Impact of Diabetic Retinopathy on Sleep, Mood, and Quality of Life.

Purpose: Diabetic retinopathy (DR) is associated with retinal neuronal and vascular damage. DR has previously been shown to affect the photosensitive retinal ganglion cells (pRGCs). PRGCs are essential for the entrainment of circadian rhythms; thus, DR progression could lead to worsening sleep quality and mood. We investigate the relationship between increasing DR severity, and its impact on sleep quality and mood. Methods: A total of 430 participants with DR, and 303 healthy controls with no ocular disease or preexisting sleep disorders were recruited. DR severity was grouped as follows: 1, mild nonproliferative (NPDR); 2, moderate/severe NPDR; and 3, proliferative diabetic retinopathy (PDR). Sleep, mood, and quality of life were assessed using the Pittsburgh Sleep Quality Index (PSQI), quality of life (SF-36), and Hospital Anxiety and Depression Score (HADS) questionnaires. Data were analyzed by severity of DR, and correlated with sleep, QOL, and mood and compared to controls. Results: No significant difference between PSQI scores in the DR group or the control group was identified despite severity of DR. Mean anxiety and depression scores were within the normal range for both groups. Despite a lower general health and physical function, the DR group had lower anxiety scores than controls. Conclusions: These data show that even in severe DR, sleep quality is similar to controls. However, this could be explained by the majority of individuals in this study having good visual acuities in the better eye with a residual population of pRGCs remaining unaffected by DR.

Comparison of Optomap ultrawide-field imaging versus slit-lamp biomicroscopy for assessment of diabetic retinopathy in a real-life clinic.

PURPOSE: We aimed to assess the agreement between clinical assessment of diabetic retinopathy and Optomap ultrawide-field imaging (UWFI) in a real-life clinic setting. METHODS: Structured examination findings, from diabetic patients attending routine medical retina clinics in July 2011, were retrospectively compared with the grade obtained from Optomap UWFI images, graded independently by two ophthalmologists, taken at the same visit. RESULTS: A total of 84 eyes (42 patients) were examined, and 74 eyes (37 patients) were suitable for analysis. The hospital Eye Service slit-lamp biomicroscopy grades for retinopathy were: no diabetic retinopathy in zero eyes; background retinopathy in 21 eyes; preproliferative retinopathy in 34 eyes; and proliferative retinopathy in 19 eyes. For retinopathy, the agreement between the Optomap UWFI and clinical grading was moderate for both graders (κ=0.57 and κ=0.63), and there was almost perfect agreement between the two graders (κ=0.92). The clinical grades for the presence of photocoagulation scars were: no photocoagulation scars in 46 eyes and photocoagulation scars visible in 28 eyes, indicating substantial agreement between the Optomap UWFI and clinical grading for both graders (κ=0.73 and κ=0.64). There were two instances where proliferative retinopathy was documented clinically but graded as preproliferative by both graders of Optomap UWFI. These were investigated, and neither patient required treatment, ie, the difference in retinopathy grade would not have affected the patient outcomes. CONCLUSION: This study demonstrated moderate agreement between Optomap UWFI and hospital slit-lamp biomicroscopy grading of patients' retinopathy in a real-life medical retina clinic setting. The authors believe that Optomap UWFI is, not only a very useful adjunct to clinical examination in terms of detection and recording of retinopathy, but also, could have a role in standalone "virtual" clinics.

There is a trend for the diagnosis of glaucoma to be made at an earlier stage in 2010 compared to 2008 in Oxford, United Kingdom.

PURPOSE: New guidelines on glaucoma diagnosis and management were published by the National Institute of Clinical Excellence (NICE) in 2009. The aim of this study was to determine whether these guidelines on glaucoma referral have changed the numbers of patients diagnosed with glaucoma in Oxford and whether the severity of disease at presentation has altered between 2008 and 2010. METHODS: A retrospective study was undertaken of patients referred to a glaucoma case-finding clinic at the Oxford Eye Hospital in 2008 and 2010. Severity of glaucoma was assigned on the basis of the worse eye and defined according to mean deviation (MD) on 24-2 Humphrey visual field testing, with early glaucomatous visual field defects defined as MD less than -6 dB, moderate defects as MD between -6 and -12 dB and severe defects as MD more than -12 dB. Statistical analysis was undertaken using Chi squared and Mann Whitney tests. RESULTS: The number of referrals to this clinic increased from 521 patients in 2008, to 895 patients in 2010. 85 (16.3%) patients were diagnosed with ocular hypertension in 2008, compared to 144 (16.1%) in 2010. The number of patients diagnosed with glaucoma increased from 94 cases in 2008 to 113 cases in 2010, although the percentage of referrals diagnosed with glaucoma fell from 18.1% to 12.6%. More patients diagnosed with glaucoma in 2010 had early disease (61.9% in 2010 vs 48.8% in 2008, p = 0.03). Patients found to have glaucoma in 2010 had less severe visual field defects than in 2008: patients presented with a lower mean deviation (-6.36 dB in 2010, -7.95 dB in 2008, p = 0.03) and lower pattern standard deviation (5.44 dB in 2010, 6.64 dB in 2008, p = 0.02). However, there was no significant difference between age of presentation (65.1 years in 2010, 65.2 years in 2008, p = 0.82), and IOP (21.62 mmHg in 2010, 23.15 mmHg in 2008, p = 0.22). CONCLUSIONS: There has been a significant increase in number of referrals to the glaucoma case-finding clinic in Oxford between 2008 and 2010. The introduction of NICE referral guidelines in 2009 has had the benefit of increasing the absolute number of patients detected with glaucoma and has resulted in more patients being diagnosed with early disease. More effort needs to be made to reduce the number of false positive referrals. In addition, the guidelines on referral of individuals with ocular hypertension need to be reconsidered.

Calcification of a Rayner Centerflex 570H hydrophilic acrylic intraocular lens following vitrectomy for retinal detachment: a clinicopathologic report.

PURPOSE: The case of a 71-year-old man who complained of progressive, unilateral visual blurring following vitrectomy for retinal detachment due to opacification of his Rayner Centerflex 570H intraocular lens (IOL) implant is reported. Intraocular lens exchange was carried out and the explanted lens analyzed. The same model lens in his fellow eye has remained clear. METHOD: Clinicopathologic case report. RESULTS: Scanning electron microscopy and energy-dispersive x-ray analysis confirmed the presence of hydroxyapatite deposits within the anterior surface of the IOL. CONCLUSIONS: To our knowledge, this is the first clinicopathologic case report of calcification of this model IOL in an adult patient. The sequence of events, unilaterality, and pathologic findings suggest secondary calcification, which could have been related to severe postoperative inflammation and associated blood-aqueous barrier breakdown.