Results of this study showed that CoNS are the most common agents causing contact lens-associated microbial keratitis, and the tuf gene sequencing analysis is a reliable method for distinguishing CoNS species. Also gentamycin, chloramphenicol, and ciprofloxacin are more effective than the other antibacterial agents against these types of bacteria.

PurposeAmeloblastoma is a non-encapsulated and slow-growing tumor with high recurrence rate. Orbital involvement by this neoplasm is an extremely rare entity. In this study, we present a systematic review on this situation along with clinical and paraclinical features of a case.MethodsAn electronic search was conducted on major medical sources. Data of the cases in the literature in addition to our own case were extracted, summarized, and statistically analyzed.ResultsA total of 36 other cases from 20 relevant studies were also reviewed. Review topics included epidemiology, clinical presentation, pathologic features, differential diagnosis, imaging, treatment, and prognosis. We provided a five-year history of a 50-year-old man with orbital/skull base invasion of plexiform maxillary ameloblastoma.ConclusionsMaxillary ameloblastoma is a locally aggressive neoplasm, and physicians must be alert to the biologic behavior of this tumor to detect any invasion to critical structures such as orbit and cranium. Orbital ameloblastoma causes significant morbidity and mortality. We advocate meticulous patient follow-up with regular clinical examinations and paraclinical work-up for timely detection of any invasion or recurrence. The best must be done to avoid extensions by aggressive removal of maxillary ameloblastoma.

Internal browpexy combined with blepharoplasty could be considered the better procedure in patients with upper eyelid dermatochalasis in terms of long-lasting stability and lateral brow elevation.

In this study, we aimed to evaluate changes of vertical palpebral fissure height (VPFH) after unilateral lateral rectus muscle recession. Twenty-five and twenty-six patients who were candidates for lateral rectus muscle recession were assigned into "with" and "without" intermuscular septum dissection study arms. The VPFH was measured at one-day before surgery and in two weeks and three months, postoperatively. Three months after surgery, significant increase of VPFH was observed in both groups (Paired -test;=0.005). Also, less widening of VPFH was observed in "with intermuscular septum dissection" group (Change in VPFH in "with intermuscular septum dissection" "without intermuscular septum dissection" groups: 0.48 mm 1.34 mm; ANCOVA test; <0.001). However, such results were not observed two weeks post-operatively (Change in VPFH in "with intermuscular septum dissection" "without intermuscular septum dissection" groups: -0.28 mm 0.28 mm; ANCOVA test; =0.302). Intermuscular septum dissection is recommended in lateral rectus muscle recession to partially prevent the undesirable increment of VPFH.

The purpose of this study is to compare visual outcomes of myopic refractive surgery, using tissue saving (TS), a standard ablation profile by a Technolas 217z100, and aberration smart ablation (ASA), an aspheric algorithm by a MEL 80 excimer laser in two eyes of one patient. In this prospective interventional paired-eye controlled study, a total of 100 eyes of 50 participants with myopia with or without astigmatism underwent thin-flap Femto-LASIK, using a Femto LDV femtosecond laser (Ziemer Ophthalmic Systems AG, Port, Switzerland). For each patient, one eye was randomly treated with tissue-saving algorithm (TS group) by the Technolas 217z100 excimer laser and the other eye was treated with optimized smart ablation profile (ASA group) by the MEL 80 excimer laser. Outcome measures were uncorrected distance visual acuities (UDVAs), corrected distance visual acuities (CDVAs), manifest refraction, higher-order aberrations (HOAs), contrast sensitivity, and patient satisfaction 12 months after surgery. At 12 months postoperative, "45 subjects returned with mean" UDVA was - 0.02 ± 0.08 Logarithm of mean angle of resolution (LogMAR) for TS group and - 0.02 ± 0.09 LogMAR for ASA group (P = 0.91). Of the TS eyes, 42/45 (93.3%) and 32/45 (71.1%) were within ± 0.5 D and ± 0.25 D of target refraction, respectively, and of the ASA eyes, 41/45 (91.1%) and 30/45 (66.6%) were within ± 0.5 D and ± 0.25 D of target refraction, respectively. No statistically significant differences were observed between groups in HOAs changes and contrast sensitivity function. Aspheric and non-aspheric LASIKs using the two different excimer lasers provide similar results in myopic and myopic astigmatism patients.

Dacryocystitis is a lacrimal sac and duct inflammation. It can be inherited or congenital. Two primary forms are acquired dacryocystitis, acute and chronic. The goal of this study is to recognize common bacteria causing nasolacrimal duct infection in children with congenital nasolacrimal duct obstruction and to determine their antimicrobial susceptibility profiles. This cross-sectional research was conducted from January to February 2017 in the Department of Ophthalmology affiliated to Isfahan University of Medical Sciences (center of Iran). Using phenotypic and genotypic approaches, identification of specimens was performed. Disc diffusion method was used for checking antibiotic susceptibility. All of the 59 isolates from the culture of specimens belonged to Grampositive cocci. Staphylococcus epidermidis was the predominant species (n= 44, 74.6%) followed by Staphylococcus aureus (n= 11, 18.6%), Staphylococcus haemolyticus (n= 2, 3.4%) and each of Staphylococcus saprophyticus, and Streptococcus pneumoniae (n= 1, 1.7%). Totally, the highest resistance was found against erythromycin and tetracycline while, chloramphenicol, and ciprofloxacin showed the highest susceptibility. The current research is useful in evaluating the suitable antibiotic in our area for the systemic treatment of dacryocystitis. The most effective agents against the most common isolates were chloramphenicol and ciprofloxacin. Since the bacteriology of nasolacrimal duct infections varies from region to region, it is recommended that further studies in other areas of our country can be detected the etiology of bacterial pathogens involved in acute infections.

Traumatic globe luxation is a rare condition in pediatric emergency medicine and can cause vision loss in some cases. Therefore, it is considered a critical condition in emergency rooms, and all physicians, particularly those working in emergency units, should be familiar with this condition and its management to be able to prevent organ-threatening complications, such as vision loss. This study reports the case of an 8-year-old girl with traumatic globe luxation due to falling from her bicycle. Her visual acuity (VA) decreased light perception. The condition was promptly managed with urgent lateral canthotomy and inferior cantholysis. At the one-month post-trauma follow-up, VA was 20/20 on the Snellen chart; no limitations in eye movement in any position of gaze were noted.

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