Demodex-Blepharitis und Kontaktlinsen: Eine unterschätzte Ursache für Unverträglichkeit?

Purpose. This case report describes the visual and cosmetic rehabilitation of a 63-year-old patient with a rigid prosthetic contact lens following penetrating globe injury, aniridia and traumatic aphakia. Material and Methods. Based on corneal topography a rigid prosthetic contact lens was fitted to achieve both visual and cosmetic rehabilitation of the injured right eye. The Falco irisTruefit colour wheel from Falco lenses AG was used to determine the iris tint of the custom-made lens. The final refractive power of the lens was established by using a variable aperture pinhole. Results. With the rigid prosthetic lens it was possible to achieve visual and cosmetic rehabilitation of the injured eye in accordance with the findings. Six weeks after the contact lens was fitted there was a significant improvement in visual acuity and excellent subjective and objective tolerance of the contact lens. The photophobia caused by the aniridia was significantly reduced. In addition, with the spectacle lens correction for the left eye, a positive stereopsis was achieved. Conclusion. The visual and cosmetic rehabilitation of eye injuries with aniridia and traumatic aphakia has always been one of the classic indications for prosthetic lenses. For complex corneal shapes, treatment with mini-scleral prosthetic contact lenses should also be considered. The use of a variable pinhole has proven to be helpful in determining the contact lens power of the lens in the presence of aniridia and aphakia.