Guide to Eye Diseases
- Hyperopia causes and treatments
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Hyperopia is an eye problem that is opposite to myopia. People with hyperopia can see distance objects clearly but have difficulty in seeing near objects. Hyperopic people may get headache and eye strain if they spend much time on close work. Without proper correction eyeglasses or contact lenses, they always squint and feel fatigue while seeing near objects.
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- High intraocular pressure and glaucoma
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Glaucoma patients have an imbalance between the production and drainage of internal fluids in the eye. These internal fluids are essential to maintain a normal intraocular pressure (IOP) so that the eye can stay globe-like shape.
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- Forms of eye herpes and treatments
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It is estimated that there are 50,000 new and recurring cases of eye herpes in the US every year, which are caused by the type 1 herpes simplex virus. Active herpes virus in the eye can be contagious through close contact, bringing inflammation and scarring of the cornea.
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- Reasons and treatments for macular holes
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Both macular holes and macular degeneration happen more frequently to people above 60. However, they are not the same. Macular holes occur on the macula, which is situated in the center of retina and responsible for clear, color vision. The macula has a sharp point that is critical for some activities such as driving and recognizing faces.
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- Higher-order aberration diagnosis
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It is less known that nearsightedness, farsightedness and astigmatism all belong to lower-order aberrations. And there are also higher-order aberrations such as coma, spherical aberration and trefoil. Higher-order aberrations may cause symptoms such as poor night vision, glare, halos, blurring, starburst patterns, double vision and loss of visual contrast. In most cases, slight higher-order aberrations are common and safe.
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- Various types of conjunctivitis
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There are various types of conjunctivitis, all of which involve inflammation of the conjunctiva on the sclera.
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- Vitrectomy and membranectomy
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In most cases, a surgery is particularly for one certain eye disease. Vitreoretinal eye surgery (vitrectomy) is an exception that it can restore, preserve and enhance vision for many eye conditions such as certain types of age-related macular degeneration, diabetic retinopathy, diabetic vitreous hemorrhage, macular hole, retina detachment, epiretinal membrane, CMV retinitis, proliferative vitreoretinopathy, endophthalmitis, intraocular foreign body removal etc…
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- Eye drops and medications for glaucoma
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In most cases, glaucoma eye drops are enough to control IOP and prevent eye damage. Glaucoma surgeries are always expensive and involve certain complications. For good candidates, the doctor may prescribe more than one type of drops to get best effects. These eye drops can bring down the high IOP.
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- Ocular hypertension causes and treatment
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People with ocular hypertension have higher intraocular pressure (elevated IOP) than normal levels. Ocular hypertension can only be detected by your ECP using instruments, since it has no outward signs and symptoms. In most cases, the patients themselves can not realize this ocular problem.
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- Eye color determination and changes
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A child’s eye color is always inherited from its parents, even if the influences from each parent may not even. Eye colors include black, gray, green or other combinations.
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