Low prevalence of diabetic retinopathy in patients with long-term type 1 diabetes and current good glycemic control - one-center retrospective assessment

PURPOSE

Despite progress in type 1 diabetes (T1DM) therapy, diabetic retinopathy (DR) is still a common complication. We analysed predictors and prevalence of DR in patients with T1DM lasting 10 years or more. All of the patients were considered to be currently in excellent glycemic control and treated using modern therapies.

METHODS

Study included 384 (80.7% women) T1DM patients participating in the Program of Comprehensive Outpatient Specialist Care at the University Hospital in Krakow between the years 2014 and 2020. A retrospective analysis of medical records was conducted.

RESULTS

The patients were on average 34 ± 9.2 years old, had a BMI 25.0 ± 3.9 and a T1DM duration of 20.5 ± 7.9 years. The mean level of HbA1c throughout the follow-up (mean duration 4.9 ± 1.4 years) was 6.9 ± 1%. The group included 238 (62.0%) patients treated with insulin pumps and 99 (25.8%) on multiple daily injections, 47 (12.2%) used both methods; almost all patients were on insulin analogues. DR was confirmed in 150 (39.1%) patients, from which 109 (28.4%) were diagnosed de novo. Severe DR was occurred in just 31 cases (8.1%). In the multivariate logistic regression, independent risk factors for the presence of DR were T1DM duration (OR 1.13; 95% CI, 1.09-1.19), HbA1c level (OR 1.41; 95% CI, 1.08-1.84), LDL level (OR 1.79; 95% CI, 1.16-2.87), and the combined presence of non-DR micro- and macrovascular chronic complications (OR 1.86; 95% CI, 1.16-3.03).

CONCLUSIONS

In this highly-selected group of T1DM patients, mostly female, the prevalence of both DR at any stage and severe DR was lower than earlier reported results from other cohorts. Independent risk factors for the DR cohort did not differ from previously reported studies.

The use of mineralocorticoid receptor antagonists in chronic central serous chorioretinopathy

AIM

To assess the effect of eplerenone on macular structure and function in patients with chronic central serous chorioretinopathy.

MATERIAL AND METHODS

17 eyes of 16 patients (aged 32-66 years) with chronic central serous chorioretinopathy treated at the Department of Ophthalmology and Ocular Oncology, Jagiellonian University in Cracow were enrolled. The duration of symptoms ranged between 4 and 24 months. The patients were dosed with eplerenone according to the scheme: first 25 mg/day for a week, then 50 mg/day for 3 months. The baseline examination and two follow-up visits (after 1-1,5 months and after 3-4 months respectively) involved best corrected visual acuity (Snellen, decimal scale), central retinal thickness in optical coherence tomography and visual disturbances in Amsler test.

RESULTS

The mean best corrected visual acuity improved from 0.61 (±0.25) to 0.67 (±0.28) and 0.72 (±0.28) at the first and second follow-up appointment, respectively. Central retinal thickness declined from 367 μm (±70) to 264 μm (±50) and 248 μm (±50) at the first and second follow up appointment, respectively (p<0.05). Amsler test findings improved in 10 eyes (58.8%), while the deterioration in central vision remained unchanged in 7 eyes (41.2%) at the first follow up appointment. During the second follow-up appointment, though, Amsler test improvement was reported in 7 eyes (50%), while the deterioration in central vision remained unchanged in 7 eyes (50%).

CONCLUSIONS

Our study suggests that eplerenone may provide an alternative treatment of chronic central serous chorioretinopathy, especially in patients with known contraindications to or ineligible for other treatments (for instance, retinal laser photocoagulation). Further randomized controlled trial is required.

Alström syndrome--a case report and literature review

PURPOSE

To report a case of Alström syndrome referred as bilateral macular degeneration.

MATERIAL AND METHODS

A 52 years old man was diagnosed with an over 30 years history of progressive visual acuity worsening in both eyes, with the presence of night blindness and photophobia. Since childhood the right eye has been positioned in a divergent deviation. General history revealed: high grade obesity, dilated cardiomyopathy with mitral insufficiency, diabetes mellitus type 2, hepatic cirrhosis with elevated serum enzymes, systemic hypertension. Family history: one patient's brother died at the age of 2 years because of a congenital heart disease, and the second brother was diagnosed for the congenital organic heart disease. The basic ophthalmic examination was performed with additional diagnostic methods including: kinetic visual field examination, Amsler grid test, panel D-15 test, fundus photography, ERG, EOG and VEP.

RESULTS

Best corrected visual acuity of both eyes was 0.1. Amsler grid and color vision tests were normal. Visual field revealed concentric contraction in both eyes. The funduscopy showed pale optic discs, atrophic maculopathy, golden appearance of peripheral and midperipheral fundus, coarser pigmentary changes with a "bone-spicule" configuration and arterioral narrowing. The red free pictures demonstrated the atrophy of internal retinal layers and the infrared pictures revealed the atrophy of the external layers of the retina in posterior pole of the fundus. The flash ERG showed reduced amplitude of photopic and scotopic b-wave. The multifocal ERG demonstrated the normal function of the central retina. EOG revealed decreased Arden ratio in both eyes; 1.68 in the right and 1.32 in the left. The pattern VEP revealed the P100 amplitude reduction by 80% and elongation of latency by 120% in the right eye and normal in the left eye. The flash VEP showed normal latency and amplitude reduction by 50% in both eyes.

CONCLUSIONS

Based on the results of performed tests the diagnosis of Alström syndrome was established. This rare congenital autosomal recessive condition is characterized by progressive cone-rod retinal dystrophy associated with obesity, sensorineural deafness, type 2 diabetes, congenital cardiac insufficiency secondary to dilated cardiomyopathy, systemic hypertension and kidney failure.

Exudative age-related macular degeneration or Best vitelliform macular dystrophy?--A case report

PURPOSE

To report a case of Best vitelliform macular dystrophy referred to the Department Ophthalmology in Krakow with a diagnosis of exudative age-related macular degeneration (AMD).

MATERIALS AND METHODS

70-years old man was diagnosed in our clinic because of a two years history of slow, progressive visual acuity worsening in both eyes with the presence of metamorphopsia. The basic ophthalmic examination was performed with additional diagnostic methods including: colour vision test (Panel D-15), Amsler grid test, contrast sensitivity test (Pelli-Robson chart), fluorescein angiography (FA), indocyanine green angiography (ICGA), electroretinogram (ERG), electrooculogram (EOG) and optical coherence tomography (OCT).

RESULTS

Visual acuity in the right eye was: 0.16 and in the left: 0.25. Amsler grid test revealed the presence of bilateral mild etamorphopsia with the relative central scotoma. Pelli-Robson test showed decreased contrast sensitivity perception in both eyes; PO > LO. On fundoscopy in macula of both eyes the symmetrical round, elevated lesions of 1.5 dd with the meniscus of subretinal creamy-yellow masses were present. The early frames of FA showed the presence of round lesions with distinct borders, unchanged in size and shape throught the examination, hypofluorescent in the lower and hyperfluorescent in the upper half of the lesions. Late frames of FA revealed the irregular hyperfluorescence also in lower aspects of the lesions. ICGA showed: round hypofluorescent lesions with isofluorescence in the upper part of the lesions. ERG--revealed no pathology, EOG--showed decreased light response and depressed Arden ratio in both eyes. OCT demonstrated hiperreflectivity of the retinal pigment epithelium with elevation of retina and deletion of the foveolar depression in both eyes.

CONCLUSIONS

Based on the results of performed tests the diagnosis of the Best vitelliform macular dystrophy was established. In some cases various pathologies involving the macula may mimic the exudative AMD. The basic ophthalmic examination supported by additional diagnostic methods allow to establish the definitive diagnosis in most cases of macular disorders.

[Diffuse atrophy of the choroid--a case report]

PURPOSE

The authors present a case of the 66-year-old female patient suffering from the diffuse atrophy of the choroid.

MATERIAL AND METHODS

The 66-year-old woman was referred to the Ophthalmological Clinic in Krakow with the diagnosis of choroideremia. The patient developed central vision problems (mainly in the left eye) and night blindness. We performed following investigations: distance and near visual acuity with Snellen charts, Amsler grid test, the investigation of the anterior and posterior segments of both eyes, and the fluorescein angiography as well as the infrared photo of the fundus. The assessment of ornithine serum level was performed.

RESULTS

The ophthalmological examination revealed: the distance visual acuity in the RE=0.5, and in the LE=0.25. The near visual acuity in the RE=0.5, in the LE=0.75. The Amsler grid test in the RE showed no pathology but in the LE revealed in the nasal aspect of the central visual field a relative scotoma. Fundoscopy, fluorescein angiography and infrared imaging revealed the broad patch form atrophy of the RPE and choriocapillaris within the whole fundus and also within the macula. The serum level of ornithine was within the normal limits.

CONCLUSIONS

Based on the results of performed investigations the definitive diagnosis of a very rare dystrophy--a diffuse atrophy of the choroid was established.