The cornea is a part of the eye that helps focus light to create
an image on the retina. It works in much the same way that the lens of a camera
focuses light to create an image on film. The bending and focusing of light is
also known as refraction. Usually the shape of the cornea and the eye are not
perfect and the image on the retina is out-of-focus (blurred) or distorted.
These imperfections in the focusing power of the eye are called refractive
errors.
There are three primary types of refractive errors: myopia,
hyperopia and astigmatism. Persons with myopia, or nearsightedness, have
more difficulty seeing distant objects as clearly as near objects. Persons
with hyperopia, or farsightedness, have more difficulty seeing near
objects as clearly as distant objects. Astigmatism
is a distortion of the image on the retina caused by irregularities in the
cornea or lens of the eye. Combinations of myopia and astigmatism or hyperopia
and astigmatism are common.
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Myopic or nearsighted eye.
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Hyperopic or farsighted eye.
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Astigmatism.
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Glasses or contact lenses are designed to compensate for the
eye's imperfections. There are also several surgical procedures to correct
refractive errors.
Surgical procedures aimed at improving the focusing power of the
eye are called refractive surgery.
Radial Keratotomy or RK and Photorefractive Keratectomy or PRK
are other refractive surgeries used to reshape the cornea. In RK, a very sharp
knife is used to cut slits in the cornea changing its shape. PRK was the first
surgical procedure developed to reshape the cornea, by sculpting, using a laser.
Later, LASIK was developed. The same type of laser is used for LASIK and PRK.
Often the exact same laser is used for the two types of surgery. The major
difference between the two surgeries is the way that the stroma, the middle
layer of the cornea, is exposed before it is vaporized with the laser. In PRK,
the top layer of the cornea, called the epithelium, is scraped away to expose
the stromal layer underneath. In LASIK, a flap is cut in the stromal layer and
the flap is folded back. Another type of refractive surgery is thermokeratoplasty in which
heat is used to reshape the cornea. The source of the heat can be a laser, but
it is a different kind of laser than is used for LASIK and PRK. Other refractive
devices include corneal ring segments that are inserted into the stroma and
special contact lenses that temporarily reshape the cornea (orthokeratology).
There are several ways of reaching the ophthalmologists of EYE REPUBLIC Ophthalmology Clinic:
Hover note: Please place your mouse cursor over the red box
to click on the web and email links. For websites, a new browser
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ONLINE ACCESS
WEBSITES.
http://www.EyeRepublic.com - EYE REPUBLIC
Ophthalmology Clinic
http://www.LASIK.com.ph - Refractive
Surgery Resource
http://www.Cataract.com.ph - Cataract Surgery Resource
http://www.Eye.com.ph - Eye
Information Online
http://www.EyeDoc4Kids.com.ph - Eye Information for Kids
http://www.Retina.com.ph - Retina
Surgery Resource
http://www.Glaucoma.com.ph - Glaucoma
Online
http://www.Uveitis.com.ph - Uveitis Online
EMAIL. After writing down your comments,
suggestions, problems and/or questions, kindly tell us how
to get in touch with you by providing your name, email,
home/office numbers, and mobile phone.
General inquiries - help@EyeRepublic.com.ph
Refractive Surgery Service - refractive.surgery@EyeRepublic.com.ph
Glaucoma Service - glaucoma@EyeRepublic.com.ph
Cataract Service - cataract@EyeRepublic.com.ph
Doctors - eyemd@EyeRepublic.com.ph
Administrative - president@EyeRepublic.com.ph
Website - webmaster@EyeRepublic.com.ph
Newsletter -
newsletter@EyeRepublic.com.ph (receive
news and updates, discounts and promotions)
BLOG. Send us your comments.
EYE REPUBLIC
Ophthalmology Atlas
CLINIC INFORMATION
Mobile E-Yellow Pages. Via
SMS, text LUK4 EYEREPUBLIC
(send to 2851 for Globe and Sun Cellular, and 2951 for Smart). |
EYE REPUBLIC Ophthalmology Clinic
3/F Don Santiago Building Units 309-310
1344 Taft Avenue, Ermita
Manila, 1000 Philippines
Direct and Fax: (632) 536-2398
Trunk Line: (632) 525-4673
Mobile: (63917) 899-2020
Map and directions
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Asian Hospital
and Medical Center
5/F Medical Office
Building (MOB) Suite 509
2205 Civic Drive,
Filinvest, Alabang
Muntinlupa City,
1781 Philippines
Direct:
(632) 771-9253
Direct and Fax:
(632) 771-9254
Mobile: (63917) 795-2020
Map and Directions
|
Medical City
6/F Medical Arts Tower Inc (MATI) Suite 602
MERALCO Compound, Ortigas Avenue
Pasig City, 1604, Philippines
Direct and Fax: (632) 632-7846
Mobile: (63917) 537-2020
Map and directions
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St. Luke's
Medical Center
6/F
Cathedral Heights Building Complex (CHBC)
North Tower Suite 614
279 E. Rodriguez
Sr. Boulevard
Quezon City, 1102
Philippines
Direct and Fax:
(632) 407-3883
Mobile: (63917) 855-2020
Map and directions
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CLINIC HOURS
First-Come, First-Served
Monday to Saturday 9:00 AM to 6:00 PM
All clinics are closed on Sundays and Holidays
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Note: Some of the information here was taken and abridged from
the web site of the FDA.
REFRACTIVE SURGERY information compiled by
Dr.
Manolette Roque [ Resume
| Email
]
and initially uploaded on May 1, 2004.
By visiting this website, you agree to
LASIK.com.ph's TERMS OF USE.
Last modified:
April 19, 2009.
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