Ultrasonography of haemangioma of the optic disc.
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to F Goes.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
A case of double optic pit is presented with minimal macular involvement but with an extensive wedge-shaped area of choroidal dystrophy in the nasal fundus. This wedge-shaped area of dystrophy is ophthalmoscopically and fluoroangiographically similar to the lesions of choroidal infarction. As however, it is situated near the nasal pit it might be the result of an unnoticed serous detachement related to the presence of the pit.
Explore the source record for details and available documents.
The ultrasonographic examination of pilocarpine 2%- and Ocusert P 20-treated eyes clearly demonstrated that the side effects, such as accommodative myopia and changes of the anterior chamber depth and of the lens thickness, were less pronounced in the Ocusert-treated group.
The results of the ultrasonographic measurements of the ocular components in 100 emmetropic eyes of nearly the same age, are presented and the possible relations between the various ocular parameters are discussed. A definite correlation was found (1) between the eye length and the curvature radius of the anterior corneal surface; (2) between the eye length and the anterior chamber depth, and (3) between the eye length and the vitreous length. No correlation could be demonstrated between the lens thickness and the eye length. This fact shows that in the wide range of axial eye lengths in emmetropic eyes, the emmetropization effect of the lens can only be provided by a change in the curvature radius of the lens surfaces. The mean eye length of 100 emmetropic eyes was 23.37 mm.
The effect of topical instillations of carbachol 3%, pilocarpine 2%, aceclidine 2%, aceclidine 2%-adrenaline 1%, and of the Ocusert delivery system was determined and compared in 151 eyes. The depth of the anterior chamber, the thickness and the position of the lens, the length of the vitreous and the refraction were studied. Aceclidine has negligible side effects on the ocular components (maximal change of the anterior chamber 0.20 mm; maximal change of the lens thickness 0.14 mm; maximal myopisation: -1.5 delta. Carbachol has the strongest side effects (maximal change of the anterior chamber 0.80 mm; maximal change of the lens thickness 0.80 mm; maximal myopisation -11.50 delta). Carbachol and pilocarpine may cause an important forward displacement of the lens with the risk of an angle-closure glaucoma in an eye with shallow anterior chamber.
With the help of ultrasonography, 360 cases of opaque anterior segment of the eye have been examined. In these, 99 cases (27%) of retinal detachment have been found. Also in 200 cases of opaque media of the posterior segment, 61 cases (30%) of retinal detachment were present.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.