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Life style & ocular health

Occupational & environmental optometry course

Ghaydaa Shaqour

on 3 March 2014

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Transcript of Life style & ocular health

Systemic diseases
Environmental pollution
Increase in
goblet-cell hyperplasia
( mucosal surfaces response)in conjanctiva when chronically exposed to air pollution

Tear film abnormalities ,instability and subclinical changes of the ocular surface
Genetic mutation
The most commonly described ocular findings in
Down syndrome
are the following:
Upward slanting of the palpebral fissure, epiblepharon, refractive error, squent,
nystagmus, nasolacrimal duct bstruction, blepharoconjunctivitis, retinal abnormalities, cataract, glaucoma, iris Brushfield spots (aggregation of connective tissue), and keratoconus
Enhance free- oxygen radicals (the chemical products in the body that can damage cells) and lead to
nuclear cataract

Squamous cells metaplasia
in the conjunctiva surface epithelial layer by inflammation associated with
irritative and toxic agents and the absence of circulating factors required
for epithelial differentiatiotion

Chronic instability in the tear film layer increases ocular irritation , and this may be responsible for the
of the conjunctival epithelium
Life style & ocular health
An-najah National University
Optometry Collage
Environmental and occupational optometry course
Prepared by: Ghayda'a Shaqour
Supervisor: Ms. Dianeh Rabi

Cold Weather Causes Dry Eye? (2011). REVIEW OF OPTOMETRY.

Ahmet Satici, Muharrem Biliren, Ilyas Ozardali, Huseyin Vural, Adil Kilic , & Mustafa Guzey. (2003). The effects of chronic smoking on the ocular surface and tear characteristics: a clinical, histological and biochemical study. ACTA OPHTHALMOLOGICA SCANDINAVICA JORNAL, 583-587.

Branka Stirn Kranjc. (2012). Ocular Abnormalities and Systemic Disease in Down Syndrome. Informa Healthcare Journal, 74–77.

Hans O. Richtera, Christina Zetterlundb, & Lars-Olov Lundqvist. (2010). Eye-neck interactions triggered by visually deficient computer work. Work Journal, 67–78

Jennifer S. L. Tan, Jie Jin Wang, Robert G. Cumming, Elena Rochtchina, Paul Mitchell, & Christine Younan. (2008). Smoking and the Long-Term Incidence of Cataract: The Blue Mountains Eye Study. Ophthalmic Epidemiology Journal, 155–161.

Mustafa Serinken, I. T. (2013). Causes and characteristics of work related eye injuries in western Turkey. Indian Journal of Ophthalmology , 497-501.

Priscila Novaes, Paulo Hilário Saldiva, Newton Kara-José, Mariângela Macchione, Monique Matsuda, Lourdes Racca, et al. (2007). Ambient Levels of Air Pollution Induce Goblet-Cell Hyperplasia in Human Conjunctival Epithelium. Environmental Health Perspectives Jornal, 1753-1756.

S. A., & M. J. (2011). The short-term influence of exercise on axial length and intraocular pressure. Eye Journal, 767-774.

Sze-Yee Lee, Andrea Petznick, & Louis Tong. (2012). Associations of systemic diseases, smoking and contact lens wear with severity of dry eye. Ophthalmic & Physiological Optics Journal, 518–526.

Diabetes mellitus

Affects the corneal nerves which causes a hyposecretory response from the lachrymal gland and couse dryness
Autoimmune disease, in which the lachrymal gland is attacked by lymphocytes and gradually loses its function and then couse dryness
Rheumatoid arthritis
Cold weather lead to meibomian gland dysfuncfion may well cause dry eye disease

Meibomian lipid films solidified & shrank

Left a large portion of the air-water interface uncovered with lipid molecules

Dry eye

Dynamic exercise are associated with reductions in IOP

The magnitude of reduction in IOP has been found to be related to the intensity of exercise.

Reduction in AXL accompanying the reduced IOP following a short period of dynamic exercise

Males between 25 and 34 years of age are under higher risk of exposure to work-related eye injary
Computer use
Working hours per day and age were significant risk factors for reporting an increase in ocular symptoms

Many hours in front of the computer and oculomotor anomalies are often mentioned as factors influencing
eye discomfort

Discrepancies between accommodative and vergence
stimuli from the retinal image have e.g. been attributed
as causing
work-related visual fatigue

(latent squint) is also associated with musculoskeletal pain and discomfort

A deficiency in visual function may result in
headaches and ocular symptoms
Full transcript