[The history of the first attempt to produce marijuana-based medicines: Interview with Antônio José Alves].

The debate over marijuana regulation has gained strength in recent years, due to its therapeutic potential. Despite this, there is still a lot of prejudice related to the use of medical marijuana. In the mid-1990s, Lafepe proposed to produce a Cannabis sativa-based medicine.

Microscopic analysis of an opacified OFT CRYL® hydrophilic acrylic intraocular lens.

A 51-year-old patient underwent posterior vitrectomy with perfluoropropane gas injection, phacoemulsification, and implantation of an Oft Cryl® hydrophilic acrylic intraocular lens (IOL) because of traumatic retinal detachment and cataract in the right eye. On the first postoperative day, gas was filling the anterior chamber because of patient's non-compliance in terms of head positioning, and was reabsorbed within one week. Eight months later, the patient returned complaining of a significant decrease in vision.

Incidence of posterior capsule opacification following the implantation of a foldable hydrophilic acrylic intraocular lens: a 4 year follow-up study.

Purpose: To evaluate the incidence of posterior capsule opacification (PCO) four years after the implantation of a hydrophilic acrylic intraocular lens (IOL).

Methods: Fifty-eight randomly selected eyes from 58 patients were analyzed four years after phacoemulsification and Ioflex IOL implantation. The patients underwent an ophthalmic examination to detect PCO and a detailed medical history was obtained.

Late opacification in hydrophilic acrylic intraocular lenses: analysis of 87 eyes in a random sample of 102 patients.

Purpose: To report the incidence of late postoperative opacification of a hydrophilic acrylic foldable intraocular lens (IOL).

Setting: Altino Ventura Foundation, Pernambuco, Brazil.

Design: Cross-sectional study.

[Refractive and topographic changes of ipsilateral rotational autokeratoplasty with a crescent-shape 0.5 mm resection of the inferior cornea in keratoconus after a 24 months follow-up].

Introduction: Ipsilateral rotational penetrating autokeratoplasty technique may be an alternative to minimize the problem of long waiting lists for transplantation due to keratoconus.

Purpose: To report the visual outcomes in keratoconus patients after ipsilateral rotational penetrating autokeratoplasty technique (IRPAK) associated with a crescent-shape resection of 0.5 mm of the inferior cornea.

[Ipsilateral rotational autokeratoplasty with 0.5 mm resection of inferior corneal crescent, in keratoconus].

Purpose: To report the visual outcomes in keratoconus after ipsilateral rotating penetrating autokeratoplasty technique (IRPAK) associated with resection of 0.5 mm of inferior corneal crescent.

Methods: According to a prospective, longitudinal, series of cases, the authors analyzed visual results of six patients with keratoconus, who underwent an IRPAK, by two trepanations superiorly coincident and with a difference of 0.