The retina can be said to be a very vital part of the eye and also the most complex. Retinal problems increase the complexities in case of refractive surgery. A refractive error along with problems of the retina is possible in which case vision loss increases. In such cases refractive surgeries help in rectifying the problem even if it is only for a short duration. Lasik surgery results in increasing the intraocular pressure for a while which is not suited for most patients with retinal problems. Given below are a few instances of retinal problems and correction options.
Macular Degeneration: The center portion of the Retina is known as macula and its degeneration is known as macular degeneration. Patients suffering from this disorder lose central vision but retain peripheral vision. Lasik increases the pressure in the eye and is not a favorable option.
Myopia leading to Retinal Detachment: The chances of retinal detachment are high in people suffering from myopia. Pressure in the eye pulls the retina which may lead to its detachment. Higher the intensity of the near sightedness, greater is the chance of developing retinal detachment. Refractive surgery is the recommended mode of treatment for severe cases of myopia. Lasik is not a recommended option for such patients as retinal detachment may occur due to the pressure in the eye during Lasik surgery. Chances of retinal detachment is higher is those patients where the risk already exists. Other refractive surgeries such as PRK would be suitable in such instances.
Diabetic Retinopathy: is a condition which affects diabetic patients where the vessels supplying blood to the retina get damaged. Lasik surgeries which involve the use of suction rings may cause more damage to these blood vessels and is best avoided. Refractive surgeries that do not increase the intraocular pressure are a more suited option but for some patients surgery itself is completely ruled out.
Ocular Histoplasmosis: is a condition that develops due to a kind of fungus. Scarring and also inflammation of the retina are the complications. But in many cases this may not affect the Vision to a large extent. Lasik surgery in such cases is not recommended as it can lead to choroidal neovascularization.
Retinal problems can be of various different types and the treatment options also vary. Wherever refractive surgery is an option Lasik is least recommended. The increase in the eye pressure due to Lasik is further damaging to the retina. Therefore, ophthalmologists rarely recommend Lasik surgeries in retinal complications.