's membrane. They are approximately horizontal, are usually located within the lid-fissure and occur in combination with large-scale opacity of the corneal epithelium in the upper third of the cornea. The differential diagnosis of well-known corneal changes is also discussed.

Contact Lenses, Hydrophilic↗
PubMed1981

[Differential diagnosis of corneal changes in wearers of Hema lenses (author's transl)].

The authors report on a disease of the cornea resembling keratitis nummularis developed by patients wearing Hema lenses. The large disk-shaped subepithelial opacities are accompanied by pathologic changes in the endothelium of the peripheral parts of the cornea. Etiologically, it is believed that there is an immunologic process acting on components of the lenses and the solutions they are cleaned with and kept in. The differential diagnosis between Dimmer's nummular keratitis, epidemic keratoconjunctivitis and herpetic corneal diseases in discussed.

Contact Lenses, Hydrophilic↗