No abstract available.
Macular Edema*

Objective: To report the efficacy and safety of intravitreal pegaptanib sodium (IVP) on macular edema (ME) due to branch retinal-vein occlusion (BRVO) among patients intolerant to intravitreal triamcinolone acetonide (IVTA). Methods: Four eyes with ME due to BRVO were included in this interventional case series. The main outcome measures were best-corrected visual acuity (BCVA), central macular thickness (CMT), intraocular pressure (IOP), and adverse effects. Results: There was a significant decrease in mean CMT from 524.50 ± 141.12 to 293.75 ± 130.75 microns (p = 0.009) after IVP injection. BCVA improved in all 4 eyes after IVP. Mean IOP after IVP was 13.60 ± 3.21. No ocular or systemic complications were observed. Conclusion IVP appears to be safe and effective in decreasing retinal thickness and improving VA in eyes with ME due to BRVO. IVP is a potential treatment for eyes that are intolerant to IVTA.
Macular Edema

PURPOSE: To evaluate the repeatability of macular thickness measurements using time domain (TD) OCT and spectral domain (SD) OCT in diabetic macular edema. METHODS: In 42 eyes of 42 patients with diabetic macular edema, three consecutive macular measurements were performed with TD OCT and SD OCT, and measurements for macular thickness and total macular volume obtained by the two OCTs were compared. The within-subject standard deviation (Sw), coefficient of variation (CVw), and intraclass correlation coefficient (ICC) were calculated to assess repeatability, with agreement between measurements assessed with Bland Altman plots. The correlations were also evaluated via the Pearson's correlation coefficient. RESULTS: The Sw of TD OCT and SD OCT for foveal thickness, total macular volume were 29.67 micrometer/16.44 micrometer, 1.26 mm3/0.23 mm3, respectively, and were significantly lower in SD OCT. The ranges of the respective CVw and ICC values were 1.10-2.78%, 0.78~0.96 for TD OCT, and 0.29~0.94%, 0.92~0.99 for SD OCT. The SD OCT showed better repeatability for macular thickness measurements (all p< or =0.001). The 95% limits of agreement for foveal and total macular volume were 88.9 micrometer, 2.4 mm3, respectively. The Pearson's correlation coefficients of macular thickness and total macular volume between the two OCT methods were statistically significant (p=0.88-0.99). CONCLUSIONS: Although both OCTs proved reliable for macular thickness measurements in diabetic macular edema, SD OCT shows better repeatability than TD OCT. Although macular thickness measurements obtained from the two OCTs cannot be used interchangeably, there were statistically significant correlations between measurements obtained using the two OCTs.
Eye ; Humans ; Macular Edema

PURPOSE: To assess the correlation between retinal thickness determined with a retinal thickness analyzer (RTA) and the responses of multifocal electroretinogram (mfERG) in patients with diabetic macular edema. METHODS: RTA and mfERG were performed in patients with diabetic macular edema (20eyes, 10 patients) and normal subjects (10eyes, 10 patients). The measured retina of RTA and mfERG overlapped based on the anatomical landmarks of the fundus. The center of macula was defined as "Area 1", and the central 5 degree retina including the center of macula was defined as "Area 2". The correlations between retinal thickness and the local responses in each area were assessed. RESULTS: The mean retinal thickness of patients with diabetic macular edema was significantly greater than that of normal subject, and the results of mfERG typically represented decreased amplitudes and delayed latencies. In the matching of retinal thickness and local responses in Area 2, amplitudes of N1 & P1 decreased and latency of P1 delayed as the retinal thickness increased. The correlation was prominent in patients with diabetic macular edema. CONCLUSIONS: In the matching of RTA and mfERG of patients with diabetic macular edema, retinal thickness and local responses were significantly correlated.
Humans ; Macular Edema* ; Retina ; Retinaldehyde*

No abstract available.
Cornea ; *Corneal Edema ; Edema ; Humans ; *Macular Edema ; Pseudophakia ; Visual Acuity

No abstract available.
Cornea ; *Corneal Edema ; Edema ; Humans ; *Macular Edema ; Pseudophakia ; Visual Acuity

PURPOSE: To investigate the correlation between the severity of diabetic retinopathy and the responses of multifocal electroretinogram (mERG). METHODS: The amplitude and peak time of mERG was evaluated in a group of 88 diabetics and 20 control subjects. The severity of diabetic retinopathy was determined according to the ETDRS scale using color fundus photographs and fluorescein angiograms. RESULTS: The amplitudes of the summed mERG and the central seven hexagons were significantly lower in diabetic patients compared with control subjects, and the more severe the diabetic retinopathy was , the less the amplitude was (P<0.05). The peak times of the summed mERG and the central seven hexagons were significantly delayed in diabetic patients, and the peak time was increased in parallel with the severity of retinopathy (P<0.05). These significant correlations between mERG responses and the severity of diabetic retinopathy was maintained even after the exclusion of patients with diabetic macular edema. CONCLUSIONS: The macular function in diabetic patients is correlated with the grade of diabetic retinopathy, and mERG may have a clinical application in evaluating macular function in these patients.
Diabetic Retinopathy* ; Fluorescein ; Humans ; Macular Edema

PURPOSE: To invest characteristics of the clear oil-drop residue observed in the vitreous cavity after intravitreal triamcinolone acetonide injection (IVTA). METHODS: Fifty three eyes which received a IVTA for the treatment of macular edema due to a variety of causes were enrolled in the study. Slit-lamp examination, and dilated fundoscopic examination had been performed in all patients from injection to at least two months. We compared Group 1 (nonpurified triamcinolone injection) to Group 2 (purified triamcinolone injection). RESULTS: The clear oil-drop residues were mainly observed in the superior portion of the vitreous cavity. They attached to cortical fibers of the vitreous or floated in the vitreous cavity, and had a mobility. They had a various size, shape, and existed anywhere. They were present at 3 days initially and decreased in size and number as time goes by. Group 1 had the clear oil-drop residues in 11 eyes of 29 eyes, but Group 2 in 5 eyes of 24 eyes. Eyes in Group 2 had less residues in number. CONCLUSIONS: The clear oil-drop residues can be observed after IVTA and decanting decreased them after IVTA significantly.
Humans ; Macular Edema ; Triamcinolone Acetonide ; Triamcinolone*

PURPOSE: To compare macular thickness measurements obtained from time domain optical coherence tomography (TD-OCT) and 2 spectral domain (SD) OCTs and to evaluate their repeatability and agreement in normal subjects and diabetic macular edema patients. METHODS: Fifty-four healthy, normal subjects and 26 diabetic macular edema patients were participated in this study. In a randomly selected eye from each subject, two serial macular measurements were obtained from TD-OCT (Stratus OCT) and SD-OCTs (Cirrus HD-OCT, Spectralis HRA+OCT) by an experienced technician in random order. Nine areas of macular thickness map and repeatabilities obtained by the 3 OCTs were compared. RESULTS: In relative repeatability, SD-OCT showed better results overall compared to TD-OCT. Macular thickness was greatest in the Spectralis HRA+OCT in both normal subjects and diabetic macular edema patients, followed by Cirrus HD-OCT and Stratus OCT. In normal subjects, regardless of the type of comparison between the machines there was a statistically significant difference in all 9 areas. CONCLUSIONS: While the TD-OCT and the 2 SD-OCTs are reliable for macular thickness measurement, SD-OCT has better measurement repeatability compared with TD-OCT. Because macular measurements obtained from the 3 OCT systems cannot be interchanged, an effort should be made to standardize the measurement of each system.
Eye ; Humans ; Macular Edema ; Tomography, Optical Coherence

We reviewed 92 eyes(65 patients) of diffuse diabetic macular edema which were treated with grid laser photocoagulation and followed up for more than 4 months from March 1992 to March 1997. There were improvements of visual acuity in 24 eyes(26.1%)and non changes in 50 eyes(54.3%), and 18 eyes(19.6%) showed worsened visual acuity. Initial visual acuity, presence of clinically significant macular edema and severity of retinopathy had not significant effects on visual outcome(P>0.05). Patients with grid photocoahulation without panretinal photocoagulation showed significantly good results than panretinal photocoagulation before or after grid photocoagulation(p<0.05).
Humans ; Light Coagulation* ; Macular Edema* ; Visual Acuity