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One. The Orbit.- 1. Ultrasonically-guided biopsy in orbital tumours.- 2. Echodriven fine needle aspiration biopsy in orbital tumor diagnosis.- 3. Echography assisted fine needle aspiration biopsy for diagnosing orbital pseudotumor and lymphoma.- 4. Ultrasound diagnosis of orbital histiocytofibromas.- 5. Orbitary myxoma: ultrasonographic diagnosis.- 6. Pre-operative and post-operative echographic results on patients undergoing optic nerve sheath decompression.- 7. Evaluation of the subarachnoidal space-comparisons between ultrasound and high resolution NMR-techniques.- 8. Lesions of the lacrimal fossa: a retrospective echographic study.- 9. Ultrasound diagnosis of orbital schwannomas.- Two. Biometry.- 10. Automatic measurement technique of the axial length using a new type of B-mode ultrasonography.- 11. Transducer performance parameters and their influence on biometric results.- 12. Clinical usefulness of linking biometry systems to personal computers.- 13. Continuous biometry of the chrystalline lens during accommodation.- 14. Biometric investigation of the effect of gravity on the chrystalline lens during accommodation.- 15. In vivo determination of the speed of ultrasound in cataracted lenses.- 16. Biometry and characterization of the lens.- 17. Formulas and results of intraocular lens implantation.- 18. Axial length measurements and IOL power calculations in microphthalmic eyes.- 19. Ultrasound diagnosis of unilateral axial myopia.- 20. Biometry of retina choroid layer.- 21. Eye size of the premature infant around presumed term.- 22. Choroidal nevi: diagnosis with standardized echography.- 23. Echometry in congenital glaucoma: long-term results after 10 to 17 years of surgery.- 24. Long-term biooculometry of developmental glaucoma.- 25. Relation between axiallength and refraction in eyes with congenital glaucoma.- 26. Biometric study of eyes with angle closure glaucoma.- Three. Vitreoretinal Diseases.- 27. Correlation between echography, vitreous surgery findings and follow-up.- 28. Power spectrum analysis of ultrasonic radio-frequency signals in vitreous diseases.- 29. Vitreous membranes: update echographical diagnosis.- 30. Reliability of standardized ultrasound in pre-operative diagnosis for vitreous surgery in diabetic patients.- 31. Ultrasound imaging in retinopathy of prematurity: retinal detachment in ROP stage 5 eyes and eye as prognostic indicator.- 32. Gas retinal detachment treatment and echography.- 33. Echographically driven extraction of foreign bodies.- 34. A case with a macular granuloma seropositive for Toxocara canis examined with standardized echography.- Four. Intraocular Tumours.- 35. Ultrasonography in intraocular tumours.- 36. Morphological parameters of intraocular tumours taking part in echographical tracings.- 37. Tissue characterization by ultrasound.- 38. Retinoblastoma conservative treatment: ultrasonographic follow-up.- 39. Ultrasonographic findings in selected cases of masquerading syndrome.- 40. Choroidal melanomas - correlations between A- and B-scan ultrasonography, nuclear magnetic resonance imaging and histopathology.- 41. Doppler ultrasonography in the follow-up of malignant melanoma of the choroid.- 42. Possibilities and limitations of ultrasonographical localization of ruthenium-106-radioactive plaques during treatment.- 43. Tumour volume calculations by ultrasonographical data in the evaluation of regression patterns in ruthenium-treated melanomas.- 44. Echographic patterns simulating extrascleral extension of malignant melanoma following plaque removal.- 45. Intraoperative use ofultrasound to document proper plaque placement in treating choroidal melanoma.- 46. Acoustospectography and histology of intraocular Greene's melanoma.- Five. Other Ocular Pathology.- 47. A-mode combined with B-mode ultrasonic equipment (Ophthascan S) in ocular and orbital diagnosis.- 48. Echo-ophthalmography in children.- 49. Radio frequency echographical study of pseudophakodonesis.- 50. Uveal effusion and nanophthalmos.- 51. 'Monstrous' deformations (myopic staphyloma) detected by ultrasound.- 52. Echographic findings in malignant glaucoma.- 53. Ultrasound findings in brawny scleritis.- 54. Echographic findings in lymphoid hyperplasia of the choroid.- 55. Diffuse lymphoid infiltration Of the uvea and periocular tissues.- Six. Physics and Techniques.- 56. In vivo determination of sound velocity in eye media.- 57. Two and three dimensional image processings applied to ophthalmic region.- 58. Three dimensional scan using a single transducer and image construction.- 59. Three dimensional display of ocular region using an array transducer.- 60. The development and clinical application of the digital quantitative color scan- converter connected with the ophthalmic contact ultrasonographic apparatus.- 61. Analysis of fundus blood dynamics by the ultrasonic Doppler method in blocking therapy for the stellar ganglions of the cervical sympathetic nerve.- 62. Computerized analysis of echo signals: multicentric experience.- 63. RGB output: our experience.- Authors index.