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Eye SurgeryEyeglasses have been a traditional solution for correcting vision problems for many centuries. When contact lenses arrived on the scene, they offered a new practical solution for restoring vision. Now an increasing number of eye surgery options have displaced glasses or contacts as the only solutions for healthy vision.

Eye Surgery Evolution

Advanced technology has made it possible to reshape eyes and restore vision to healthy levels for many people from all walks of life. Surgical techniques and tools have rapidly evolved over the past two decades to create procedures that are both safe and helpful.

Corrective surgeries for eyes now include everything from using lasers to reshape the cornea surface to inserting artificial lenses. These procedures correct how light entering the eye is processed – leading to much sharper vision in patients.

The state of the cornea is a determining factor in these surgeries. Thinner corneas with a high degree of myopia, for example, usually require a more invasive surgery to reshape the eye surface enough to improve vision.

Types of Eye Surgeries

Laser correction surgeries offer a snapshot of evolution in eye surgeries. Photorefractive Keratectomy (PRK) became the first successful surgery to change the shape of the cornea through removing tissue. The FDA approved PRK in 1995 and it is still widely used early in the 21st Century. With PRK, it only takes a few days for vision improvements to be realized.

LASIK followed on the heels of PRK. It involves cutting a thin flap in the outer covering of the eye to reshape the cornea. Unlike PRK, it only takes a few hours to gain sharper vision with LASIK surgery. There is some risk of suffering dry eye and other complications such as halos around bright lights until the flap fully heals. LASIK can be done with the aid of a mechanical cutting tool, using all lasers or incorporating wavefront technology that measures how light hits the eye.

Nearsighted patients are not alone in benefiting from surgeries. Farsightedness can be corrected through Conductive Keratoplasty (CK). It uses a small probe and low heat radio waves to create spots around the cornea periphery. CK steepens the cornea to give patients better near vision.

Some eye surgeries require implanting new artificial lenses to produce vision improvements. Implantable lenses similar to contact lenses can correct more severe levels of nearsightedness. These artificial lenses go permanently over the natural lens on the eye. Refractive Lens Exchange (RLE) takes it a step further and replaces the natural lens with an artificial lens of a different shape. RLE is done to correct extreme farsightedness.

Eye Surgery Considerations

Our eyes change as we age, so some corrective surgeries are not a good option for everyone. People under 18, for example, are not good candidates for laser eye surgeries because their eyes change rapidly as their bodies are growing.

Health also factors into eye surgeries. If you have diabetes or other medical conditions that impact eyesight, certain eye surgeries may pose serious risks.

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Dr. Crosby Wallace  received his Bachelor of Science in Medical Technology from The University of Texas, Masters Degree in Public Health from The University Of Texas and also received his Doctor of Optometry degree from the University of Houston College of Optometry. Dr Wallace is licensed as an Optometrist / Glaucoma Specialist by the Texas Board Of Optometry. 

Dr Wallace was an Optometry intern the United States Navy where he received a letter of Commendation for outstanding performance of duty from the Commanding Officer, Naval Medical Clinic. 

"You consistently demonstrated outstanding clinical skills and knowledge as assisted in the care and treatment of military beneficiaries. Your devotion to your profession and your patients was demonstrated through numerous patient expressions of satisfaction with the thoroughness and quality of care you rendered. It gives me great pleasure to extend my sincere appreciation for a job "well done" and wish you continued success in all your future endeavors". - R L Finke, Captain, Medical Service Corps, United States Navy

Dr. Tihomira Petkova is a therapeutic optometrist and optometric glaucoma specialist practicing in Humble, Texas

Dr.PetkovaDr. Tihomira Petkova received her Doctor of Optometry and Doctor of Philosophy degrees from the University of Houston College of Optometry in 2012. She gained extensive experience in the diagnoses and treatment of ocular diseases during her externships and practice at the University Eye Institute, Good Neighbor Clinic and La Nueva Casa de Amigos Health Center and practicing at TSO. Dr. Petkova is certified by the National Board of Examiners in Optometry and the Texas state Optometry Board. As a therapeutic optometrist she is actively involved with the management of dry eyes, ocular infections and allergies. She is also an optometric glaucoma specialist who has gained most of her clinical experience in Houston while diagnosing and managing diabetic retinopathy, glaucoma, and age related macular degeneration. She also co- manages LASIK and Cataract surgery patients with local ophthalmologists.
As a scientist Dr. Petkova seeks to understand the molecular mechanisms involved in retinal development and optic nerve regeneration and has completed post-doctoral fellowships at Weill Cornell Medical College and Baylor Medical College. She has presented her work at multiple international research conferences and is a published author of research articles and a book chapter. For her contributions to vision research Dr. Petkova has received multiple rewards amongst which most notably are the American Optometric Foundation Ezel Fellowship and Fight for Sight Foundation Fellowship.
Dr. Petkova’s primary focus in patient care is is always clear communication with each patient and providing comprehensive eye care to patients of all ages.
Dr. Petkova lives in Houston with her husband and daughter she is an avid cyclist, an amateur artesian bread baker and a supporter of the Houston Grand Opera and the Houston Symphony. She is fluent in Bulgarian, proficient in Russian and has knowledge of medical Spanish

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