First International Congress on Cataract Surgery Florence, 1978 Documenta Ophthalmologica Proceedings Series, Vol. 21

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.