Isaac Porter, MD explains the tests and evaluation needed to determine if a patient is a candidate for LASIK or PRK. In a free evaluation, the stability of the eyeglass or contact lens prescription is checked to ensure that it is not currently changing. Specialized mapping of the cornea shows detail of the curvature of the eye and can help identify problems like keratoconus that do not qualify for LASIK. Wavefront testing passes light in and out of the eye to measure every distortion in the vision. The thickness of the cornea is measured and an eye exam is performed to check the overall health of the eye. Using this information, it can be determined if a patient qualifies for laser vision correction.
Laser vision correction can reduce your dependence on glasses and contact lenses. Isaac Porter, MD, explains how LASIK and PRK work to correct vision by reshaping the cornea. Nearsightedness (myopia), farsightedness (hyperopia), and astigmatism can be corrected with the excimer laser in LASIK.
Lens implants from cataract surgery can give a full range of vision from up close to far away. Isaac Porter, MD explains how our eyes focus and new technology that can reduce the need to wear glasses for distance and near vision. Age related focus dysfunction (presbyopia) affects everyone beginning around age 45 and causes difficulty reading. This may be corrected with reading glasses or bifocals, but now when patients need to have cataract surgery, they have lens options that can reduce this need for reading correction.
Isaac Porter, MD from Lowry Porter Ophthalmology explains that although cataracts cannot return, a patient's lens capsule can become cloudy after surgery (posterior capsular opacification). This can be cleared with a laser procedure called a yag capsulotomy.
Ophthalmologist Isaac W. Porter, MD discusses cataracts and cataract surgery in the premier of 'A State of Sight'.