The Influence of Type 1 Diabetes Mellitus on Amplitude of Accommodation

Sırakaya, Ender; Küçük, Bekir; Sirakaya, Hatice Aslan

doi:10.1080/02713683.2020.1726406

Cited by 8 publications

(21 citation statements)

References 26 publications

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“…The crystalline lens has been shown to be thicker, more convex and less elastic in young pre-presbyopic diabetic subjects compared with age-matched controls. 11,16 It should be noted that most previous studies only examined the AA in young diabetics and other aspects of accommodative function including accommodative facility (AF) and accommodative response (AR) were not investigated. On the other hand, due to the physiological link between accommodation and convergence, 18 accommodative dysfunction in diabetic subjects can theoretically affect binocular vision performance.…”

Section: Introductionmentioning

confidence: 99%

Vision‐related symptoms, accommodative and binocular vision performance in young diabetics vs. normal controls

Nabovati

Khabazkhoob

Fayaz

et al. 2022

Ophthalmic Physiologic Optic

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Purpose To compare accommodative and binocular vision performance between young diabetic subjects and normal controls, and to investigate the correlation of accommodative/binocular indices with the severity of diabetes. Methods Thirty young subjects with diabetes mellitus (DM) and 30 age‐matched normal controls were recruited in this hospital‐based cross‐sectional study. DM was diagnosed by a haemoglobin A1c (HbA1c) higher than 6.5%. The status of vision‐related symptoms was examined by the convergence insufficiency symptoms survey (CISS). All participants underwent a complete optometric examination including visual acuity measurement, objective and subjective refraction, accommodative and binocular vision assessments. Results All study participants were between 18 and 40 years of age. There were no statistically significant differences in best‐corrected visual acuity (BCVA), sphere, cylinder and spherical equivalent refraction (SE) between the diabetes and control groups. The median near point of convergence (NPC) was significantly more remote in diabetics compared with the control group. Mean accommodative amplitude (AA) and vergence facility (VF) and the median monocular accommodative facility (AF) were significantly lower in diabetic subjects compared with normal controls. In addition, the median accommodative lag in the diabetic group was significantly higher than the control group. A significantly higher percentage of the diabetic group were symptomatic (26.6%), compared with the controls (6.6%). The NPC and accommodative lag showed a significant positive correlation with the HbA1c level, while VF, AA and AF exhibited a significant negative correlation with HbA1c. Conclusion Aspects of accommodative and binocular vision performance are strongly affected by DM. There is also a significant correlation between accommodative and binocular disorders with the severity of DM. A significant percentage of young subjects with DM have severe vision‐related symptoms.

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Section: Introductionmentioning

confidence: 99%

Vision‐related symptoms, accommodative and binocular vision performance in young diabetics vs. normal controls

Nabovati

Khabazkhoob

Fayaz

et al. 2022

Ophthalmic Physiologic Optic

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“…Sırakaya et al involved younger (mean age: 25.0 ± 3.3 years) type 1 diabetic patients in their study, they used minus lens method for measuring of accommodation amplitude. They also found accommodation amplitude significantly lower among patients than healthy individuals and suggested that the former might experience presbyopia earlier in life than the general population [7]. We observed that there isn't a significant change in accommodation of diabetic patients objectively by PowerRef 3.…”

Section: Discussionmentioning

confidence: 50%

“…Accommodation reduces as a normal part of aging and presbyopia occurs approximately at the age of 40 years. Decreased accommodation in diabetic patients in pre-presbyopic ages has been reported in several subjective studies [3,4,6,7]. Fisher et al observed that the lens capsule and lens substance lost elasticity in diabetic patients, which consequently impaired their accommodative function [8].…”

Section: Discussionmentioning

confidence: 90%

“…Diabetes mellitus can also cause a variety of ocular pathologies that affect nearly all tissues in the eye, especially if it's uncontrolled [5]. Decreased accommodation in patients with Diabetes reported several studies before [3,4,6,7]. The Plusoptix PowerRef 3 (http://www./plusoptix.com) measures gaze position, pupil size and refractive state binocularly at a sampling rate of 50 Hz over a wide dioptric range (+5 D to −7 D).…”

Section: Journal Of Bionic Memorymentioning

confidence: 99%

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Evaluation of near accommodation in type 1 diabetic patients

Yüzbaşioğlu¹,

Yülek²,

Uğurlu³

et al. 2022

jbioni

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To evaluate accommodation in type 1 diabetic patients by PowerRef3 in our study. The PowerRef 3 can be used in studying the near triad of accommodation, vergence and pupil responses in healthy and clinical populations. Method: The accommodation of 14 patients (mean age: 33.14 ± 10.27) with type 1 diabetes and 16 control subjects (mean age: 35.81 ± 5.88) were measured by PowerRef3 at 30 cm with a standard accommodation target. The metabolic status of the diabetic patients and accommodation were compared with those of control subjects. Results: The mean accommodation, spherical equivalents and age was not significantly different between diabetic and control subjects. The mean duration of diabetes was 13 ± 5.7 years (min: 7, max: 27). The mean accommodation was not significantly correlated with duration of diabetes and glycated hemoglobin levels, but it was significantly correlated with the spherical equivalents (p<0.05) and weakly correlated other metabolic parameters (fasting plasma glucose, cholesterol, low density lipoprotein, high density lipoprotein and triglyceride levels). Conclusion:The accommodation of type 1 diabetes patients at pre-presbyopic ages without diabetic retinopathy was similar to control subjects with PowerRef 3 measurements. This may reflect that good diabetes control, which will prevent retinopathy, may prevent the decrease in accommodation in type 1 diabetes patients.

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“…The incidence of type 1 diabetes mellitus (T1DM) is increasing globally (1). T1DM mostly occurs in adolescents, with regards to the relatively low incidence and relatively young patients, the T1DM do not get enough attention (2).…”

Section: Introductionmentioning

confidence: 99%

The thyroid hormone levels and glucose and lipid metabolism in children with type 1 diabetes: a correlation analysis

Yuan¹,

Sun²,

Liu³

et al. 2021

Transl Pediatr

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Background: Type 1 diabetes mellitus (T1DM) is common in clinical setting, the relationship between thyroid hormone levels and glucose and lipid metabolism in patients with T1DM remains unclear. We attempted to analyze the correlation of thyroid hormone levels and blood glucose and lipid metabolism in children with normal thyroid function.Methods: Children with T1DM were selected, and 85 healthy children who underwent physical examinations in our hospital as control group. The characteristics and laboratory testing results were compared, the correlation of thyroid hormone levels with blood glucose and blood lipids was analyzed by Pearson correlation analysis. Results: A total of 167 participants were included. the low-density lipoprotein-cholesterol (LDL-C), triglyceride (TG), fasting blood glucose (FBG), and glycated hemoglobin (HbAlc) in T1DM patients were higher than those in healthy controls, while the high-density lipoprotein-cholesterol (HDL-C), thyroid stimulating hormone (TSH) and free triiodothyronine (FT3) in T1DM patients were lower than that of healthy children (all P<0.05). TSH was positively correlated with LDL-C (r=0.169, P=0.032), TC (r=0.182, P=0.017) and TG (r=0.197, P=0.008), negatively correlated with FBG (r=−0.196, P=0.023) and HbAlc (r=−0.328, P=0.002). FT3 was negatively correlated with TG (r=−0.182, P=0.011), FBG (r=−0.184, P=0.009)and HbAlc (r=−0.223, P=0.005). TG in the high TSH group and the middle TSH group is higher than that of low TSH group. However, FBG and HbAlc were lower than those in the low TSH group (all P<0.05).Compared with the low FT3 group, the TG, FBG and HbAlc decreased in the high and middle FT3 group (all P<0.05). Conclusions:The serum TSH are closely associated with FT3 and glycolipid metabolism in children with T1DM, which may be the useful indicators to assess the severity of T1DM in clinical settings to provide insights into the management of T1DM.

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The Influence of Type 1 Diabetes Mellitus on Amplitude of Accommodation

Cited by 8 publications

References 26 publications

Vision‐related symptoms, accommodative and binocular vision performance in young diabetics vs. normal controls

Vision‐related symptoms, accommodative and binocular vision performance in young diabetics vs. normal controls

Evaluation of near accommodation in type 1 diabetic patients

The thyroid hormone levels and glucose and lipid metabolism in children with type 1 diabetes: a correlation analysis

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