Blog

CENTRAL RETINAL ARTERY OCCLUSION IN A PATIENT WHO CONTRACTED COVID-19 AND REVIEW OF SIMILAR CASES

A 54-year-old male patient applied to our clinic with a sudden and painless loss of vision in his right eye. He was suffering from COVID-19. His best-corrected visual acuity of the right eye was finger counting from 30 cm. The fundus examination revealed the presence of a ‘cherry-red spot’ appearance in the right eye. In optical coherence tomography imaging, hyper-reflectivity was observed in the inner retinal layers as well as increased retinal thickness in the right eye. In fundus fluorescein angiography, delayed arterial filling and prolonged arteriovenous transit time were observed in the right eye. The patient was diagnosed with central retinal artery occlusion after the COVID-19 infection. In this study, we report this case and its management.

Keywords: macula; retina.

Read More

CHANGES IN VISUAL FIELD INDICES AFTER PTERYGIUM SURGERY

Objectives: This study was a prospective evaluation of changes in the results of visual field tests taken before and after pterygium excision.

Methods: This was a prospective, single-center study. Seventy-five eyes of 75 patients who had undergone pterygium excision with autograft implantation were enrolled. All of the patients had stage III pterygium according to the Johnston classification. The mean deviation (MD), pattern standard deviation (PSD), and visual field index (VFI) global index changes after pterygium excision were compared to evaluate the effect of pterygium on visual field analysis.

Results: The mean preoperative MD value was -3.04±2.63 dB (range: -14.84-0.62 dB) and the mean postoperative MD value was -1.83±2.09 dB (range: -13.82-1.74 dB) (p<0.001). The mean preoperative PSD value was 2.59±1.92 dB (range: 1.16-12.76 dB) and the mean postoperative PSD value was 2.41±1.62 dB (1.15-13.29 dB) (p>0.05). The mean preoperative VFI value was 96.01±4.46% (range: 68-100%) and the mean postoperative VFI value was 96.28±4.18% (range: 70-100%) (p>0.05).

Conclusion: After pterygium excision, the MD improved significantly. However, the PSD and VFI did not change significantly. The significant change in MD value was related to the reduction in corneal light scattering, contrast sensitivity, aberrations, and blockage on the optic axis.

Keywords: Mean deviation; pattern standard deviation; pterygium surgery; visual field index; visual field tests.

Read More

THE EVALUATION OF A NEW IOL WITH EXTENDED DEPTH OF FOCUS TO INCREASE VISUAL ACUITY FOR INTERMEDIATE DISTANCE

Yazarlar: Fikret Ucar, Servet Cetinkaya

Yayın tarihi: 2021/11

Dergi: SN Comprehensive Clinical Medicine

Cilt: 3

Sayı: 11

Sayfalar: 2285-2291

Yayıncı: Springer International Publishing

Açıklama

To compare the visual and refractive outcomes of a new intraocular lens (IOL) with extended depth of focus (Tecnis Eyhance IOL) and Tecnis Monofocal IOL, retrospectively. Eighty-five eyes of 85 patients with cataract who had undergone standard phacoemulsification and Tecnis Eyhance (ICB00) intraocular lens (IOL) implantation operation (group 1), and 83 eyes of 83 patients with cataract who had undergone standard phacoemulsification and Tecnis Monofocal (ZCB00) IOL implantation (group 2) between April 2019 and May 2019 were compared in terms of visual outcomes. There were no significant differences between the two groups with respect to preoperative and postoperative spherical, astigmatic, and spherical equivalent (SE) values (p > 0.05). The mean postoperative spherical, astigmatic, and SE values were significantly lower than those of preoperative values in both groups (p < 0.05). The mean …

Read More

THE EVALUATION OF POSTOPERATIVE OBJECTIVE AND SUBJECTIVE REFRACTION FOR PREMIUM INTRAOCULAR LENSES

Yazarlar: Fikret Ucar, Servet Cetinkaya

Yayın tarihi: 2021/2/5

Dergi: Revista Brasileira de Oftalmologia

Cilt: 79

Sayfalar: 386-390

Yayıncı: Sociedade Brasileira de Oftalmologia

Açıklama

Purpose: To evaluate six different premium IOLs retrospectively in respect to both subjective and objective refraction after cataract operation. Methods: Five hundreds and seventy eyes of 285 patients with bilateral cataract who had undergone phacoemulsification and IOL implantation operation between February 2017 and September 2018 were enrolled in this study. The mean age of the patients was 57.78 ± 7.49 (41-71) years. Out of 285 patients 137 were male (48.07%) and 148 were female (51.93%). TheIOLsusedare: RayOne Trifocal (Rayner, Worthing, UK), Lucidis (Swiss Advanced Vision, Neuchâtel, Switzerland), PanOptix (Alcon, Fort Worth, USA), LentisMplus (Oculentis, Berlin, Germany), TecnisSymfony (Abbott, Illinois, USA) and Acriva Trinova (VSY Biotechnology, Istanbul, Turkey). Results: There were no significant differences among the groups regarding age, sex, axial length, the mean preoperative and postoperative uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), the mean preoperative spherical equivalent (SE) and the mean postoperative SE (subjective measurement) (P> .05). The postoperative refractions measured with autorefractometer were more myopic than subjective refractions in all patients except the patients who had PanOptix IOL. In postoperative twelfth month, the mean UCVA arrived 0.00 logMAR in 405 eyes (78.48%) , however, the mean autorefractometric measurement was -1.28 ± 1.02 (0.00_-2.75) D. Conclusion: The autorefractometer measurements of all patients who had premium IOLs except PanOptix IOL were not coherent with their visual acuities postoperatively. The ophthalmologists …

Read More

AN UNUSUAL APPROACH TO REDUCE PAIN FOLLOWING LASIK SURGERY

Yazarlar: F Ucar, Servet Cetinkaya, Lutfi Seyrek

Yayın tarihi: 2021

Dergi: Turkiye Klinikleri Journal of Ophthalmology

Cilt: 30

Sayı: 2

Sayfalar: 92-96

Açıklama

Objective: To evaluate the effectiveness of topical 0.4% ketorolac tromethamine usage with contact lenses following laser-as-sisted in situ keratomileusis (LASIK) surgery, for post-operative pain reduction. Material and Methods: Two hundred and ninety two eyes of 146 patients who underwent LASIK surgery under topical anesthesia were included in the study. Contact lenses soaked in a 0.4% solution of ketorolac tromethamine were applied to 148 eyes of 74 patients who had undergone LASIK surgery for refractive errors (Group 1). Contact len-ses with no medication were applied to 144 eyes of 72 patients who had undergone LASIK surgery for refractive errors (Group 2). Pain scores were recorded in both groups every hour from hour 1 to hour 5, posto-peratively. Results: There were no significant differences between the two groups with regard to age or sex (p> 0.05). No significant difference was found between …

Read More

THE OUTCOMES OF POSTERIOR-CHAMBER PHAKIC INTRAOCULAR LENS IMPLATATION IN PATIENTS WITH HIGH MYOPIA

Yazarlar: F Ucar, Servet Cetinkaya

Yayın tarihi: 2020

Dergi: Turkiye Klinikleri Journal of Ophthalmology

Cilt: 29

Sayı: 3

Sayfalar: 224-230

Açıklama

Objective: To evaluate the outcomes of posterior-cham-ber phakic intraocular lens (pIOL) implantation in patients with high myopia. Material and Methods: Seventy-six eyes of 38 patients who had high myopia and undergone Eyecrylphakic IOL implantation were enrolled in the study. Eighteen of them (47%) were males and 20 (53%) were females. Their mean age was 28.97±4.10 (22-36) years. Uncor-rected visual acuity (UCVA), best corrected visual acuity (BCVA), au-torefractive and keratometric measurements were evaluated pre and postoperatively. Results: The mean 1st week, 1st month and 6th month postoperative spherical, astigmatic and spherical equivalent (SE) values were significantly lower than those of preoperative values, and the mean 1st week, 1st month and 6th month postoperative UCVA and BCVA values were significantly higher than preoperative values (p< 0.05). The mean 1st week, 1st month and 6th month postoperative an-terior chamber depth (ACD) values were significantly lower than pre-operative values (p< 0.05). There were no significant differences between preoperative and postoperative central corneal thickness (CCT), endothelial cell density (ECD) and intraocular pressure (IOP) measurements (p> 0.05). The postoperative first-week mean spherical value was 0.11±0.44 D, and it was stable until the 6th month. Postoper-ative 6th month mean endothelial cell loss was 3% in comparison with preoperative values. The difference was not significant (p> 0.05). Ad-ditionally, no abnormal morphologic changes in endothelial cell layer were observed in specular microscopy. Conclusion: Eyecrylphakic IOL implantation is …

Read More

INTRAOCULAR LENS IMPLANTATION WITH FLATTENED FLANGED INTRASCLERAL FIXATION TECHNIQUE IN PEDIATRIC APHAKIA

Yazarlar: Fikret Ucar

Yayın tarihi: 2022/1/25

Dergi: Journal of American Association for Pediatric Ophthalmology and Strabismus

Yayıncı: Mosby

Açıklama

Purpose
To evaluate the clinical outcomes of flattened flanged intrascleral fixation of the intraocular lens (IOL) in cases of pediatric aphakia without adequate capsular support.

Methods
The medical records of children who underwent flattened flanged intrascleral IOL implantation for aphakia with insufficient capsular support, subluxated cataract, ectopia lentis, and dislocated IOL were reviewed retrospectively. Best-corrected visual acuity, astigmatism, corneal endothelial cell loss, IOL tilt, and intra- and postoperative complications were evaluated.

Results
A total of 21 eyes of 16 patients were included. Mean patient age at time of surgery was 7.1 ± 3.8 years (range, 2-15). Mean follow-up time after surgery was 2.0 years. The mean pre- and postoperative best-corrected visual acuities were 1.03 ± 0.49 logMAR and 0.33 ±0.44 logMAR, respectively (P < 0.001). The mean preoperative astigmatism was 2.2 ± 0.9 D; and the …

Read More

SPONTANEOUS CORNEAL PERFORATION. ELECTRON J GEN MED. 2020; 17(5): EM241

Yazarlar: F Ucar, S Cetinkaya

Yayın tarihi: 2020

Kaynak: Electronic Journal of General Medicine

Cilt: 17

Sayfalar: 5

Açıklama

A male patient, 59 years of age, who had undergone a pterygium operation 45 days ago in another center, applied to our clinics for itching and burning complaints. The patient was examined and thinning of the cornea at the perilimbal region and intense hyperemia, inflammation and scarred tissue in the nasal conjunctiva were observed. Additionally, the patient had chronic dacryocystitis. Firstly, an external dacryocystorhinostomy (DSR) operation was applied. Three days after the operation, corneal perforation and iris prolapse occurred. An autograft, including conjunctiva, limbus and neighbouring corneal tissue with lamellar excision from the superior region of the same eye, was taken. With the help of 10/0 monofilament nylon sutures, the autograft was implanted. In the postoperative period, the patient’s cataract, which was present before the operation, progressed. In the postoperative 6th month, a cataract operation was performed. By the postoperative 7th month, the patient’s visual acuity was 0.00 logMAR and the perforation region had recovered completely.

Read More

İKİ FARKLI MARKA TORİK İNTRAOKÜLER LENS İMPLANTASYONUN KIYASLANMASI

Yazarlar: Fikret UCAR, Servet ÇETİNKAYA

Açıklama

Amaç: Kataraktı ve astigmatizması olan hastalarda astigmatizmayı düzeltmek için Tecnis toric İOL ile Acrysof toric İOL’lerinin görsel sonuçlarının kıyaslanması.
Gereç ve Yöntemler: Otuz sekiz hastanın 38 gözüne Tecnis torik İOL, 36 hastanın 36 gözüne Acrysoft torik İOL implante edildi. Hastaların kataraktı ve astigmatizması vardı. Ameliyatlarda 7 çeşit Tecnis torik İOL (: ZCT150, ZCT225, ZCT300, ZCT400, ZCT450, ZCT525, and ZCT600), 7 ceşit, Acrysof torik İOL (SN6AT3, SN6AT4, SN6AT5, SN6AT6, SN6AT7, SN6AT8, and SN6AT9) kullanıldı. İOL’lerin astigmatik değerleri 1.50 ile 6.00 D arasındaydı. Hastaların düzeltilmemiş görme keskinliği (DGK) ve en iyi düzeltilmiş görme keskinliği (EDGK), keratometre, refraktif ölçümleri ve İOL’ün aks hizası düzenli aralıklarla kontrol edilmiştir.
Bulgular: Her iki grupta ortalama postoperatif sferik ve silendirik değerler preoperatif değerlerden anlamlı şekilde daha düşüktü (P< 0.05) ve ortalama postoperatif DGK ve EDGK değerleri preoperatif değerlerden anlamlı olarak daha yüksekti (p< 0.05). DGK, EDGK, sferik ve silendirik değerler açısından iki grup arasında istatistiksel olarak anlamlı bir fark saptanmadı (p> 0.05). Sonuç: Hem Tecnis torik İOL hemde Acrysof torik İOL implantasyonunun, katarakt cerrahisi sırasında var olan korneal astigmatizmayı düzeltmek için etkin olduğu izlenmiştir. İkinci grup (Acrysof toric) hastaların ameliyat sonrası ortalama görme keskinlikleri, birinci grup (Tecnis toric) hastalara göre biraz daha iyi olmasına rağmen istatistiksel olarak anlamlı bir farklılık yoktu.

Read More