Askep retinoblastoma - Askep retinoblastoma berikut ini adalah askep retinoblastoma teman-teman dapat mendowload dan mengcopynya silahkan menuju menu askep-askep untuk pilihan askep lainnya untuk askep dengan klien retino blastoma silahkan baca di bawah ini cek it dot ASUHAN KEPERAWATAN PADA GANGGUAN SISTEM PENGLIHATAN RETINOBLASTOMA I.
ANATOMI FISIOLOGI RETINA
Retina adalah suatu membran yang tipis dan bening, terdiri atas penyebaran daripada serabutserabut saraf optik. Letaknya antara badan kaca dan koroid. Bagian anterior berakhir pada ora serata, di bagian retina yang letaknya sesuai dengan sumbu penglihatan terdapat makula lutea (bintik kuning) kira-kira berdiameter 1 – 2 mm yang berperan penting untuk tajam penglihatan. Di tengah makula lutea terdapat bercak mengkilap yang merupakan reflek fovea. Kira-kira 3 mm ke arah nasal kutub belakang bola mata terdapat t erdapat daerah bulat putih kemerah-merahan, kemerah-merahan, disebut papil saraf optik, yang di tengahnya agak melekuk dinamakan eksvakasi eksvakasi foali. Arteri retina sentral sentral bersama venanya masuk ke dalam bola mata di tengah papil saraf optik. Retina meluas ke depan hampir mencapai badan siliaris. Struktur ini tersusun dalam 10 lapisan dan mengandung sel batang (rods) dan sel kerucut (cones), yang merupakan reseptor penglihatan, ditambah 4 jenis neuron: 1. Sel bipolar 2. Sel ganglion 3. Sel horizontal 4. Sel amakrin Karena lapisan saraf pada retina disatukan bersama-sama oleh sel-sel glia yang disebut sel muller. Tonjolan-tonjolan dari sel-sel ini membentuk membran pembatas dalam di permukaan dalam retina dan membran pembatas luar di lapisan l apisan reseptor. Retina berbatas dengan koroid dengan sel pigmen epitel retina, dan terdiri atas lapisan: 1. Lapis fotoreseptor, fotoreseptor, merupakan merupakan lapis terluar terluar retina terdiri atas atas sel batang yang mempunyai bentuk ramping, dan sel kerucut. 2. Membran limitan eksterna eksterna yang yang merupakan merupakan membran ilusi. 3. Lapis nukleus, nukleus, merupakan merupakan susunan susunan lapis nukleus nukleus sel kerucut kerucut dan batang. Ketiga lapis di atas avaskular dan mendapat metabolisme dari kapiler koroid. 4. Lapis pleksiform pleksiform luar, merupakan merupakan lapis aseluler dan merupakan tempat sinapsis sel fotoreseptor dengan sel bipolar dan sel horizontal. 5. Lapis nukleus nukleus dalam, merupakan tubuh sel bipolar, sel horizontal horizontal dan sel sel muller lapis ini
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mendapat metabolisme dari arteri retina sentral. 6. Lapis pleksiform pleksiform dalam, merupakan merupakan lapis lapis aseluler merupakan merupakan tempat tempat sinaps sel sel tripolar, sel amakrin dengan sel ganglion. 7. Lapis sel sel ganglion yang yang merupakan merupakan lapis badan badan sel daripada daripada neuron neuron kedua. 8. Lapis serabut serabut saraf, merupakan merupakan lapis akson sel ganglion menuju menuju ke arah saraf saraf optik. Di dalam lapisan-lapisan ini terletak sebagian besar pembuluh darah retina. 9. Membran limitan interna, merupakan merupakan membran hialin antara retina dan badan badan kaca. kaca. Warna retina r etina biasanya jingga dan kadang-kadang kadang-kadang pucat pada anemia dan iskemia dan merah pada hyperemia. h yperemia. Untuk melihat fungsi retina r etina maka dilakukan pemeriksaan subjektif retina seperti: tajam penglihatan, penglihatan warna, dan lapang pandangan. Pemeriksaan objektif adalah: -
Elektroretino-gram (ERG)
-
Elektro-okulogram (EOG)
-
Visual Evoked Respons (VER)
•
Fungsi Retina
Fungsi retina pada dasarnya adalah menerima bayangan visual yang dikirim ke otak. Bagian sentral retina atau daerah makula mengandung lebih banyak fotoreseptor kerucut daripada bagian perifer retina. - Sel kerucut kerucut (cones) yang yang berjumlah 7 juta dan paling banyak di region region fovea, fovea, berfungsi berfungsi untuk sensasi yang nyata (penglihatan yang paling tajam) dan penglihatan warna. - Sel batang (rods) untuk sensasi yang sama-samar pada waktu malam atau cahaya remang. Sel ini mengandung pigmen visual ungu yang disebut rhodopsin. •
II.
Komponen-komponen Komponen-komponen Retina PENGERTIAN
Retinoblastoma adalah tumor retina yang terdiri atas sel neuroblastik yang tidak berdiferensiasi dan merupakan tumor ganas retina pad anak. 40 % penderita retinoblastoma merupakan penyakit herediten. Retinoblastoma merupakan tumor yang bersifat autosomal dominan dan merupakan tumor embrional.
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Pada saat terakhir ini terlihat terl ihat kenaikan jumlah anak menderita retinoblastoma di Indonesia. Kenaikan insiden insiden tumor ini mungkin sekali akibat sudah meningkatnya meningkatnya penerangan penerangan akan tumor pada anak, sehingga prang tua penderita lebih cepat memeriksakan mata anaknya.
III. PENYEBAB Retinoblastoma terjadi karena kehilangan kedua kromosom dari satu alel dominan protektif yang berada dalam pita kromosom 13g14. Bisa karena mutasi atau diturunkan. Mutasi terjadi akibat perubahan pada rangkaian basa DNA. Peristiwa ini dapat timbul karena kesalahan replikasi, gerakan, atau perbaikan sel. Mutasi dalam sebuah sel benih akan ditransmisikan kepada turunan sel tersebut. Sejumlah faktor, termasuk virus, zat kimi a, sinar ultraviolet, dan radiasi pengion, akan meningkatkan laju mutasi. Mutasi kerapkali mengenai sel somatic dan kemudian diteruskan kepada generasi sel berikutnya dalam suatu generasi. IV. PATOFISIOLOGI Retinoblastoma merupakan tumor ganas utama intraokuler yang ditemukan pada anak-anak, terutama pada usia di bawah 5 tahun. Tumor berasal dari jaringan retina embrional, dapat terjadi unilateral (70 %) dan bilateral (30 %). Sebagian besar kasus bilateral bersifat herediten yang diwariskan melalui kromosom. Massa tumor dapat tumbuh ke dalam vitreous (endofilik) dan tumbuh menembus keluar lapisan retina atau ke ruang sub retina (endofilik). Kadang-kadang tumor berkembang difus. Pertumbuhan endofilik lebih umum terjadi. Tumor endofilik timbul ti mbul dari lapisan inti dalam lapisan serabut saraf dan lapisan ganglion retina. Tipe eksofilik timbul dari lapisan inti luar dan dapat terlihat seperti ablasio retina yang solid. Perluasan retina okuler ke dalam tumor vitreous vit reous dapat terjadi pada tipe endofilik dan dapat timbul sebaran metastase lewat spatium subretina atau melalui tumor vitreous. Selain itu tumor dapat meluas lewat infiltrasi pada lamina cribrosa langsung ke nervus optikus dengan perluasan ke lapisan koroid dapat ditemukan infiltrasi vena-vena pada daerah tersebut disertai metastasis hematogen ke tulang dan sumsung tulang. Tumor mata ini, terbagi atas at as IV stadium, masing-masing: •
Stadium I: menunjukkan tumor masih terbatas pada retina (stadium tenang)
•
Stadium II: tumor terbatas pada bola mata.
Stadium III: terdapat perluasan ekstra okuler regional, baik yang melampaui ujung nervus optikus yang dipotong saat enuklasi.
•
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degeneratif, diikuti nekrosis dan klasifikasi. Pasien yang selamat memiliki kemungkinan 50 % menurunkan anak dengan retinoblastoma.
V.
TANDA DAN GEJALA
1. Leukokoria merupakan keluhan keluhan dan gejala yang paling sering ditemukan. 2. Tanda dini dini retinoblastoma adalah mata mata juling, mata merah merah atau terdapatnya warna warna iris yang tidak normal. 3. Tumor dengan dengan ukuran sedang akan akan memberikan memberikan gejala hipopion, di dalam dalam bilik mata depan, uveitis, endoftalmitis, ataupun suatu panoftalmitis. 4. Bola mata menjadi besar, besar, bila tumor sudah sudah menyebar menyebar luas di di dalam bola mata. 5. Bila terjadi nekrosis tumor, tumor, akan terjadi gejala pandangan pandangan berat. 6. Tajam penglihatan sangat menurun. 7. Nyeri 8. Pada tumor yang yang besar, maka maka mengisi seluruh seluruh rongga badan badan kaca sehingga sehingga badan kaca kaca terlihat benjolan berwarna putih kekuning-kuningan kekuning-kuningan dengan pembuluh darah di atasnya.
VI. PEMERIKSAAN PENUNJANG - Ultrasonografi dan tomografi komputer dilakukan terutama untuk pasien dengan metastase ke luar misalnya dengan gejala proptosis bola mata. -
Elektroretino-gram (ERG), berguna untuk menilai kerusakan luas pada retina.
-
Elektro-okulogram (EOG)
- Visual Evoked Respons (VER), berguna untuk mengetahui mengetahui adanya perbedaan rangsangan yang sampai ke korteks sehingga dapat diketahui adanya gangguan rangsangan/penglihatan rangsangan/penglihatan pada seseorang.
VII. PENATALAKSANAAN Semua tujuan terapi adalah merusak tumor dan mempertahankan penglihatan yang memungkinkan memungkinkan tanpa membahayakan membahayakan hidup. Terapi primer retinoblastoma unilateral
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baik, tergantung dari letak, besar dan tebal. Pada tumor yang masih intraokuler dapat dilakukan krioterapi, fotokoagulasi laser, atau kombinasi sitostatik dan fotokoagulasi laser untuk mempertahankan visus.
•
Pada tumor intraokuler yang sudah mencapai seluruh vitreous dan visus nol, dilakukan enuklasi. •
Bila tumor telah keluar bulbus okuli, tapi masih terbatas di rongga orbita, dilakukan kombinasi eksenterasi, radioterapi, dan kemoterapi.
•
Pasien harus terus dievaluasi seumur hidup karena 20 – 90 % pasien retinoblastoma bilateral akan menderita tumor ganas primer, terutama t erutama osteosarkoma. osteosarkoma.
VIII. PROGNOSIS Tumor mempunyai prognosis baik bila ditemukan dini dan intraokuler. Prognosis sangat buruk bila sudah tersebar ekstra ocular pada saat pemeriksaan pertama. Tumor dapat masuk ke dalam otak melalui saraf optik yang terkena infiltrasi sel tumor.
ASUHAN KEPERAWATAN I.
Pengkajian
A.
Pengkajian yang penting untuk retinoblastoma
1. Sejak kapan sakit mata dirasakan Penting untuk mengetahui perkembangan penyakitnya, penyakitnya, dan sejauhmana perhatian klien dan keluarganya terhadap masalah yang dialami. Retinoblastoma mempunyai prognosis baik bila ditemukan dini. 2. Riwayat trauma sebelum sebelum atau atau sesudah sesudah ada keluhan keluhan Trauma dapat memberikan memberikan kerusakan pada pada seluruh lapis kelopak ataupun ataupun bola mata. Trauma sebelumnya dapat juga memberikan kelainan k elainan pada mata tersebut sebelum meminta pertolongan. 3. Apakah ada keluarga yang menderita menderita penyakit penyakit yang sama sama sebelumnya sebelumnya Retinoblastoma bersifat herediter yang diwariskan melalui kromosom, protein yang selamat memiliki kemungkinan 50 % menurunkan anak dengan d engan retinoblastoma.
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5. Apakah ada keluhan lain yang yang menyertai menyertai Keluhan sakit kepala merupakan keluhan paling sering diberikan oleh penderita. Adanya keluhan pada organ lain juga bisa diakibatkan oleh tumor yang bermetastase. bermetastase. 6. Penyakit mata sebelumnya Kadang-kadang Kadang-kadang dengan mengetahui riwayat penyakit mata sebelumnya akan dapat menerangkan tambahan gejala-gejala penyakit yang dikeluhkan penderita. 7. Penyakit lain yang yang sedang diderita Bila sedang menderita penyakit lain dengan keadaan yang buruk, dapat pula memperburuk keadaan klien 8. Usia penderita Dikenal beberapa jenis penyakit yang yang terjadi pada usia tertentu. Retinoblastoma umumnya ditemukan pada anak-anak, terutama pada usia di bawah 5 tahun. 9. Riwayat Psikologi a. Reaksi pasien dana keluarganya keluargan ya terhadap gangguan penglihatan penglih atan yang yang dialami pasien: cemas, takut, gelisah, sering menangis, sering bertanya. b. Mekanisme koping 10. Pemeriksaan Fisik Umum Diperlukan untuk mengetahui kemungkinan adanya keadaan umum yang dapat merupakan penyebab penyakit mata yang sedang diderita. 11. Pemeriksaan Khusus Mata a. Pemeriksaan tajam penglihatan Pada retinoblastoma, retinoblastoma, tumor dapat menyebar menyebar luas di dalam bola mata sehingga dapat merusak semua organ di mata yang menyebabkan tajam penglihatan sangat menurun. b. Pemeriksaan gerakan bola mata Pembesaran tumor dalam rongga mata akan menekan saraf dan bahkan dapat merusak saraf tersebut dan apabila mengenai saraf III, IV, dan VI maka akan menyebabkan mata juling. c. Pemeriksaan susunan mata luar dan lakrimal
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-
Leukokoria
Yaitu reflek pupil yang berwarna putih. -
Hipopion
Yaitu terdapatnya nanah di bilik mata depan. -
Hifema
Yaitu terdapatnya darah di bilik mata depan -
Uveitis
d. Pemeriksaan Pupil Leukokoria (refleks pupil yang berwarna putih) merupakan keluhan dan gejala yang paling sering ditemukan pada penderita dengan retinoblastoma. e. Pemeriksaan funduskopi Menggunakan oftalmoskopi untuk pemeriksaan media, papil saraf optik, dan retina. Refleksi tak ada (atau gelap) akibat perdarahan yang banyak dalam badan kaca. f.
Pemeriksaan tekanan bola mata
Pertumbuhan tumor ke dalam bola mata menyebabkan tekanan bola mata meningkat.
B.
Pengelompokan Pengelompokan Data
•
Data Subjektif
-
Mengeluh nyeri pada mata
-
Sulit melihat dengan jelas
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-
Aktivitas kurang
-
Tekanan bola mata meningkat
-
Gelisah
-
Refleks pupil berwarna putih (leukokoria)
-
Tajam penglihatan menurun
-
Sering menangis
-
Keluarga sering bertanya
-
Ekspresi meringis
-
Tak akurat mengikuti instruksi
-
Keluarga nampak murung
-
Keluarga nampak gelisah
-
Pertanyaan/pernyataan Pertanyaan/pernyataan keluarga salah konsepsi
II.
Diagnosa Keperawatan
1. Gangguan
rasa
nyaman
nyeri
sehubungan
dengan
(kompresi/dekstruksi (kompresi/dekstruksi jaringan saraf, inflamasi), ditandai dengan: -
Keluhan nyeri
-
Aktivitas kurang (distraksi/perilaku berhati-hati)
-
Gelisah (respons autonomik)
proses
penyakitnya
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-
Mata merah
-
Bola mata membesar
-
Tekanan bola mata meningkat
-
Refleks pupil berwarna putih (leukokoria)
3. Gangguan rasa aman cemas, sehubungan dengan: -
Perubahan status kesehatan
-
Adanya nyeri
-
Kemungkinan/kenyataan Kemungkinan/kenyataan kehilangan penglihatan
Ditandai dengan: -
Merasa takut
-
Gelisah
-
Sering menangis
-
Sering bertanya
4. Resiko tinggi cedera, sehubungan dengan keterbatasan keterbat asan lapang pandang yang ditandai dengan: -
Menurunnya ketajaman penglihatan
-
Mata juling (strabismus)
-
Tekanan bola mata meningkat
-
Refleks pupil berwarna putih (leukokoria)
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Doenges, Marilynn, E., et. al., 1999, Rencana Asuhan Keperawatan: Pedoman untuk Perencanaan Perencanaan dan Pendokumentasian Perawatan Pasien, Edisi 3, EGC, Jakarta. Ganong, William, F., 1998, Buku Ajar Fisiologi Kedokteran, Edisi 17, EGC, Jakarta. Mansjoer, A., et. al. 2001, Kapita Selekta Kedokteran, Jilid I, Edisi III, Cetakan IV, Media Aekulapius. FK-UI, Jakarta. http://vhieraquw.blogspot.com/2011/02/ask http://vhieraquw.blog spot.com/2011/02/askep-retino-blastoma.html ep-retino-blastoma.html
Retino blastoma KONSEP MEDIK A. Pengertian
Retinoblastoma adalah suatu neoplasma yang berasal dari neuroretina (sel kerucut sel batang) atau sel glia yang bersifat ganas. Merupakan tumor ganas intraokuler yang ditemukan pada anak-anak, terutama pada usia dibawah lima tahun. Tumor berasal dari jaringan retina embrional. Dapat terjadi unilateral (70%) dan bilateral (30%). Sebagian besar kasus bilateral bersifat herediter yang diwariskan melalui kromosom. Massa tumor diretina dapat tumbuh kedalam vitreus (endofitik) dan tumbuh menembus keluar (eksofitik). Pada beberapa kasus terjadi penyembuhan secara spontan. Sering terjadi perubahan degeneratif, diikuti nekrosis dan kalsifikasi. Pasien yang selamat memiliki kemungkinan 50% menurunkan anak dengan retinoblastoma. Pewarisan ke saudara sebesar 4-7%.
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C. Patofisiologi
Jika letak tumor di macula, dapat terlihat gejala awal strabismus. Massa tumor yang semakin membesar akan memperlihatkan gejala leukokoria, tanda-tanda peradangan vitreus yang menyerupai endoftalmitis. Jika sel-sel tumor terlepas dan masuk ke segmen anterior mata, akan menyebabkan glaucoma atau tanda peradangan berupa hipopion atau hifema. Pertumbuhan tumor ini dapat menyebabkan metastasis dengan invasi tumor melalui; nervus optikus ke otak, sclera ke jaringan orbita dan sinus paranasal, dan metastasis jauh kesumsum tulang melalui pembuluh darah. Pada fundus terlihat bercak kuning mengkilat, dapat menonjol ke badan kaca. Dipermukaan terdapat neovaskularisasi dan perdarahan. Warna iris tidak normal. Penyebaran secara limfogen, ke kelenjar limfe preaurikuler dan submandibula serta secara hematogen ke sumsum tulang dan visera , terutama hati. D. Klasifikasi
1. Golongan I Tumor soliter/multiple kurang dari 4 diameter papil. Terdapat pada atau dibelakang ekuator Prognosis sangat baik 2. Golongan II Satu atau beberapa tumor berukuran 4 -10 diameter papil Prognosis baik 3. Golongan III
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Setengah retina terkena benih di badan kaca Prognosis buruk Terdapat tiga stadium dalam retinoblastoma : • Stadium tenang Pupil lebar, dipupil tampak refleks kuning yang disebut “automatic cats eye”. • Stadium glaukoma
Oleh karena tumor menjadi besar, menyebabkan tekanan intraokular meninggi. • Stadium ekstraokuler
Tumor menjadi lebih besar, bola mata memebesar menyebabakan eksoftalmus kemudian dapt pecah kedepan sampai keluar dari rongga r ongga orbita disertai nekrose diatasnya E. Manifestasi Klinis
Gejala retinoblastoma dapat menyerupai penyakit lain dimata. Bila letak tumor dimakula, dapat terlihat gejala awal strabismus. Massa tumor yang semakin membesar akan memperlihatkan gejala leukokoria, tanda-tanda peradangan di vitreus (Vitreous seeding) yang menyerupai
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Jika satu mata yang terserang, pengobatan bergantung pada kalsifikasi tumor: 1. Golongan I dan II dengan pengobatan local (radiasi, cryotherapy, fotokoagulasi laser). Kadang-kadang digabung dengan kemoterapi. 2. Jika tumor besar (golongan IV dan V) mata harus dienukleasi segera. Mata tidak terkena dilakukan radiasi sinar X dan kemoterapi. Pada tumor intraokuler yang sudah mencapai seluruh vitreus dan visus nol, dilakukan enukleasi. Jika tumor telah keluar kebulbus okuli tetapi masih terbatas di rongga orbita, dilakukan kombinasi eksenterasi, radioterapi dan kemoterapi. Klien harus terus dievaluasi seumur hidup karena 20-90% klien retinoblastoma bilateral akan menderita tumor ganas primer, terutama osteosarkoma.
KONSEP KEPERAWATAN A. Pengkajian
1. Biodata a. Identitas klien meliputi nama, umur, agama, jenis kelamin, pendidikan, alamat, tanggal masuk rumah sakit, tanggal pengkajian, No register, dan diagnosa medis.
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Riwayat kesehatan masa lalu berkaitan dengan Kemungkinan memakan makanan/minuman yang terkontaminasi, infeksi ditempat lain misal: pernapasan. c. Riwayat kesehatan keluarga Berkaitan erat dengan penyakit keturunan dalam keluarga, misalnya ada anggota keluarga yang pernah menderita penyakit yang sama. 4. Pemberian Sistem a. Aktivitas Gejala: kelelahan, malaise, kelemahan, ketidakmampuan untuk melakukan aktivitas biasanya. Tanda: kelelahan otot. Peningkatan kebutuhan tidur, somnolen. b. Sirkulasi Gejala: palpitasi. Tanda: takikardi, mur-mur jantung. Kulit, membran mukosa pucat. Defisit saraf kranial dan/atau tanda perdarahan cerebral. c. Eliminasi
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Gejala: kurang/penurunan koordinasi. Perubahan alam perasaan, kacau, disorientasi, ukuran konsisten. Pusing, kebas, kesemutan parastesi. Tanda: otot mudah terangsang, aktivitas kejang. g. Nyeri/ketidaknyamanan Gejala: nyeri orbital, sakit kepala, nyeri tulang/sendi, nyeri tekan sternal, kram otot. Tanda: perilaku berhati-hati/distraksi, gelisah, fokus, pada diri sendiri. h. Pernapasan Gejala: napas pendek dengan kerja minimal. Tanda: dispnea, takipnea, batuk. Gemericik, ronki. Penurunan bayi napas. i. Keamanan Gejala: riwayat infeksi saat ini/dahulu, jatuh.. Gangguan penglihatan/kerusakan.
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http://jatiarsoeko.blogspot.com/2012/01/askep-retino-blastoma.html
ANATOMI
FISIOLOGI
RETINA
Retina adalah suatu membran yang tipis dan bening, terdiri atas penyebaran daripada serabutserabut saraf optik. Letaknya antara badan kaca dan koroid. Bagian anterior berakhir pada ora serata, di bagian retina yang letaknya sesuai dengan sumbu penglihatan terdapat makula lutea (bintik kuning) kira-kira berdiameter 1 – 2 mm yang berperan penting untuk tajam penglihatan. Di tengah makula lutea terdapat bercak bercak mengkilap yang merupakan merupakan reflek reflek fovea. Kira-kira 3 mm ke arah nasal kutub belakang bola mata terdapat daerah bulat putih kemerah-merahan, disebut papil saraf optik, yang di tengahnya agak melekuk dinamakan eksvakasi foali. Arteri retina sentral
bersama
venanya
masuk
ke
dalam
bola
mata
di
tengah
papil
saraf
optik.
Retina meluas ke depan hampir mencapai badan siliaris. Struktur ini tersusun dalam 10 lapisan dan mengandung sel batang (rods) dan sel kerucut (cones), yang merupakan reseptor penglihatan, ditambah 1. 2. 3.
4
jenis Sel Sel Sel
neuron: bipolar ganglion horizontal
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5.
Lapis nukleus dalam, dalam, merupakan tubuh sel bipolar, sel horizontal horizontal dan sel muller lapis ini
mendapat 6.
metabolisme
dari
arteri
retina
sentral.
Lapis pleksiform dalam, merupakan lapis aseluler merupakan tempat sinaps sel tripolar, sel
amakrin 7.
Lapis
dengan sel
ganglion
yang
sel
merupakan
lapis
badan
ganglion. sel
daripada
neuron
kedua.
8. Lapis serabut saraf, saraf, merupakan lapis akson akson sel ganglion menuju ke arah saraf optik. Di dalam lapisan-lapisan 9.
ini
terletak
sebagian
besar
pembuluh
darah
retina.
Membran limitan interna, merupakan membran hialin hialin antara retina dan badan badan kaca.
Warna retina biasanya jingga dan kadang-kadang ka dang-kadang pucat pada anemia dan iskemia dan merah pada
hyperemia.
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40 % penderita retinoblastoma merupakan penyakit herediten. Retinoblastoma merupakan tumor
yang
bersifat
autosomal
dominan
dan
merupakan
tumor
embrional.
Sebagian besar penderita dengan retinoblastoma aktif ditemukan pada usia 3 tahun, sedang bila terdapat
binokuler
biasanya
terdapat
pada
usia
lebih
muda
atau
10
bulan.
Retinoblastoma dapat ditemukan dalam bentuk yang regresi terutama pada anak-anak. Pada saat terakhir ini terlihat kenaikan jumlah anak menderita retinoblastoma di Indonesia. Kenaikan insiden tumor ini mungkin sekali akibat akibat sudah meningkatnya penerangan penerangan akan tumor pada
III.
anak,
sehingga
prang
tua
penderita
lebih
cepat
memeriksakan
mata
anaknya.
PENYEBAB
Retinoblastoma terjadi karena kehilangan kedua kromosom dari satu alel dominan protektif
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Tumor
mata
Stadium
•
I:
terbagi
menunjukkan
Stadium
• •
ini,
tumor
II:
atas masih
tumor
IV
stadium,
terbatas
pada
terbatas
retina
pada
masing-masing: (stadium bola
tenang) mata.
Stadium III: terdapat perluasan ekstra okuler regional, baik yang melampaui ujung nervus
optikus •
Pada
yang Stadium
beberapa
IV: kasus
dipotong ditemukan
terjadi
saat
metastase
penyembuhan
secara
jauh spontan,
enuklasi. ke
sering
dalam
otak.
terjadi perubahan
degeneratif, diikuti nekrosis dan klasifikasi. Pasien yang selamat memiliki kemungkinan 50 % menurunkan
V.
anak
TANDA
dengan
DAN
retinoblastoma.
GEJALA
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-
Elektro-okulogram
(EOG)
Visual Evoked Respons (VER), berguna untuk mengetahui adanya perbedaan rangsangan
yang sampai ke korteks sehingga dapat diketahui adanya gangguan rangsangan/penglihatan pada seseorang.
VII.
PENATALAKSANAAN
Semua
tujuan
terapi
adalah
merusak
tumor
dan
mempertahankan
penglihatan
yang
memungkinkan tanpa membahayakan hidup. Terapi primer retinoblastoma unilateral biasanya enuklasi, kendatipun pada kasus-kasus tertentu, alternatif seperti krioterapi, fotokoagulan atau radiasi •
dapat
dipertimbangkan.
Bila tumor masih terbatas intraokuler, pengobatan dini mempunyai prognosis yang baik,
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A.
Pengkajian
yang
1.
Sejak
kapan
penting
untuk
sakit
retinoblastoma
mata
dirasakan
Penting untuk mengetahui perkembangan penyakitnya, dan sejauhmana perhatian klien dan keluarganya terhadap masalah yang dialami. Retinoblastoma mempunyai prognosis baik bila ditemukan 2.
dini.
Riwayat
trauma
sebelum
atau
sesudah sesudah
ada
keluhan
Trauma dapat memberikan kerusakan pada seluruh lapis kelopak ataupun ataupun bola mata. Trauma sebelumnya
dapat
juga
memberikan
kelainan
pada
mata
tersebut
sebelum
meminta
pertolongan. 3.
Apakah
ada
keluarga
yang
menderita
penyakit penyakit
yang
sama sama
sebelumnya
Retinoblastoma bersifat herediter yang y ang diwariskan melalui kromosom, protein yang selamat
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a. Reaksi pasien dana keluarganya terhadap gangguan penglihatan yang dialami pasien: cemas, takut,
gelisah,
sering
b. 10.
menangis,
sering
Mekanisme
bertanya. koping
Pemeriksaan
Fisik
Umum
Diperlukan untuk mengetahui kemungkinan adanya keadaan umum yang dapat merupakan penyebab
penyakit
mata
yang
sedang
diderita.
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e.
Pemeriksaan
funduskopi
Menggunakan oftalmoskopi untuk pemeriksaan media, papil saraf optik, dan retina. Refleksi tak ada f.
(atau
gelap)
akibat
Pemeriksaan
perdarahan
yang
tekanan
banyak
dalam bola
badan
kaca. mata
Pertumbuhan tumor ke dalam bola mata menyebabkan tekanan bola mata meningkat.
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-
Ekspresi Tak
akurat
meringis mengikuti
instruksi
-
Keluarga
nampak
murung
-
Keluarga
nampak
gelisah
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3. -
Gangguan
rasa
aman
Perubahan
-
cemas,
sehubungan
status Adanya
Kemungkinan/kenyataan
dengan: kesehatan nyeri
kehilangan
penglihatan
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Ganong,
William,
F.,
1998,
Buku
Ajar
Fisiologi
Kedokteran,
Edisi
17,
EGC,
Jakarta.
Mansjoer, A., et. al. 2001, Kapita Selekta Kedokteran, Jilid I, Edisi III, Cetakan IV, Media Aekulapius. FK-UI, Jakarta.
ASUHAN KEPERAWATAN (ASKEP)
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Tujuan khusus :
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Gejala retinoblastoma dapat menyerupai penyakit lain dimata. Bila letak tumor dimakula,
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b. Tumor ada didepan ekuator atau tumor soliter berukuran >10 diameter papil
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asimetri wajah akan terjadi karena hambatan pertumbuhan orbita. Bagaimanapun, jika mata
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dikombinasi dengan vincristine dan VP16 atau VM26 setelah digunakan. Sekarang
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