Ama-aberrations ayaphambukile emibonweni evamile, njengokufiphaza esithombeni. Iningi labantu lijwayele imigomo ekubheke phambili, ukubhekwa kwemvelo, i-presbyopia, ne- astigmatism . Lezi zicatshangelwa ukuthi zenzeke ngokuzenzakalelayo futhi zenze okungu-85% kokungapheleli kweso lomuntu. Kodwa-ke, esinye isici samaphutha okubuyisa engakaze athole ukunakekelwa okuningi kuze kube yamuva nje ukuphazamiseka okuphezulu kwe-oda.
Wonke amehlo anokungenani okungenani ama-aberrations e-oda aphezulu. Lezi zinkinga ziyabonakala manje ngoba ubuchwepheshe buye lwasungulwa ukuze buhlolwe kahle.
Izimpawu Nezibonakaliso
Iso livame ukuhlukahluka okungafani okuphezulu okusebenza ndawonye. Ngezinye izikhathi kunzima ukukhipha izimpawu zomuntu ngamunye ezingase zikhomba omunye ukuxilongwa. Amanye ama-aberrations e-oda ephakeme angakwazi, kodwa, ukuveza izikhalazo zesineke ezifana nalokhu:
- Glare
- Halos
- Umphumela we-Starburst
- Izithombe ze-Ghost
- Ukufiphaza
Izimbangela
Ngezinye izikhathi iso lomuntu liveza ukuphazamiseka kwesithombe. Lezi ziphazamiso zibizwa ngokuthi ama-aberrations. Njengoba i-ray yokukhanya idlula ngesistimu yokukhanya, inesimo sokuqala. Ngamehlo aphelele, isandulela sangaphambili singaphazamiseki futhi sibhebhelele. Emehlweni nokungapheleli, isandulela sezombusazwe siphenduka futhi sinomumo wesimo sesithathu. Ukukhishwa kwe-high-order kungabangelwa izivunguvungu ezingavamile ku- cornea ne-lens, ukuhlukumezeka, ukubhuka, amehlo omile, nabafundi abakhulu kakhulu.
Ukuxilongwa
Ukuphazamiseka okuphezulu okulinganiselwe kuvame kakhulu nge "Shack-Hartmann aberrometer." Le divayisi ilinganisa isandulela seso iso futhi siyifanisa nelanga elingenalo ukuphazamiseka. Leli khadi lokubhabhadiswa libhekwa ngokuthi "i-fingerprint" ye-iso "iso" ngoba lihlukile futhi alifani nanoma yiluphi olunye uhlelo lwama-optical.
Ngokungafani nezilinganiso zendabuko zendabuko, ezidinga okokufaka okuvela kwisiguli, i-aberrometer ithatha imizuzwana kuphela ukuthola izilinganiso futhi ayidingi ukufakwa kwesiguli.
Ukwelapha
Ulwazi lwe-aberrations e-oda oluphakeme luyatholakala iminyaka eminingi. Kuphela kweminyaka embalwa edlule ubuchwepheshe bokuqala bokuhamba phambili bubekwe phambili ngokwanele, kodwa, ukukhiqiza izilinganiso ezinembile nokuxilongwa. Izinhlobo ezithile zezingqimba ezintsha ezenziwe ngezibuko, ama-lens othintana nawo, izimila ze-lens intraocular, kanye nokulungiswa kombono oqondiswa phambili wesibindi kungalungisa ukuphazamiseka okuphezulu kwe-oda. Kuzozwakala okuningi ngokuphathwa kokwehla okuphezulu kweminyaka eminyakeni embalwa ezayo, njengobuchwepheshe bokuqala obonakala sengathi kunezinhlelo eziningi zokulungiswa kombono.