astigmat


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astigmat 

A person who has astigmatism.
References in periodicals archive ?
Cerrahi sonrasi karsilasilan yuksek dereceli, duzensiz astigmat ve oblik aksa kaymalar bu faktorlerin kombinasyonu sonucudur.
Goz kuresine basi yapan IH'ler astigmat olusumuna, orbital kas tutulumu sasiliga yol acar.
(1,9) Astigmat duzeltici etkiyi arttirmak icin intacs'la kombine veya intacs sonrasi uygulamalar bildirilmistir.
Mikroinsizyon katarakt cerrahisinin (MICS) (2 mm'nin alti kesi genisligi) baslamasi, asiferik ve torik GIL'ler, cerraha daha iyi astigmat ve dusuk-yuksek sirali aberasyonlarin azaltilmasi imkani saglamaktadir.
ayda 7 (%21) hastada hiuastigmat tespit edilmezken, 10 (%30) hastada 0,25-0,50 D astigmat, 11 (%33) hastada 0,75-1 D astigmat, 4 (%12) hastada 1,25-1,50 D astigmat, 1 (%3) hastada da 2 D astigmat tespit edildi.
Bizim calismamizda ortalama duzeltilmis en iyi gorme keskinliginin kontakt lensler arasinda farklilik gostermemesinin calismamiza katilan olgularin astigmat derecelerinin Richdale ve arkadaslarinin calismasindaki olgulara gore daha dusuk olmasi yada kullanilan lens dizaynlarinin farkli olmasina bagli olabilecegini dusunduk.
3) Kisiye ozel uretilmis progresif on yuzeye sahip mercegin arka yuzeyine sferik ve astigmat recete degeri onceden islenir.
Children in the astigmatic group had a relatively broad distribution of spherical refractive errors, with more astigmats having hyperopic spherical diopter [greater than or equal to] 2.00 D than non- astigmats, whereas in the nonastigmatic group, the data showed a tighter distribution, with most children having low hyperopic spherical diopter (Figure 2).
The experimental hologram is a 2" square, but the couple believe that a larger hologram would yield better results, and a set of high-resolution starburst patterns or machine fabrication of the 3D object, would allow measurement of astigmatism up to 8 D, covering around 75% of astigmats (which can go to [+ or -]20 D).
However, generally, for low astigmats, a toric lens will provide superior vision to an aspheric lens alone.
While a reduction in performance in uncorrected astigmats, if observed, could be due to difficulties introduced by astigmatic blur, we must rule out the possibility that some or all of any reduced performance in uncorrected astigmats is due to poor visual motor or perceptual development resulting from persistent blur during early childhood development or to astigmatism-related amblyopia.