Adjustment of guidelines for exposure of the eye to optical radiation from ocular instruments: statement from a task group of the International Commission on Non-Ionizing Radiation Protection (ICNIRP).

A variety of optical and electro-optical instruments are used for both diagnostic and therapeutic applications to the human eye. These generally expose ocular structures to either coherent or incoherent optical radiation (ultraviolet, visible, or infrared radiation) under unique conditions. We convert both laser and incoherent exposure guidelines derived for normal exposure conditions to the application of ophthalmic sources.

Endoscopic technique for suturing posterior chamber intraocular lenses.

A challenge of the sutured posterior chamber intraocular lens (IOL) technique is to perform blind actions behind the iris. To avoid imprecise transscleral sutures and complications, we use an endoscopic procedure with 2 goals: to control the entry site of the needle penetration and of the haptic location. The endoscopic technique allows retroiris control during transscleral suturing and iridociliary IOL implantation.

[Micro-endoscopy of the lacrimal apparatus combined with Erbium YAG laser: an anatomical study. New methods of imaging].

Purpose: To study the anatomic structure and the endoscopic aspect of the lacrimal drainage system and to evaluate the efficacy of the Erbium laser with microendoscope in lacrimal obstruction.

Methods: Twenty lacrimal ducts from ten fresh cadaver heads were used to lead a special rigid probe of 1.1.

One year clinical results of photoastigmatic refractive keratectomy for compound myopic astigmatism.

Purpose: To evaluate the efficacy, predictability, and safety of excimer laser photoastigmatic refractive keratectomy (PARK) to correct compound myopic astigmatism.

Setting: Departments of Ophthalmology, Robert Debré Hospital and Rothschild Foundation, Paris, France.

Methods: This retrospective study included 27 eyes with compound myopic astigmatism treated with a Nidek EC 5000 excimer laser.

[Multifocal implants of 3 optic zones: optical performance and clinical functional results].

Purpose: Evaluation of multifocal IOL (three optical zones).

Methods: Twenty patients were implanted. Main outcome measures were: uncorrected and best corrected distance and near acuity, brigthness acuity test, contrast acuity with differents methods: Pelli-Robson Chart, Gradual System, and spatial visual integration (SVI).