False and true accessory infraorbital foramina, and the infraorbital lamina cribriformis.

The infraorbital nerve (ION) and artery (IOA) course in the infraorbital canal (IOC) to exit through the infraorbital foramen (IOF). Few previous studies brought evidence of accessory IOF. Evaluation of the IOF in Cone Beam Computed Tomography (CBCT) is more accurate to determine whether or not foramina of maxilla are supplied by canaliculi deriving from the IOC. We performed a retrospective anatomical study of the CBCT files of 200 patients. An accessory infraorbital foramen located inferior to the infraorbital margin (AIOF) was found in 18/200 right maxillae and in 13/200 left ones. Canaliculi deriving from the IOC supplied accessory foramina in the sutura notha- AIOF(SN) - in 15 maxillae. Noteworthy, the AIOF(SN)-negative maxillae displayed the SN and the vascular foramina of Macalister. In 94% of cases the AIOF were unique. A single maxilla (3%) had a double AIOF. In a different case (3%) were found three accessory infraorbital foraminules transforming the anterior wall of the antrum into a veritable lamina cribriformis infraorbitalis. A single prior study distinguished AIOF from AIOF(SN), while most of different other ones were performed on dry bones. Therefore, the reports of prevalence for the number and location of AIOF should be regarded with caution. Foramina of the SN could equally get intraosseous and extraosseous supply, this distinction being accurately made in CBCT.

Constant features of the adult maxillary bone in the site of the premaxillary suture: the sutura notha, Macalister's foramina, Parinaud's canal, and the second angle of the canalis sinuosus of Wood Jones.

Developmental theories regarding the premaxillary (incisive) suture commonly overlook it separates the premaxillary and maxillary parts of the frontal process of maxilla. Thus, one would expect that neurovascular structures within this transitory mesenchymal zone to appear embedded within the adult frontal process of maxilla. The sutura notha (false suture, Weber's sutura longitudinalis imperfecta) is a poorly described, although constantly present, shallow groove in front of the anterior lacrimal crest, being perforated by a row of holes first described, to our knowledge, by Macalister, in 1884. Macalister's foramina should be discriminated anatomically from the accessory infraorbital foramina. Macalister's foramina lead into canals, usually described as vascular, within the frontal process. We demonstrate in cone-beam computed tomography that these canals, which correspond topographically to Parinaud's vascular canal, are connected, usually through a delicate intraosseous network, with Wood Jones' canalis sinuosus (i.e., the ampullar angle of this canal located above the upper canine tooth). As this later carries the anterior superior alveolar nerve and artery, it is reasonable to consider that the canalar network within the frontal process of maxilla could serve for an accessory distribution of that nerve to the nasolacrimal duct, the atrium of the middle nasal meatus, the agger nasi cell, as well as to the infraorbital (prelacrimal) recess of the maxillary sinus.

Investigation of importance of the structural parameters of the eyeball and of the technical parameters of cataract surgery on corneal endothelial changes.

The aim of the here presented study was to look into the importance of the structural parameters of the eyeball, in relationship with the technical parameters of cataract surgery regarding the corneal endothelial changes made by it. Material and method: The paper refers at a prospective study in which we included eighty-eight consecutive eyes from eighty-six different patients having age-related cataract and a visual acuity of a values less than 0.8 considering best possible correction with it. The patients didn't have other obvious causes for the decreased visual acuity. The patients included in the present study were admitted at the Ophthalmology Department from Bucharest University Emergency Hospital between the month of April 2015 and February 2016 (ten months). Results: When we compared lots A, B with C, in regarding to the decrease of EDC, the results were relatively very similar. We had only one comparison for which we obtained a statistical significance, and that was for cataracts classified as group IV of hardness; here, between the first and the third lot, at seven days postoperatively we obtain p = 0.0472812. Conclusions: The conclusion for the present research was that in regarding cataract phaco-emulsification surgery we obtained a statistical significance when it comes to the destruction of epithelial cells. The results were observed, giving the depth of the anterior chamber, in cataracts classified in subgroup IV of hardness, only between patients who had a small depth of chamber comparing with those who had a large depth of the anterior chamber of the eye. When it comes to patients who had severe cataracts and small ACD, we need to attract more attention when the surgeon performs the maneuver and to keep an eye on the use of the adhesives which has viscoelastic in order to obtain additional corneal protection. Abbreviations: ACD = anterior chamber depth; ECD = endothelial cell density, EPT = effective time of phacoemulsification.

Similarities and differences between three different types of white dot syndrome and the therapeutic possibilities.

White dot syndromes consists a group of inflammatory eye diseases with an unknown etiology involving the external retina, retinal pigment epithelium, choroid or combinations of them. They affect one or both eyes, at the same time or not. White dot syndromes are often self-limited, with a variable prognosis, depending on the type of the disease. The purpose of this article was to look at the similarities and the differences between the different types of syndromes and the therapeutic possibilities existing at present. Abbreviations: WDS = White dot syndromes, MEWDS = Multiple Evanescent White Dot Syndrome, APMPPE = Acute Posterior Multifocal Placoid Pigment epitheliopathy, SC = serpiginous choroiditis RPE = retinal pigment epithelium.

An overview of the influence and design of biomaterial of the intraocular implant of the posterior capsule opacification.

Posterior capsule opacification remains till nowadays one of the most hypothetical problems concerning the cataract surgery. When it comes in preventing PCO, this complication is made in multiple ways that concern, along with the surgery steps, the choice for the biomaterial of the intraocular implant lens. The concern of influence of the type of the used material (hydro-phob/ hydro-philic), of the design of the implant (1-piece IOL = monobloc vs. 3 - piece IOL - multipiece) and with the design at the edge, they all have been considered in multiple studies. This article performs a synthesis of those studies and establishes conclusions regarding possible choices. Abbreviations: PCO = Posterior capsule opacification, IOL = intraocular lens; LEC = lens epithelial cells.

Macular serpiginous choroiditis - case report.

Serpiginous choroiditis represents an inflammation, often asymmetric, situated at the level of the inner choroid, which is related to the retinal pigment epithelium and the choriocapillaris. It is known as a primarily idiopathic, but there are authors who consider it an autoimmune process. Many times, fundus autofluorescence is the investigation which is guiding the diagnosis, the management, also the follow-up together with the determination of the progressive visual prognosis. Local treatment is proven to be sometimes an adjunctive treatment often effective. Abbreviations: SC = Serpiginous choroiditis; RPE = Retinal pigment epithelium.