Currently , with significant technological advancement and continuing research Refractive Surgery has motivated multiple publications and coition worldwide .
Due to these remarkable technological rise , people now have another choice to cover refractive errors surgically .
Surgical treatments ofmyopia , hyperopia , andastigmatismhave accomplished dear results , allowing the patient to forget apart the use of glass orcontact lens .
Can a Person With Glaucoma Have Lasik Surgery?
There are two techniques that are especially utile in vitrine of moderate or low refractive errors namely keratorefractive with excimer laser , especially LASIK and PRK .
On the other hired hand , in compositor’s case of individual with high deflective mistake or individual with below normal thickness of the cornea , for optical maser discourse the manipulation of intraocular technique is dilate . It is worth mentioning that one of these techniques is the phakic intraocular electron lens implantation , in which the patient role ’s natural crystalline is preserve , and this implant is used until around 50 years of age .
Only in patient role who are 50 or older , it is indicated the use of pseudophakic intraocular lenses , which take the place of the crystalline ( this is a part of the eye , located behind the pupil , which consists of a transparent body in the pattern of a biconvex crystalline lens whose routine is to make the light rays converge so that they form trope on the retina ) . This has been used routinely in cataract surgery , and it offers the possibility in some cases to objurgate farsightedness which is an ophthalmological circumstance in which individual has trouble seeing object send at a fairish space . It is commonly term as farsightedness . It is due to red ink of elasticity of the lens of the optic . It is interpret to develop in the middle to old eld population typically in halfway and old historic period .
Lasik Surgery In Patients With Glaucoma
Despite the fact that the optic disc and the optical arena are presume increasingly important role in the diagnosing of glaucoma , estimating the basis level and the desired degree of intraocular pressure ( IOP ) are still authoritative in the diagnosis of glaucoma .
In add-on , as more patients are opting for refractive procedure to correct myopia , hyperopia , astigmatism and presbyopia , the population that will eventually develop glaucoma orocular hypertensioncontinues to increase . ask this into account , it is important to understand the cause - force relationship between intraocular force per unit area and refractive surgery . Another interesting issue is whether a patient role with glaucoma has a higher risk of patterned advance when undergoing a deflective procedure .
The Central Corneal Thickness And The Intraocular Pressure
The key corneal thickness ( CCT ) has been largely ignored in the thousands of patient diagnose with glaucoma until the find made with studies that show that thinner cornea are a risk element that does not kick in to the progression of glaucoma . Although the role of CCT in IOP degree was recognized by tonometry by applanation , the true grandness of this factor has lately occur into play , chiefly due to the popularity of refractive subprogram that modify corneal pachymetry . As IOP still plays an important role in the diagnosis of glaucoma and its discourse , it is still important to estimate the affected role ’s factual IOP , regardless of the corneal thickness .
It has been shown that IOP can vary between + /- 4 and 5 mm within the normal range of a function of pachymetry ( it is a procedure that allows the measurement of the heaviness of the cornea ) .
It would not be advisable for a patient with moderate to innovative glaucoma to undergo Lasik , not only because of the already known IOP measurement problems that cause an obstruction in the appropriate control condition and discussion of the glaucomatous state , but because of the potential risk of increasing the loss of cheek fibers in glaucoma and increase visual playing area defect due to transient but at the same time mellow levels of IOP during surgery .
Conclusion
An exhaustive mastery evaluation of the glaucoma position must always be carried out before the LASIK routine .
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