Comparison of three different diffractıve multifocal intraocular lenses with a +2.5, +3.0, and +3.75 diopter additıon power

Purpose: To compare the functional outcomes and astigmatic tolerability after implantation of multifocal intraocular lenses (IOLs) with a +2.5, +3.0, and +3.75 diopter (D) addition power

Ophthalmologic Manifestations and Retinal Findings in Children with Down Syndrome

Purpose. To evaluate ocular findings in children with Down syndrome and to compare with the healthy children group. Methods. The study patients were divided into two groups as the diagnosed Down syndrome group and the control group. The study was designed as a prospective and single-center study in Istanbul University Faculty of Medicine Department of Ophthalmology. The study included 93 patients in the age range from 7 to 18 years, who applied to the ophthalmology department of our clinic in the period from July 2017 to June 2018. The study included the patients allocated into the control group and the Down syndrome patients allocated into the patient group, containing 49 and 44 participants, respectively. All patients underwent complete ophthalmologic examination with biomicroscopy. Autorefractometer measurements were performed in all patients, and the best corrected visual acuity (BCVA) was determined with the use of the Snellen chart. All patients underwent spectral domain optical coherence tomography (SD-OCT) measurements for central foveal retinal (CRT), subfoveal choroidal (CCT), and peripapillary retinal nerve fiber layer (pRNFL) thicknesses. Results. The average CRT was 241.2 ± 25.7 microns in Down syndrome group and 219.4 ± 21.1 microns in the control group. There was a statistically significant difference between the groups in regards to CRT (p<0.001). The average pRNFL values were 123.1 ± 15.4 microns in the Down syndrome group and 102.2 ± 8.7 microns in the control group (p<0.001). Conclusions. In the subjects with Down syndrome, the incidence of lens opacities, strabismus, and amblyopia was higher than the control group. CRT and pRNFL were thicker in the Down syndrome group than in control group. This may represent retinal developmental changes in the patients with Down syndrome

SURGICALLY INDUCED ASTIGMATISM AFTER UPPER EYELID SURGERY IN ADULT PATIENTS

Objective: Surgical repositioning of the eyelids may change astigmatism. The change in astigmatism may affect the results of previous refractive procedures

Scleral fixation of hydrophobic acrylic intraocular lenses using a suture burial technique

The procedure involved an ab-externo scleral fixation technique using a double-armed 10-0 polypropylene suture with straight needles that require no scleral flaps. The IOLs are sutured to the sclera, the free suture ends are tied to the suture loops, and they are buried together under the sclera. Forty eyes of 37 patients were included. Postoperative complications are IOL capture in five eyes (12.5%), a significant IOL tilt in one eye (2.5%), recurrent UGH (uveitis-glaucoma-hyphema) syndrome in two eyes (5%), glaucoma in three eyes (7.5%), suture exposure in two eyes (5%) and IOL drop due to haptic breakage in one eye (2.5%). The technique can be effectively used for the refixation of dislocated hydrophobic acrylic IOLs by temporary haptic externalization through a corneal incision and for the treatment of aphakia with or without penetrating keratoplasty. Surgeons should be aware of the possibility of UGH syndrome due to IOL capture, especially in young eyes

Comparison of prediction accuracy of five different biometric formulas Comparação da acurácia preditiva de cinco fórmulas biométricas diferentes

© 2021. Revista Brasileira de Oftalmologia. All rights reserved.Objective: To compare the performance of Sanders-Retzlaff-Kraft/Theoretical, Hoffer Q, Barrett Universal II, Kane, and Hill-radial basis function formulas to calculate intraocular lens power in eyes with normal axial length, in terms of predicting target refraction by using partial coherence interferometry technology. Methods: Phacoemulsification and intraocular lens implantation were performed in 135 eyes of 135 patients with an axial length between 22 and 24.5 mm. Axial length, keratometry, and anterior chamber depth were measured by intraocular lens Master 500. Sanders-Retzlaff-Kraft/Theoretical, Hoffer Q, Barrett Universal II, Kane, and Hill-radial basis function formulas were used for intraocular lens power calculations. The difference between the expected postoperative refraction and the mean absolute prediction error was calculated for each eye. Statistical significance was evaluated at the level of p0.05). Conclusion: The study showed the third-generation (Sanders-Retzlaff-Kraft/Theoretical and Hoffer Q), fourth-generation (Barrett Universal II) and new-generation (Kane and Hill-radial basis function) intraocular lens power calculation formulas had similar performances regarding calculation of intraocular lens power to predict target refraction after phacoemulsification in eyes with normal axial length

Clinical features and prognosis of herpetic anterior uveitis: A retrospective study of 111 cases

To describe the clinical features and outcomes in patients with herpetic anterior uveitis. We reviewed the records of 111 patients with a clinical diagnosis of herpetic anterior uveitis seen at the Department of Ophthalmology, Istanbul Faculty of Medicine, from January 1996 to December 2006. Demographic and clinical features, recurrence rate, and visual outcome were analyzed. Fifty patients were male, 61 were female. Mean age at presentation was 39.2 ± 16.5 (6-74) years. Three atopic patients had bilateral involvement. Twelve patients had active or a past episode of herpes zoster ophthalmicus. Ocular findings were granulamatous anterior uveitis (93%), active keratitis or corneal scars (57%), elevated intraocular pressure (51%), iris atrophy (48%), distorted pupil (25%), and posterior synechiae (26%). Secondary glaucoma developed in two patients. None of the patients had posterior segment complications. The recurrence rate was 0.45/person-year. Topical corticosteroids and oral antiviral therapy were administered to all patients during active episodes. Long-term prophylactic oral acyclovir was used in 13%. Final visual acuity was worse than 0.5 in 17% of the involved eyes and was due to corneal scarring or cataract formation. Patients with iridocyclitis only had no permanent visual loss. Herpetic anterior uveitis is a recurrent granulomatous disease commonly associated with corneal involvement, iris atrophy, and transient intraocular pressure rise. Visual prognosis is good, especially in patients who have only anterior uveitis without corneal disease

Comparison of indications and results of penetrating keratoplasty in older geriatric patients with those in younger geriatric patients İlerı yaş ve daha genç gerıatrik hastalardakı penetran keratoplastı endikasyonlarinin ve sonuçlarinin karşilaştirilmasi

Introduction: This study aimed to compare the indications and outcomes of penetrating keratoplasty in geriatric patients and to compare the younger geriatric patients with older geriatric patients

Effect of photodynamic therapy on choroidal vascularity index in central serous chorioretinopathy Santral Seröz Koryoretinopatide Fotodinamik Tedavinin Koroidal Vasküler İndekse Etkisi

© 2019 Gazi Eye Foundation. All rights reserved.Purpose: To evaluate the changes in choroidal vascular index (CVI) after low fluence photodynamic therapy (PDT) in central serous chorioretinopathy (CSC). Materials and Methods: Patients with complaints of longer than 6 months who were diagnosed as CSC and underwent low fluence PDT was reviewed retrospectively. Patients with enhanced depth imaging (EDI) - optical coherence tomography (OCT) images before and after treatment were included in the study. Subfoveal area of1500 μm was evaluated after segmentation. CVI was defined as ratio of lumen area (LA) to total choroidal area (TCA) as measured on EDI-OCT images. Results: Twenty-three eyes of 19 patients were included to the study. The mean age was 43.21 ± 7.4, and 10 (52.6%) of the patients were male. Choroidal vascularity index was 65.4% before treatment, 64.82% on week 1, 62.42% at month 6, and 62.97% at month 6 after treatment. A significant decrease in choroidal vascular indecency was detected at months 1 and 6 after treatment when compared with those obtained before treatment (p<0.05). The subfoveal choroidal thickness was 457.65 ± 108.15 μm before treatment whereas 443.30 ± 108.38 μm on week 1, 416.60 ± 89.71 μm at month 1 and 411.47 ± 101.29 μm at month 6. The choroidal thickness measurements at all time points after treatment were significantly lower than those obtained before treatment (p <0.05). Conclusion: There was a significant decrease in choroidal vascular index after PDT in CSC. The choroidal vascular index may be a useful biomarker to monitor treatment response in CSC