Reconstruction of Periocular Defects with Rhomboid Flap: Surgical Results

Pur po se: To review the surgical results in patients who underwent an eyelid reconstruction with rhomboid flap after periorbital and medial canthal tumor excision. Ma te ri al and Met hod: This study included 18 patients who underwent eyelid reconstruction with rhomboid flap after periorbital and medial canthal tumor excision. The patient charts were reviewed for topographic data, tumor features, surgical technique, and postoperative results. Re sults: The mean age of the patients (10 women, 8 men) was 58 years (age range: 22-78 years). The lesion was located in the inferior periorbital-malar area in 8 patients, in the medial canthal area in 8 patients and in the lateral periorbital area in 2 patients. Mean tumor diameter was 8.9 mm (range: 5-13.5 mm). Rhomboid flap was used alone in 14 patients (78%) and in combination with nasojugal advanced flap and semicircular flap in 2 patients (11%) each. The skin defect could be closed primarily in all patients, except one. A secondary surgical intervention was required for ectropion and pyogenic granuloma excision in 1 patient each. The aesthetic outcome was satisfactory in all patients. Mean follow-up time was 23 months (range: 2-64 months). Dis cus si on: Rhomboid flap can be used for medial canthal and periorbital eyelid reconstruction after tumor excision. This flap technique can be combined with other reconstruction methods for large defects. After surgery, aesthetic and functional results are satisfactory in most patients, whereas surgical complications and need for a secondary surgery are rare. (Turk J Ophthalmol 2012; 42: 280-3

Effect of Ultrasound Time on Macular Thickness and Visual Acuity in Cataract Surgery

Pur po se: The aim of this study was to investigate the effect of ultrasound time on macular thickness and the influence of macular thickness on visual acuity after uneventful phacoemulsification surgery. Ma te ri al and Met hod: In this study, 42 eyes of 30 cataract patients who underwent uncomplicated phacoemulsification surgery were evaluated. The phacoemulsification was performed using 20% “pulse mode” ultrasound energy. The ultrasound time of each case was noted. Visual acuity (logMAR) and macular thickness were measured pre- and postoperatively. Macular thickness was measured by “spectraldomain” optical coherence tomography using “macular map 6” (MM6) programme. Re sults: All patients who underwent uncomplicated phacoemulsification surgery showed a statistically significant improvement in bestcorrected visual acuity in postoperative first and third months (p=0.001). When minimum central macular, mean central zone, mean parafoveal and mean perifoveal macular thicknesses in the postoperative first week, first month and third month were compared with the preoperative values, a statistically significant increase in all zones was detected (p=0.001). The mean ultrasound time applied was 128 sec. ±11 SD: 70.17. No statistically significant correlation was found between ultrasound time and increase in macular thickness in the postoperative first week, first month and third month. There was no significant correlation between best-corrected visual acuity and minimum central macular/central zone macular thickness. Dis cus si on: This study shows that in patients who underwent uneventful phacoemulsification surgery, there is an increase in macular thickness independent of ultrasound time. We also found no correlation between macular thickness and visual acuity. (Turk J Ophthalmol 2011; 41: 286-90

Comparison of Central Corneal Thickness Measurements by Ultrasonic Pachymetry and Orbscan II Corneal Topography and Evaluation of Ultrasonic Pachymetry Repeatability

Objectives: Comparison of central corneal thickness (CCT) measurements by ultrasonic pachymetry and Orbscan II corneal topography and evaluation of ultrasonic pachymetry repeatability for same observer. Materials and Methods: The study included 132, 82, and 80 eyes of 66 patients with primary open-angle glaucoma (POAG), 41 patients with ocular hypertension (OHT), and 40 controls, respectively. All subjects were subjected to routine ophthalmic examination. Orbscan II (Bausch&Lomb) corneal topography and ultrasonic pachymetry (Nidek Ultrasonic Pachymetry UP-1000) were used for measurement of CCT. ANOVA (Turkey test) was used for variable distribution, paired sample t-test was used for repeated measurements, and the analyses were done by SPSS 20.0. Results: Mean CCT was 558.9±37.2 µm by ultrasonic pachymetry and 553.4±37 µm by corneal topography. There was a significant difference between the two measurements (p<0.0001). CCT was mean 5.55±8.28 µm thicker by ultrasonic pachymetry compared to corneal topography. There was no significant difference between the two genders (p>0.05). CCT was 555±39.2 µm, 564.3±28.4 µm, and 559.7±41.5 µm by ultrasonic pachymetry in POAG, OHT, and control subjects, respectively; CCT was 550.3±38.3 µm, 558.5±28 µm, and 553.2±42.5 µm by Orbscan II corneal topography in POAG, OHT, and control subjects, respectively. There was a significant linear correlation between Orbscan II corneal topography and ultrasonic pachymetry in CCT measurements (r=0.975, p<0.0001). Repeatability of ultrasonic pachymetry for same observer was (ICC value) 0.990. Conclusion: There is a significant correlation between Orbscan II corneal topography and ultrasonic pachymetry in CCT measurements. These two methods of measurements should not be substituted for each other, since ultrasonic pachymetry measures CCT greater than Orbscan II corneal topography. Repeatability of ultrasonic pachymetry for same observer is very high. (Turk J Ophthalmol 2014; 44: 263-7

Primer açık açılı glokom ve oküler hipertansiyonlu hastalarda patern elektroretinogram ve optik koherens tomografi glokom parametrelerinin karşılaştırılması

WOS: 000219246900002PubMed ID: 27800239Objectives: To investigate the correlation of visual field (VF), pattern electroretinography (PERG) and Fourier domain optical coherence tomography (FD-OCT) results in patients with ocular hypertension (OHT) and early primary open-angle glaucoma (POAG). Materials and Methods: The study included 72 eyes of 37 patients with early POAG, 76 eyes of 38 patients with OHT, and 60 eyes of 30 controls. All subjects underwent full ophthalmologic examination, VF assessment with 24-2 Humphrey standard automated perimetry (Swedish Interactive Thresholding Algorithm (SITA)-Standard), retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) thickness measurement with FD-OCT, and PERG P50 and N95 wave latency and amplitude measurements with electroretinography (Nihon Kohden). Results: With the exception of the nasal quadrant, all GCC parameters and RNFL results were significantly lower in the POAG group compared to the OHT and control groups. There was no statistically significant difference between the OHT and control group. PERG amplitudes were lower in the POAG and OHT groups than in the control group. Reduction in N95 amplitude was greater than that of P50 amplitude. No difference was detected in PERG latencies among groups. GCC was significantly correlated with VF and RNFL in the POAG group. Conclusion: Significant thinning of the GCC and RNFL occurs in addition to VF pathologies in patients with early POAG, and these examinations should be concomitantly evaluated. During diagnostic assessment of patients with early POAG, GCC and RNFL analysis by FD-OCT are highly effective. GCC is as reliable as RNLF in the early diagnosis of glaucoma and there is a highly significant correlation between them. Dysfunction of ganglion cells in patients with OHT may be detected earlier using PERG amplitude analysis