What are refractive errors?
The cornea and lens bend or refract light rays so they can be focused on the retina, the nerve layer that lines the back of the eye. The retina receives the picture formed by these light rays and sends the image to the brain through the optic nerve. A refractive error means that the shape of the eye does not allow the light to be properly refracted, making images blurry.
Refractive errors include:
- Myopia (near-sightedness)
Myopia (near-sightedness) occurs when light rays are focused in front of the retina instead of directly on the retina. Nearsighted people have difficulty seeing objects at a distance, such as highway signs, but usually can see up-close for tasks such as reading or sewing.
- Hyperopia (farsightedness)
Hyperopia or farsightedness occurs when light rays are not bent enough to focus on the retina. People with hyperopia can sometimes see distant objects very well but may have difficulty seeing close objects.
Regular astigmatism occurs when light rays are focused at more than one point on the retina. Astigmatism is the most common vision problem. It occurs when the cornea surface is not ideally rounded but is curved more along one axis than the other — that is when the eye is shaped more like the side of a football than a soccer ball. Light entering the eye does not focus symmetrically on the retina. The result is astigmatism, which blurs both near and distance vision. This refractive error may occur in patients who are either myopic (nearsighted) or hyperopic (farsighted). There are various types of astigmatism which include regular, mixed and irregular astigmatism.
With increasing age, the lens inside of the eyes loses the ability to focus on nearby objects. The problem usually manifests itself around age 40 and can be corrected with bifocals or reading glasses. This is a normal ageing process.
Monovision is a method of correcting presbyopia and essentially leaves one eye for near and one eye for distance. This is achieved either through contact lenses or refractive surgery. Contact lenses or glasses may be required for best distance or night vision activities, including driving. This option is not suitable for everyone and a trial period of monovision using contact lenses may help decide if it is right for you.
How are refractive errors treated?
Eye specialists correct or treat refractive errors with glasses, contact lenses or surgery. Refractive surgery is done to correct the refractive error using different options laser eye surgery options, such as:
- Photorefractive keratectomy or PRK
- Phakic intraocular lenses
- Multifocal intraocular lenses
Your eye specialist will recommend the right eye surgery for you.
Pleased to confirm that I had both my eyes operated for cataracts. This was the best decision ever going for this procedure.
Ons is reeds jare pasiente by dr Beatty en ons het intussen afgetree en verhuis. Steeds ry ons vir ons besoeke daarheen en sien elke keer uit om daar te kuier!
I wanted you to know that I got my eyes checked and it came out as 20/20! You did a great job. The guy who checked my eyes said whoever did it really knew what they were doing :) Anyway, thanks for doing such a good job! Glad you were able to open up just in time before we left for the states.
I will definitely recommend dr Beatty. I am so happy with my Lasik.
Ek is regtig baie dankbaar en opgewonde om so mooi duidelik te kan sien. 13/11/2020
Thank you for always helping me on such short notice. James is the best!
Julle is 'n great span met die beste dokter.
Thank you ladies for always being so helpful and friendly:)
Doctor Beatty is hands-down one of the best Ophthalmologist I have ever seen in my 35 years of life!
Such a privilege to have doctor Beatty as my Ophthalmologist.
Ek was besoeker by julle kamers tydens my vakansie in die Kaap. Ek is julle is so dankbaar vir die vinnige hulp en goeie diens.
Lovely ladies and best doctor. Love you all and looking forwards seeing you next year for my follow-up.
Altyd so lekker om by julle te gaan kuier en almal is so vriendelik en behulpsaam.
I am so happy with the results after I had Lasik done. Best money spent ever.
Thank you doctor Beatty and staff for your good service and for you all being so friendly:)
Best decision and results after I had my Lasik done by doctor Beatty!
Always looking forward seeing doctor Beatty for my check-up once a year.
I could not believe my eyes!
Very impressed with Dr Beatty, the hospital and aftercare was excellent.
Julle dames lag altyd, so lekker om hierheen te kom! Puik diens.
Thank you for professional service and excellent aftercare.
Julle diens is uitstekend en almal is altyd baie vriendelik.
I have been a patient of Dr Beatty since 25 April 2013. I then followed him after moving practice to the new building in Paardevlei and I have not looked back.
At Somerset Eye Clinic, vision becomes a reality. Though advanced imaging and state-of-the-art technology, Dr Beatty diagnosed my eye problem timeously, thereby arrested the disease in it's earliest stages. Dr Beatty also practices the most sophisticated surgical techniques for the treatment of patients and remains on par with international research and developments in the field of ophthalmology.
The dedicated team of ophthalmic assistants and administrators are handpicked to optimise practice management, functioning and patient care. Visiting Dr Beatty's practice feels like dealing with trusted, loyal family. Dr Beatty's gentle, patient, kind and caring manner, fosters patient loyalty, respect and long-term engagement.
I am a strong advocate for his practice and a patient for life.
I was lucky enough to find Dr Beatty via a referral and I would refer him to anyone interested in Lasik / PRK eye surgery. The entire experience, which can be scary, was really pleasant with his and his staffs professional advise and care before, during and after the surgery. I am very thankful to be able to look at the world and go about my day to day activities without the hassle of glasses or contact lenses.
Who it may concern
About nine months ago Dr Beatty removed cataracts from both my eyes.
The procedures were successful and I do recommend this particular specialist. He is always professional and it was a relaxed experience.
The admin personnel are always friendly and professional.