Evaluation of the change in accommodation amplitude in subjects with pseudoexfoliation

Yavaş, Güliz Fatma; Öztürk, Faruk; Küsbeci, Tuncay; İnan, Ümit Übeyt; Kaplan, Ü; Ermiş, Sıtkı Samet

doi:10.1038/eye.2008.143

Cited by 5 publications

(6 citation statements)

References 22 publications

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“…In a study by Yavas et al, there was no change in AL, LT, and ACD in eyes with PXE as compared to normal eyes, [8] the findings of which were similar to the results of the present study, except a significant increase in AL was observed in eyes with PXE.…”

Section: Discussionsupporting

confidence: 81%

Chronomorphological and pressure changes in a sign of aging - pseudoexfoliation of the eye

Patil¹,

Herur²,

Brid³

et al. 2018

Natl J Physiol Pharm Pharmacol

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Background: Pseudoexfoliation (PXE) is an age-related disorder, a risk factor for glaucoma. The aim of this research was to study the chronomorphological and pressure changes in PXE of the eye. Aims and Objectives: To determine and to compare the anterior chamber depth (ACD), lens thickness (LT), axial length (AL), corneal curvature (CC), and intraocular pressure (IOP) in cases with PXE and in controls. Thence, predict the future onset of pseudoexfoliative glaucoma. Material and Methods: This was a case-control study, patients diagnosed to have PXE with the help of slit lamp, above 50 years were taken as cases and age-matched subjects as controls. Measurement of ACD, LT, and AL by A-scan; CC by Keratometer; and IOP by Schiotz tonometer of both cases and controls were performed. Results: Fourteen cases and seventeen controls were studied. A significant difference in mean IOP (P = 0.029) and AL (P = 0.001) between cases and controls was found. Conclusion: IOP and AL were significantly more in PXE as compared to controls. A significant increase in IOP and AL together may predict the future onset of PXE and hence, may help in early diagnosis of glaucoma and which may be missed in cases of PXE.

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Section: Discussionsupporting

confidence: 81%

Chronomorphological and pressure changes in a sign of aging - pseudoexfoliation of the eye

Patil¹,

Herur²,

Brid³

et al. 2018

Natl J Physiol Pharm Pharmacol

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“…minus lens technique and infra-red photorefractor technique respectively) [12] . However, this study noted the difference of amplitude of accommodation for three different room illuminations at 30° downward gaze in compare to Yavas et al's study where they have viewed the difference of amplitude of accommodation at primary gaze [12] . There is no previous study which can contradict or support our study for amplitude of accommodation at three different illumination level and gender.…”

Section: Methodsmentioning

confidence: 99%

“…uses different techniques to measure amplitude of accommodation (i.e. minus lens technique and infra-red photorefractor technique respectively) [12] . However, this study noted the difference of amplitude of accommodation for three different room illuminations at 30° downward gaze in compare to Yavas et al's study where they have viewed the difference of amplitude of accommodation at primary gaze [12] .…”

Section: Methodsmentioning

confidence: 99%

Comparison of Amplitude of Accommodation in Different Room Illumination while Using VDU as a Target

Majumder

Zaimi²

2017

International Journal of Ophthalmic Research

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illumination. Further, to associate AA among genders, age groups, race and refractive error for different levels of room illumination was not significant (p > 0.05). However, amplitude of accommodation between 15-21years and 22-28 years showed significant (p = 0.047) difference for the first room illumination. CONCLUSION:The illumination has no clinically significant effect on amplitude of accommodation. INTRODUCTIONSince 1972, research into the effects of the VDU on the eye expanded [1] . Due to technological advances, millions of people such as office worker and college students are using computers for prolonged hours. However, after prolonged uses of these visual display units, the symptoms reported were eyestrain, tired eyes, headache, blurred vision, irritation, burning sensation, redness, double vision, neck pain, backache which might caused by combination of individual visual problems, poor workplace conditions and improper work habits [2][3] . On top of that, eye related symptoms reported as the most common health problem among VDT users [4][5][6] . To measure amplitude of accommodation is one of the necessary part of an eye examination to find out optimal refractive corrections and to reduce the eye related symptoms when doing near work especially while using visual display unit as a target. In addition, accommodation was proven to have association with the symptom of visual fatigue and asthenopia while doing near work. Abnormality associated with accommodation such as accommodative insufficiency, accommodative infacility and lag of accommodation reported among video display terminal (VDU) users in Nepal [7] . Several other studies have shown that visual tasks using visual display unit (VDU) terminals may induce temporary effects in the Convenience sampling method applied. The data analysis carried out by using one way repeated measure ANOVA, to look into the changes in amplitude of accommodation in different illuminations (23 Lux, 17 Lux and 4 Lux). RESULT: 32 subjects' data analyzed. Amplitude of accommodation measured via minus-lens method. No significant change noted among three levels of room illumination (p > 0.05) with the mean difference of 0.222DS from the first room illumination to third room

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“…In a different study mechanical restriction of pupil has been attributed to the adherent material between pigment epithelium of the iris and anterior lens capsule [ 17 , 18 ]. Accommodation amplitude of the eyes with EXS has also been found to be decreased compared to healthy subjects [ 19 ].…”

Section: Discussionmentioning

confidence: 99%

“…Accommodation amplitude has been shown to be related with a pupil diameter and smaller pupil size leads to an increase in the measured accommodation amplitude [ 21 ]. Yavas et al did not find any correlation between accommodation and pupil diameter in EXS eyes [ 19 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Optical Low Coherence Reflectometry Parameters in Patients with Exfoliation Syndrome

Beyazyıldız

Günaydın

et al. 2015

Journal of Ophthalmology

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Purpose. To evaluate optical low coherence reflectometry (OLCR) parameters in patients with exfoliation syndrome (EXS) undergoing cataract surgery. Methods. Forty-seven eyes of 47 patients with EXS (Group 1), and 55 eyes of 55 healthy subjects (Group 2) were included in the study. Anterior chamber depth (ACD), lens thickness (LT), axial length (AL), central corneal thickness (CCT), horizontal corneal length (HCL), and pupil diameter (PD) parameters were measured by OLCR (Lenstar LS 900, Haag-Streit) and compared between groups. Shapiro-Wilk test and Mann Whitney U tests were used for statistical analyses. Results. The mean ACD, HCL, and PD values were significantly lower in EXS group than in healthy subjects (P = 0.01, P = 0.04, and P < 0.001, resp.). The mean LT was significantly higher in EXS group than in healthy subjects (P = 0.007). There was no significant difference between groups in means of AXL and CCT. Conclusions. According to OLCR measures, eyes with EXS have shallower ACD, smaller PD, thicker LT, shorter HCL, and no significantly different CCT levels.

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Evaluation of the change in accommodation amplitude in subjects with pseudoexfoliation

Cited by 5 publications

References 22 publications

Chronomorphological and pressure changes in a sign of aging - pseudoexfoliation of the eye

Chronomorphological and pressure changes in a sign of aging - pseudoexfoliation of the eye

Comparison of Amplitude of Accommodation in Different Room Illumination while Using VDU as a Target

Evaluation of Optical Low Coherence Reflectometry Parameters in Patients with Exfoliation Syndrome

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