"The incidence of myopia among Chinese students based on refraction without cycloplegia
is among the highest of any cultural or ethnic group," the authors write.
Auto-refraction with cycloplegia
in both eyes was performed using a PRK-5000 auto-refractor (Potec Co.
Retinoscopic examination was carried out under appropriate cycloplegia
. A postmydriatic test was done after 3 days if retinoscopy had been done under homatropine and after 2 weeks if it had been done under atropine.
-- Ocucyclo - an anti-cholinergic agent for mydriasis (dilation of pupil) and cycloplegia
(paralysis of ciliary muscle for use in eyesight examination);
for refraction was achieved with cyclopentolate hydrochloride 1% (Bausch & Lomb, Rochester, NY, USA).
Myopia was diagnosed on the basis of eye length measurement by ultrasound imaging using E-Z Scan AB 5500+, and taking into consideration vision defect confirmed by an autorefractometer Topcon KR 9800 after paralysis of accommodation (cycloplegia
) with 1% Tropicamide.
The treatment will include broadspectrum topical antibiotic cover, oral vitamin C at 1 - 2 g/day, topical cycloplegia
and topical steroids.
It is mainly used as a nasal decongestant and for producing mydriasis when cycloplegia
is not required.
Method: Three hudred subjects were tested for the type of refractive error, without cycloplegia
, by automated refractometer.
Treatment focuses on controlling inflammation and preventing secondary bacterial infection, and includes induced cycloplegia
, eyelid closure with a dressing, topical lubricants, antibiotics and steroids/NSAIDS.
The increase in the ACD is due to axial flattening of the lens because of cycloplegia