Session I. Social Aspects of the Cataract. Preparatory and Logistic Problems Chairman: J. Fran?ois.- 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 surgical treatment of sub-luxated lenses.- Cataract surgery after penetrating keratoplasty.- Simultaneous cataract extraction and graft.- Session IV. SuturesIncisionsWound Healing Intra-operative Complications ChailƒÐ