Dry eye is a condition in which a person doesn't have enough quality tears to lubricate and nourish the eye. Tears are necessary for maintaining the health of the front surface of the eye and for providing clear vision.
Dry eye is a common and often chronic problem, particularly in older adults.
(Reference from American Optometric Association)
Dry eyes can develop for many reasons, including:
(Reference from American Optometric Association)
How are dry eyes treated?
Tips to reduce symptoms of dry eyes:
Diabetic retinopathy is the damage to the retina caused by diabetes mellitus (DM). Diabetic retinopathy often has no obvious symptoms in the early stage. If not detected early, when symptoms do appear, the condition may have been developed to later stages and vision would be affected seriously. The worse scenario is blindness.
The longer a person has diabetes, the more prone he is to have diabetic retinopathy. About one-third of patients with over 10 years of DM have some degree of retinopathy. With the disease for more than 20 years, the chance of complication increases to two-third. Regular comprehensive eye examinations is vital for early detection and early treatment, hence greatly reduce the serious complication of diabetes.
We strongly advise patients with diabetes mellitus to undergo a comprehensive eye examination every year.
Glaucoma is an eye disease in which the optic nerve is damaged, causing permanent vision loss. Most commonly caused by raised intraocular pressure that lead to visual loss, which over time can progress to blindness. Worldwide, glaucoma is one of the leading cause of blindness.
Risk factors for glaucoma:
Unfortunately, any vision lost as a result of glaucoma usually cannot be restored. This is why regular preventive eye examinations are so important. Low-vision rehabilitation services, which include the use of specialized optical devices and training, may benefit people with severe vision loss from glaucoma.
Most refractive errors such as nearsightedness, farsightedness, astigmatism and presbyopia can be corrected with contact lenses. We will fitting with consideration of your overall vision problems, the health of your eyes, your specific visual needs and lifestyles.
Soft contact lensesare made of soft, flexible plastics that allow oxygen to pass through to the cornea. Newer soft lens materials include silicone-hydrogels to provide more oxygen to your eye while you wear your lenses.
Classified by Disposable (Replacement) Schedule
Rigid gas permeable contact lenses (RGPs) are more durable and resistant to deposit buildup, and generally give a clearer, crisper vision.They are easier to handle and less likely to tear. However, they are not as comfortable initially as soft contacts and it may take a few weeks to get used to wearing RGPs, compared to several days for soft contacts.
Advantages of RGP
There are many brands and styles of soft lenses for astigmatism, including:
The preferred method of correction of High Myopia is contact lenses. Contact lenses can restore vision with complete peripheral vision and little minification error. (Minification error is when looking through a high minus prescription all images are smaller) Contact lenses of the same correction will allow images to be much larger than a high prescription eyeglass would be, reducing minification error.
Presbyopia, a word that meant “the elderly eye” in Greek, is a symptom of aging eyes. After early to mid-40s, the lens of your eye becomes increasingly rigid and inflexible: it can no longer adjust its shape as easily to allow you to focus on both near and distant objects. Contact lenses options for presbyopia:
Color deficiency could be significantly enhanced the color perception by a monocular contact lens. A specialty contact lenses which tinted in deep red is worn in the nondominant eye and intensifies the color of red and green objects.
This lens does not cure the vision problem of color blindness, it only aids in the perception of colors.
There is no one design that is best for every type or stage of keratoconus. The “best lens” is the one that fits your eye, corrects your vision and is comfortable to wear. Here is a brief outline of the types of lenses available for keratoconus:
Cosmetic contact lenses are actually medical devices oversees by the U.S. Food and Drug Administration(FDA). Just like corrective contact lenses you should never buy contact lenses from a street vendor or a beauty supply store, and you should always have a prescription.
Wearing any kind of contact lenses, including Cosmetic contact lenses, can cause serious damage to your eyes if the lenses are obtained without a prescription or not used correctly. These risks include:
" Buying contact lenses without a prescription is dangerous!"
What is Color Blindness, or Color Vision Deficiency?
This is refers to the inability of a person to correctly distinguish certain colors.
Complete color blindness, to view the world in only black and white, is rare.
Most of them are color deficiency, which has problems distinguishing between the colors red and green, mistaking them for the same color. A less common type of color deficiency involves the colors blue and yellow.
Color blindness is usually hereditary(you are born with it). More males are affected by the disorder than females.
Occasionally, certain eye diseases cause color blindness, referred to as "Acquired Color Deficiency."