Numerous drugs administered either generally or locally have shown a cata ractogenic action. From a pathogenic point of view a di,stinction must be made between drugs which modify the transparency of the lens due to accumulation (mer curic,'silver, gold salts, etc.) from those influencing its metabolism. Among the latter, Triparanol, antimitotic drugs, various phenothiazinic derivates, corticosteroids and certain miotics cause the most significatn dam age. It is necessary to indicate the most frequent reports which evidence a relationship between a prolonged oestroprogestinic therapy and…mehr
Numerous drugs administered either generally or locally have shown a cata ractogenic action. From a pathogenic point of view a di,stinction must be made between drugs which modify the transparency of the lens due to accumulation (mer curic,'silver, gold salts, etc.) from those influencing its metabolism. Among the latter, Triparanol, antimitotic drugs, various phenothiazinic derivates, corticosteroids and certain miotics cause the most significatn dam age. It is necessary to indicate the most frequent reports which evidence a relationship between a prolonged oestroprogestinic therapy and alterations of the lens transparency. The authors also indicate pathogenic mechanisms which probably cause iatrogenic cataracts. REFERENCES Apponi G., Rinaldi E. & De Simone S. Cataratta monolaterale dopo iniezione endo carotidea di 2-3-5 Trisetilenimmino 1-4 benzochinone (Trenimon Bayer). Ann. Ot tal. 90, 224, 1964. Baron J.B., Morel P., Rivollan Y. & Soulairac A.: Incidences ophtalmologiques du traitement prolonge par la chloropromazine associee ou non Ii des troubles cutanes. Agressiologie, 9, (2) 293, 1968. Bryk E.: Generalized argyrosis with involvement oflenses. Klin. Oczna 26,217,1956. Conel E.B. & Kelman C.D.: Ophthalmologic findings with oral contraceptives. Obstet. Gynec. 31,456, 1968. Conklin, Upton & Christenberry & MC.Donald: Citato da Duke-Elder. Radiat. Res. 19, 156,1963. Davidson S.I.: Reported adversa effects of oral contraceptives on the eye. Trans. Oph thai. Soc. U.K. 91,561,1971. De Long S.L.: Incidence and significance of chloropromazine-induced eye changes. Dis. Nerv. Syst. 29 (3), Suppl. 19, 1968.
Session I. Social Aspects of the Cataract. Preparatory and Logistic Problems Chairman: J. François.- Social aspects of the cataract.- Cataract, a major cause of unnecessary blindness.- Biochemistry of cataract.- Genetics of cataracts.- Iatrogenic cataracts.- Cataract epidemology: Public Health implications and research needs.- General and ophthalmological problems preceding the operation.- Guidelines of haemorrhagic prophylaxis in cataract surgery.- General anaesthesia in cataract surgery.- Neuroleptanalgesia in ophthalmic surgery.- Local anaesthesia in cataract surgery.- Sterilization.- Instruments.- Microsurgery now and in the future.- Recent advances in microsurgical cutting technique.- Session II. Cataract in the Adult. Experimental Implantation of Crystalline Lens Chairman: J. Barraquer.- Lens surgery in the last decades.- Intracapsular lens extraction.- Directions for the use of alpha-chymotrypsin in enzymatic zonulolysis.- Phacoemulsification technique - special considerations.- Phacoemulsification - indications, contra-indications and results.- Small incision intra-ocular lens.- Extraction by ultrasonic phaco emulsification.- Cataract extraction by ultrasonic fragmentation (USF).- Phacoemulsification.- Pars plana lensectomy with ultrasonic fragmentation (USF).- Indications and techniques of bilateral cataract extraction.- Experimental implantation of crystalline lens.- Session III. Congenital Cataract and Cataract in the Young Pathological and Complicated Cataracts Chairman: A.E. Maumenee.- Congenital cataract - surgical problems.- Cataract in the young.- Traumatic cataract.- Preferred surgical methods in post-inflammatory cataract in young people and adults.- Cataract with retinal detachment.- Cataract extraction after filtering operation.- The surgicaltreatment of sub-luxated lenses.- Cataract surgery after penetrating keratoplasty.- Simultaneous cataract extraction and graft.- Session IV. Sutures-Incisions-Wound Healing Intra-operative Complications Chairman: D. Paton.- Choice and clinical evaluation of sutural material.- An evaluation of 9-0 monofilament polyglactin 910 synthetic absorbable suture in cataract surgery.- The cataract wound: Its closure and healing.- Suturing techniques: Continuous and interrupted.- Postoperative astigmatism in cataract surgery.- The uveal vascular system: Its importance and involvement with anterior chamber opening.- Vitreous loss prevention.- Operative complications of cataract surgery.- Operative complications of cataract surgery.- Eye surgery in a new hyperbaric room (vitreous loss prevention).- Session V. Early and Post-operative Complications Particular Clinical Conditions Chairman: R. Troutman.- General and local post-operative treatment.- Inflammatory complication.- Bleeding and its control.- Treatment of limbic fistule and epithelial invasion of the anterior chamber after cataract extraction.- Pupillary complications after cataract extraction.- Wound leak, collapse of the anterior chamber choroidal detachment.- Membrane formation following cataract surgery.- Management of advanced bullous keratopathy past-present-future (prosthokeratoplasty results).- Aphakic glaucoma.- Surgical management of aphakic glaucoma.- Maculopathy after intracapsular cataract extraction.- Retinal detachment in aphakia.- Treatment of retinal detachment in the aphakic.- Combined operation for cataract and glaucoma.- Session VI. Optical and Functional Treatment of Aphakia Chairman: M. Maione.- to optical and functional treatment of aphakia.- Psycho-optical aspects of the aphakic condition.-Optical correction of aphakia.- Extended wearing of contact lenses: An overview.- Silicone lenses in aphakia evaluation after one year.- Keratophakia today.- Session VII. Intraocular Implants in Extra or Intracapsular Extraction. Incidents and Complications with Intraocular Implants Chairman: A.E. Maumenee.- The Choyce anterior chamber implants.- Specular microscopy of the corneal endothelium and lens implant surgery.- Barraquer Shearing intraocular lens.- Unilateral traumatic and complicated cataract in children and young adults as a special indication for intraocular lens implants.- Intra- or extracapsular lens implantation.- Complications with intraocular lenses.- Complications with intraocular lenses.- Intraocular implants in extra and intracapsular extraction incidents and complications.
Session I. Social Aspects of the Cataract. Preparatory and Logistic Problems Chairman: J. François.- Social aspects of the cataract.- Cataract, a major cause of unnecessary blindness.- Biochemistry of cataract.- Genetics of cataracts.- Iatrogenic cataracts.- Cataract epidemology: Public Health implications and research needs.- General and ophthalmological problems preceding the operation.- Guidelines of haemorrhagic prophylaxis in cataract surgery.- General anaesthesia in cataract surgery.- Neuroleptanalgesia in ophthalmic surgery.- Local anaesthesia in cataract surgery.- Sterilization.- Instruments.- Microsurgery now and in the future.- Recent advances in microsurgical cutting technique.- Session II. Cataract in the Adult. Experimental Implantation of Crystalline Lens Chairman: J. Barraquer.- Lens surgery in the last decades.- Intracapsular lens extraction.- Directions for the use of alpha-chymotrypsin in enzymatic zonulolysis.- Phacoemulsification technique - special considerations.- Phacoemulsification - indications, contra-indications and results.- Small incision intra-ocular lens.- Extraction by ultrasonic phaco emulsification.- Cataract extraction by ultrasonic fragmentation (USF).- Phacoemulsification.- Pars plana lensectomy with ultrasonic fragmentation (USF).- Indications and techniques of bilateral cataract extraction.- Experimental implantation of crystalline lens.- Session III. Congenital Cataract and Cataract in the Young Pathological and Complicated Cataracts Chairman: A.E. Maumenee.- Congenital cataract - surgical problems.- Cataract in the young.- Traumatic cataract.- Preferred surgical methods in post-inflammatory cataract in young people and adults.- Cataract with retinal detachment.- Cataract extraction after filtering operation.- The surgicaltreatment of sub-luxated lenses.- Cataract surgery after penetrating keratoplasty.- Simultaneous cataract extraction and graft.- Session IV. Sutures-Incisions-Wound Healing Intra-operative Complications Chairman: D. Paton.- Choice and clinical evaluation of sutural material.- An evaluation of 9-0 monofilament polyglactin 910 synthetic absorbable suture in cataract surgery.- The cataract wound: Its closure and healing.- Suturing techniques: Continuous and interrupted.- Postoperative astigmatism in cataract surgery.- The uveal vascular system: Its importance and involvement with anterior chamber opening.- Vitreous loss prevention.- Operative complications of cataract surgery.- Operative complications of cataract surgery.- Eye surgery in a new hyperbaric room (vitreous loss prevention).- Session V. Early and Post-operative Complications Particular Clinical Conditions Chairman: R. Troutman.- General and local post-operative treatment.- Inflammatory complication.- Bleeding and its control.- Treatment of limbic fistule and epithelial invasion of the anterior chamber after cataract extraction.- Pupillary complications after cataract extraction.- Wound leak, collapse of the anterior chamber choroidal detachment.- Membrane formation following cataract surgery.- Management of advanced bullous keratopathy past-present-future (prosthokeratoplasty results).- Aphakic glaucoma.- Surgical management of aphakic glaucoma.- Maculopathy after intracapsular cataract extraction.- Retinal detachment in aphakia.- Treatment of retinal detachment in the aphakic.- Combined operation for cataract and glaucoma.- Session VI. Optical and Functional Treatment of Aphakia Chairman: M. Maione.- to optical and functional treatment of aphakia.- Psycho-optical aspects of the aphakic condition.-Optical correction of aphakia.- Extended wearing of contact lenses: An overview.- Silicone lenses in aphakia evaluation after one year.- Keratophakia today.- Session VII. Intraocular Implants in Extra or Intracapsular Extraction. Incidents and Complications with Intraocular Implants Chairman: A.E. Maumenee.- The Choyce anterior chamber implants.- Specular microscopy of the corneal endothelium and lens implant surgery.- Barraquer Shearing intraocular lens.- Unilateral traumatic and complicated cataract in children and young adults as a special indication for intraocular lens implants.- Intra- or extracapsular lens implantation.- Complications with intraocular lenses.- Complications with intraocular lenses.- Intraocular implants in extra and intracapsular extraction incidents and complications.
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