Ultrasound Biomicroscopy Study Of Accommodative State In Smartphone Abusers

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-10-01

Study Completion Date

2018-12-30

Brief Summary

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Detection if there is association between spasm of accommodation and smart phone abuse by ultrasound biomicroscopy on anterior segment of the eye

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Detailed Description

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Conditions

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Spasm of Accommodation

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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smartphone abusers

Auto refractometer without cycloplegia Uncorrected visual acuity (logMAR conversion). Anterior segment slit lamp examination UBM examination settings :Supine decubitus position.5150 Vumax (Sonomed, USA) under standard illumination Parameters that will be measured: corneal thickness, anterior chamber depth, angle to angle distance, cornea-posterior capsular lens distance, lens thickness, pupillary diameter, angle of anterior champer and trabecular-ciliary process distance.

Cycloplegic refraction UBM examination will be repeated after cycloplegia with the same settings. The patients found to have spasm of accommodation will be subjected to ways to relief the spasm of accommodation and repetition of UBM if possible

Ultrasound Biomicroscopy of anterior segment of the eye

Intervention Type DIAGNOSTIC_TEST

5150 Vumax (Sonomed, USA) under standard illumination

smartphone non users

Auto refractometer without cycloplegia Uncorrected visual acuity (logMAR conversion). Anterior segment slit lamp examination UBM examination settings :Supine decubitus position.5150 Vumax (Sonomed, USA) under standard illumination Parameters that will be measured: corneal thickness, anterior chamber depth, angle to angle distance, cornea-posterior capsular lens distance, lens thickness, pupillary diameter, angle of anterior champer and trabecular-ciliary process distance.

Cycloplegic refraction UBM examination will be repeated after cycloplegia with the same settings. The patients found to have spasm of accommodation will be subjected to ways to relief the spasm of accommodation and repetition of UBM if possible

Ultrasound Biomicroscopy of anterior segment of the eye

Intervention Type DIAGNOSTIC_TEST

5150 Vumax (Sonomed, USA) under standard illumination

Interventions

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Ultrasound Biomicroscopy of anterior segment of the eye

5150 Vumax (Sonomed, USA) under standard illumination

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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UBM

Eligibility Criteria

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Inclusion Criteria

1. Age 18 - 35 year.
2. Smart phone excessive use.
3. Emmetrope and myope patients.

Exclusion Criteria

1. Hypermetrope patients.
2. Any form of tropia.
3. Anterior segment diseases either congenital or acquired.
4. Previous intraocular surgeries.
5. Presbyopic subjects.
6. Drugs induced spasm of accommodation: psychiatric drugs, pilocarpine, physostigmine, echothiophate, prostigmine, isoflurophate, muscarine, digitalis overdose and with sulphonamides
7. CNS diseases : Neurosyphilis, Raeder paratrigeminal neuralgia syndrome, cyclic oculomotor palsy, pineal tumor, Chiari malformation, pituitary tumor, metabolic encephalopathy,

Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes