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Journal : Universa Medicina

Accommodative insufficiency as cause of asthenopia in computer-using students Amalia, Husnun; Suardana, Gusti G.; Artini, Widya
Universa Medicina Vol 29, No 2 (2010)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2010.v29.78-83

Abstract

To date the use of computers is widely distributed throughout the world and the associated ocular complaints are found in 75-90% of the population of computer users. Symptoms frequently reported by computer users were eyestrain, tired eyes, irritation, redness, blurred vision, diplopia, burning of the eyes, and asthenopia (visual fatigue of the eyes). A cross-sectional study was conducted to determine the etiology of asthenopia in computer-using students. A questionnaire consisting of 15 items was used to assess symptoms experienced by the computer users. The ophthalmological examination comprised visual acuity, the Hirschberg test, near point accommodation, amplitude accommodation, near point convergence, the cover test, and the alternate cover test. A total of 99 computer science students, of whom 69.7% had asthenopia, participated in the study. The symptoms that were significantly associated with asthenopia were visual fatigue (p=0.031), heaviness in the eye (p=0.002), blurred vision (p=0.001), and headache at the temples or the back of the head (p=0.000). Refractive asthenopia was found in 95.7% of all asthenopia patients with accommodative insufficiency (AI), constituting the most frequent cause at 50.7%. The duration of computer use per day was not significantly associated with the prevalence of asthenopia (p=0.700). There was a high prevalence of asthenopia among computer science students, mostly caused by refractive asthenopia. Accommodation measurements should be performed more routinely and regularly, maybe as screening, especially in computer users.
Effectiveness of Piper betle leaf infusion as a palpebral skin antiseptic Amalia, Husnun; Sitompul, Ratna; Hutauruk, Johan; Andrianjah, Andrianjah; Mun’im, Abdul
Universa Medicina Vol 28, No 2 (2009)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2009.v28.83-91

Abstract

The goal of an antiseptic is to eliminate or greatly reduce the number of microorganisms in the surgical field at the time of the surgery. The objective of this study was to verify the effectiveness of 20% Piper betle leaf infusion as an antiseptic solution in pre-surgery cataract patients. A clinical trial with partner-matching design was conducted on 31 pairs of eyelids. From each pair of eyelids, one eyelid was asigned to the Piper betle infusion group and the opposite one to the povidone-iodine group. The microorganisms were collected by swab from the patient’s palpebral skin, inoculated on nutrient agar, and incubated at 37oC for 20 hours. The antiseptic effectiveness was measured by counting the microbial colonies before and after administration of the antiseptic solutions. This study demonstrates that the mean colony counts after application of 20% Piper betle leaf infusion showed a significant reduction of 27-100% compared with those before administration (p=0.001). Mean colony counts after 10% povidone-iodine administration showed a significant reduction of 88-100% compared with the mean counts before the solution was applied (p=0.000). The 20% Piper betle infusion has an antiseptic potential. Nevertheless, the 10% povidone-iodine solution has more effective antiseptic capability.