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PURPOSE The biomechanical properties of the cornea have an important role in determining the shape of the cornea and visual acuity. Since the cornea is a nonhomogeneous tissue, it is thought that the elastic properties vary throughout the cornea. We aim to measure a map of corneal elasticity across the cornea. METHODS An acoustic radiation force elasticity microscope (ARFEM) was used to creat...

PURPOSE Assess the lamellar organisation of the peripheral and central stroma of the keratoconus (KC) and normal cornea. METHODS Five normal and three KC corneas were fixed in 2.5% glutaraldehyde and processed for electron microscopy. The ultrathin sections were observed under JEOL 1400 TEM, and digital images were taken with a bottom-mounted 11-megapixel Quamisa camera, using the iTEM softwa...

purpose: to characterize the histopathologic, electron microscopic and confocal scan features of ahram mineral water (amw)-induced keratopathy in cadaver corneas. methods: seven cadaver globes were examined, five of which were exposed to amw from the corneal side for different durations (30 seconds, 3, 15, 30, and 60 minutes) and the other two were considered as controls. after performing confo...

A tractor-driver aged 44 presented with a history of a "shadow" over the left vision for the previous 5 or 6 months. For the last 2 weeks there had been some pain round the left eye. His general health was good and his weight steady. Ophthalmic examination showed the visual acuity to be 6/5 in the right eye and 6/9 in the left. The right eye was normal. The left eye was not injected and the cor...